{"id":"CVE-2023-52982","aliases":["BELL-CVE-2023-52982","CLSA-2026-1789898700","DEBIAN-CVE-2023-52982","EUVD-2023-59738","GHSA-3cvm-96rv-2mw4","SUSE-SU-2025:01620-1","SUSE-SU-2025:01640-1","UBUNTU-CVE-2023-52982"],"status":"published","title":"fscache: Use wait_on_bit() to wait for the freeing of relinquished volume","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00228,"percentile":0.13762,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2025-03-27T16:43:20Z","modified":"2026-11-05T21:17:06Z","fixes":[{"ecosystem":"Alpaquita:stream","package":"linux-lts","fixed_in":["6.6.58-r0"],"sources":["osv"]},{"ecosystem":"Linux","package":"Kernel","fixed_in":["6.1.11"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"linux","fixed_in":["6.1.11-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["6.1.11-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["6.1.11-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpaquita:stream","package":"linux-lts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.112-r0"},{"fixed":"6.6.58-r0"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"bpftool","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-abi-stablelists","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-cross-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-devel-matched","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-modules","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-modules-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-modules-extra","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-modules-internal","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-modules-partner","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-debug-uki-virt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-devel-matched","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-284.1101.el9_2.tuxcare.11.els14"}]}],"bundled":170},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-28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t.gov/vuln/detail/CVE-2023-54258","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36909","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36949","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47728","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-53230","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56703","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-57898","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21918","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37795","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37844","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38120","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38304","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38510","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38587","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39865","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39944","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39977","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40018","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40085","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40111","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40237","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40281","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68229","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68261","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68337","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68782","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68788","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23151","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23272","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23391","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23457","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31454","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31533","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31566","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31665","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31673","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43024","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43041","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43065","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43091","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43201","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43406","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43407","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45843","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45870","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45873","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45919","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46050","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46051","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46071","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46102","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46146","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46173","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46196","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46253","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46303","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52921","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52929","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53035","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53048","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53184","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53225","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53229","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53270","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53349","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53352","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53357","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63884","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63968","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64299","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64303","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64304","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64305","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64306","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64313","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64317","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64320","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64322","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64323","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64329","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64330","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64334","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64335","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64336","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64340","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64341","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64343","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64344","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64348","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64352","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64355","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64370","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64374","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64375","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64380","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64381","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64403","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64408","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64411","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64412","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64422","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64423","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64435","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64436","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64448","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64450","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64563","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68202","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68251","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68294","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68336","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68365","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68376","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68391","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72125","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72126","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72389","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72438","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72472","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74470","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74556","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74565","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74580","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74582","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74587","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74588","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74589","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74597","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74599","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74604","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74609","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74621","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74630","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74641","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74656","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74660","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74667","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74669","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74672","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74682","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74688","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74689","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74700","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74704","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74705","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74714","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74720","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74725","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74730","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74744","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74746","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74752","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80529","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80536","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80558","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80576","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80725","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89555","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52982.json","tags":["advisory"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-52982","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202501620-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1054914","tags":["report"]},{"url":"https://bugzilla.suse.com/1206843","tags":["report"]},{"url":"https://bugzilla.suse.com/1210409","tags":["report"]},{"url":"https://bugzilla.suse.com/1225903","tags":["report"]},{"url":"https://bugzilla.suse.com/1229361","tags":["report"]},{"url":"https://bugzilla.suse.com/1229621","tags":["report"]},{"url":"https://bugzilla.suse.com/1230764","tags":["report"]},{"url":"https://bugzilla.suse.com/1231103","tags":["report"]},{"url":"https://bugzilla.suse.com/1231910","tags":["report"]},{"url":"https://bugzilla.suse.com/1236777","tags":["report"]},{"url":"https://bugzilla.suse.com/1237981","tags":["report"]},{"url":"https://bugzilla.suse.com/1238032","tags":["report"]},{"url":"https://bugzilla.suse.com/1238471","tags":["report"]},{"url":"https://bugzilla.suse.com/1238512","tags":["report"]},{"url":"https://bugzilla.suse.com/1238747","tags":["report"]},{"url":"https://bugzilla.suse.com/1238865","tags":["report"]},{"url":"https://bugzilla.suse.com/1239061","tags":["report"]},{"url":"https://bugzilla.suse.com/1239684","tags":["report"]},{"url":"https://bugzilla.suse.com/1239968","tags":["report"]},{"url":"https://bugzilla.suse.com/1240209","tags":["report"]},{"url":"https://bugzilla.suse.com/1240211","tags":["report"]},{"url":"https://bugzilla.suse.com/1240214","tags":["report"]},{"url":"https://bugzilla.suse.com/1240228","tags":["report"]},{"url":"https://bugzilla.suse.com/1240230","tags":["report"]},{"url":"https://bugzilla.suse.com/1240246","tags":["report"]},{"url":"https://bugzilla.suse.com/1240248","tags":["report"]},{"url":"https://bugzilla.suse.com/1240269","tags":["report"]},{"url":"https://bugzilla.suse.com/1240271","tags":["report"]},{"url":"https://bugzilla.suse.com/1240274","tags":["report"]},{"url":"https://bugzilla.suse.com/1240285","tags":["report"]},{"url":"https://bugzilla.suse.com/1240295","tags":["report"]},{"url":"https://bugzilla.suse.com/1240306","tags":["report"]},{"url":"https://bugzilla.suse.com/1240314","tags":["report"]},{"url":"https://bugzilla.suse.com/1240315","tags":["report"]},{"url":"https://bugzilla.suse.com/1240321","tags":["report"]},{"url":"https://bugzilla.suse.com/1240747","tags":["report"]},{"url":"https://bugzilla.suse.com/1240835","tags":["report"]},{"url":"https://bugzilla.suse.com/1241280","tags":["report"]},{"url":"https://bugzilla.suse.com/1241371","tags":["report"]},{"url":"https://bugzilla.suse.com/1241421","tags":["report"]},{"url":"https://bugzilla.suse.com/1241433","tags":["report"]},{"url":"https://bugzilla.suse.com/1241541","tags":["report"]},{"url":"https://bugzilla.suse.com/1241625","tags":["report"]},{"url":"https://bugzilla.suse.com/1241648","tags":["report"]},{"url":"https://bugzilla.suse.com/1242284","tags":["report"]},{"url":"https://bugzilla.suse.com/1242493","tags":["report"]},{"url":"https://bugzilla.suse.com/1242778","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-47671","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-48933","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-49110","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-49139","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-49741","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-49745","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-49767","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52928","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52931","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52936","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52937","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52938","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52981","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52982","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52986","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-52994","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53001","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53002","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53009","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53014","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53018","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53031","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-53051","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-42307","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-46763","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-46865","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-50038","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21726","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21785","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21791","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21812","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-21839","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22004","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22045","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22055","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-22097","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2312","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-23138","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-39735","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2025/suse-su-202501640-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-52982","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-52982","tags":["report"]},{"url":"https://git.kernel.org/linus/8226e37d82f43657da34dd770e2b38f20242ada7","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-52982","title":"fscache: Use wait_on_bit() to wait for the freeing of relinquished volume","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T16:43:20.735Z","modified":"2026-11-05T20:20:53.28Z","updated_at":"2026-11-05T21:25:03.585715Z"}],"euvd":[{"id":"EUVD-2023-59738","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T16:43:20Z","modified":"2026-11-05T20:20:53Z","updated_at":"2026-11-05T21:01:58.17212Z"}],"ghsa":[{"id":"GHSA-3cvm-96rv-2mw4","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit()...","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T18:31:26Z","modified":"2025-10-28T18:31:31Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:04:14.277873Z"}],"nvd":[{"id":"CVE-2023-52982","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T17:15:45.437Z","modified":"2026-11-05T21:17:06.147Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"updated_at":"2026-11-05T23:57:13.713447Z"}],"osv":[{"id":"BELL-CVE-2023-52982","status":"published","published":"2025-03-28T05:57:47.501701Z","modified":"2026-01-26T09:35:36.946677Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:18.478155Z"},{"id":"DEBIAN-CVE-2023-52982","description":"In the Linux kernel, the following vulnerability has been resolved:  fscache: Use wait_on_bit() to wait for the freeing of relinquished volume  The freeing of relinquished volume will wake up the pending volume acquisition by using wake_up_bit(), however it is mismatched with wait_var_event() used in fscache_wait_on_volume_collision() and it will never wake up the waiter in the wait-queue because these two functions operate on different wait-queues.  According to the implementation in fscache_wait_on_volume_collision(), if the wake-up of pending acquisition is delayed longer than 20 seconds (e.g., due to the delay of on-demand fd closing), the first wait_var_event_timeout() will timeout and the following wait_var_event() will hang forever as shown below:   FS-Cache: Potential volume collision new=00000024 old=00000022  ......  INFO: task mount:1148 blocked for more than 122 seconds.        Not tainted 6.1.0-rc6+ #1  task:mount           state:D stack:0     pid:1148  ppid:1  Call Trace:   \u003cTASK\u003e   __schedule+0x2f6/0xb80   schedule+0x67/0xe0   fscache_wait_on_volume_collision.cold+0x80/0x82   __fscache_acquire_volume+0x40d/0x4e0   erofs_fscache_register_volume+0x51/0xe0 [erofs]   erofs_fscache_register_fs+0x19c/0x240 [erofs]   erofs_fc_fill_super+0x746/0xaf0 [erofs]   vfs_get_super+0x7d/0x100   get_tree_nodev+0x16/0x20   erofs_fc_get_tree+0x20/0x30 [erofs]   vfs_get_tree+0x24/0xb0   path_mount+0x2fa/0xa90   do_mount+0x7c/0xa0   __x64_sys_mount+0x8b/0xe0   do_syscall_64+0x30/0x60   entry_SYSCALL_64_after_hwframe+0x46/0xb0  Considering that wake_up_bit() is more selective, so fix it by using wait_on_bit() instead of wait_var_event() to wait for the freeing of relinquished volume. In addition because waitqueue_active() is used in wake_up_bit() and clear_bit() doesn't imply any memory barrier, use clear_and_wake_up_bit() to add the missing memory barrier between cursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T17:15:45.437Z","modified":"2026-11-06T09:47:25.560611126Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-06T10:07:55.88234Z"},{"id":"UBUNTU-CVE-2023-52982","description":"In the Linux kernel, the following vulnerability has been resolved: fscache: Use wait_on_bit() to wait for the freeing of relinquished volume The freeing of relinquished volume will wake up the pending volume acquisition by using wake_up_bit(), however it is mismatched with wait_var_event() used in fscache_wait_on_volume_collision() and it will never wake up the waiter in the wait-queue because these two functions operate on different wait-queues. According to the implementation in fscache_wait_on_volume_collision(), if the wake-up of pending acquisition is delayed longer than 20 seconds (e.g., due to the delay of on-demand fd closing), the first wait_var_event_timeout() will timeout and the following wait_var_event() will hang forever as shown below:  FS-Cache: Potential volume collision new=00000024 old=00000022  ......  INFO: task mount:1148 blocked for more than 122 seconds.        Not tainted 6.1.0-rc6+ #1  task:mount           state:D stack:0     pid:1148  ppid:1  Call Trace:   \u003cTASK\u003e   __schedule+0x2f6/0xb80   schedule+0x67/0xe0   fscache_wait_on_volume_collision.cold+0x80/0x82   __fscache_acquire_volume+0x40d/0x4e0   erofs_fscache_register_volume+0x51/0xe0 [erofs]   erofs_fscache_register_fs+0x19c/0x240 [erofs]   erofs_fc_fill_super+0x746/0xaf0 [erofs]   vfs_get_super+0x7d/0x100   get_tree_nodev+0x16/0x20   erofs_fc_get_tree+0x20/0x30 [erofs]   vfs_get_tree+0x24/0xb0   path_mount+0x2fa/0xa90   do_mount+0x7c/0xa0   __x64_sys_mount+0x8b/0xe0   do_syscall_64+0x30/0x60   entry_SYSCALL_64_after_hwframe+0x46/0xb0 Considering that wake_up_bit() is more selective, so fix it by using wait_on_bit() instead of wait_var_event() to wait for the freeing of relinquished volume. In addition because waitqueue_active() is used in wake_up_bit() and clear_bit() doesn't imply any memory barrier, use clear_and_wake_up_bit() to add the missing memory barrier between cursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T17:15:00Z","modified":"2025-10-31T05:05:04Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:27.083705Z"},{"id":"CLSA-2026-1789898700","title":"kernel: Fix of 163 CVEs","description":"- drm/amdgpu/sdma6.0: replace BUG_ON() with WARN_ON() {CVE-2026-68251}\n- amd/amdkfd: sync all devices to wait all processes being evicted {CVE-2024-36949}\n- Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted {CVE-2024-36909}\n- Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl {CVE-2024-36912}\n- xfs: save ailp before dropping the AIL lock in push callbacks {CVE-2026-31454}\n- net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak {CVE-2026-43041}\n- netfilter: nf_conntrack: destroy stale expectfn expectations on unregister {CVE-2026-53349}\n- cifs: avoid NULL pointer dereference in dbg call {CVE-2025-37844}\n- fs/notify: call exportfs_encode_fid with s_umount {CVE-2025-40237}\n- cifs: fix potential oops in cifs_oplock_break {CVE-2023-54258}\n- pstore/ram: fix buffer overflow in persistent_ram_save_old() {CVE-2026-46253}\n- Bluetooth: ISO: fix iso_conn related locking and validity issues {CVE-2023-54164}\n- netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets {CVE-2026-45873}\n- ext4: always drain queued discard work in ext4_mb_release() {CVE-2026-43065}\n- ipvs: Defer ip_vs_ftp unregister during netns cleanup {CVE-2025-40018}\n- Bluetooth: MGMT: Fix memory leak in set_ssp_complete {CVE-2026-23151}\n- sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto {CVE-2025-40281}\n- fscache: Use wait_on_bit() to wait for the freeing of relinquished volume {CVE-2023-52982}\n- libceph: prevent potential out-of-bounds reads in process_message_header() {CVE-2026-43406}\n- netfilter: nf_tables: reject immediate NF_QUEUE verdict {CVE-2026-43024}\n- ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock() {CVE-2025-68261}\n- bpf, sockmap: Fix af_unix iter deadlock {CVE-2026-53035}\n- sctp: stream: fully roll back denied add-stream state {CVE-2026-52929}\n- netfilter: xt_CT: drop pending enqueued packets on template removal {CVE-2026-23391}\n- netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() {CVE-2026-23457}\n- libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply() {CVE-2026-43407}\n- af_unix: read UNIX_DIAG_VFS data under unix_state_lock {CVE-2026-31673}\n- jbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted {CVE-2025-68337}\n- Bluetooth: Fix NULL pointer deference on eir_get_service_data {CVE-2025-38304}\n- net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption {CVE-2026-31533}\n- fsnotify: do not generate ACCESS/MODIFY events on child for special files {CVE-2025-68788}\n- isofs: validate Rock Ridge CE continuation extent against volume size {CVE-2026-46303}\n- net: strparser: fix skb_head leak in strp_abort_strp() {CVE-2026-46102}\n- sctp: fix uninit-value in __sctp_rcv_asconf_lookup() {CVE-2026-53225}\n- xfs: don't swallow dquot recovery verification errors {CVE-2026-80529}\n- xfs: dquot recovery does not validate the recovered dquot {CVE-2026-80529}\n- bpf: tcp: fix double sock release on batch realloc {CVE-2026-64575}\n- bpf: tcp: Fix use-after-free in bpf_iter_tcp_established_batch() {CVE-2026-74714}\n- bpf: tcp: Avoid socket skips and repeats during iteration {CVE-2026-74714}\n- bpf: tcp: Use bpf_tcp_iter_batch_item for bpf_tcp_iter_state batch items {CVE-2026-74714}\n- bpf: tcp: Get rid of st_bucket_done {CVE-2026-74714}\n- bpf: tcp: Make sure iter-\u003ebatch always contains a full bucket snapshot {CVE-2026-64575}\n- bpf: tcp: Make mem flags configurable through bpf_iter_tcp_realloc_batch {CVE-2026-74714}\n- USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}\n- NFS: Decrement refcounts if allocating nfs_free_stateid_data fails {CVE-2026-74730}\n- NFS: Pin the 'struct nfs_server' during a FREE_STATEID call {CVE-2026-74730}\n- net/atm: fix slab-out-of-bounds read in vcc_setsockopt() {CVE-2026-74689}\n- net: Make copy_safe_from_sockptr() match documentation {CVE-2026-74689}\n- net: add copy_safe_from_sockptr() helper {CVE-2026-74689}\n- xfs: close crash window in attr dabtree inactivation {CVE-2026-43053}\n- gfs2: prevent NULL pointer dereference during unmount {CVE-2026-53048}\n- KVM: x86/mmu: Preserve nested TDP shadow page tables if they are used as roots\n- ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card {CVE-2025-40085}\n- tee: fix NULL pointer dereference in tee_shm_put {CVE-2025-39865}\n- scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show() {CVE-2025-68229}\n- cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost() {CVE-2024-53230}\n- netfilter: nft_ct: fix use-after-free in timeout object destroy {CVE-2026-31665}\n- md/raid10: fix writes_pending and barrier reference leaks on discard failures {CVE-2026-72438}\n- md/raid10: fix deadlock with check operation and nowait requests {CVE-2026-46050}\n- mm: introduce and use {pgd,p4d}_populate_kernel() {CVE-2025-39844}\n- arp: do not assume dev_hard_header() does not change skb-\u003ehead {CVE-2026-22988}\n- Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() {CVE-2026-53357}\n- wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue() {CVE-2025-37795}\n- hwrng: core - Fix page fault dead lock on mmap-ed hwrng {CVE-2023-52615}\n- ceph: fix possible deadlock when holding Fwb to get inline_data {CVE-2022-49296}\n- bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error {CVE-2024-47728}\n- scsi: target: Reset t_task_cdb pointer in error case {CVE-2025-68782}\n- xfrm: Wait for RCU readers during policy netns exit {CVE-2026-43091}\n- SUNRPC: auth_gss: fix memory leaks in XDR decoding error paths {CVE-2026-45870}\n- sched/rt: Skip currently executing CPU in rto_next_cpu() {CVE-2026-45919}\n- md/raid5: fix soft lockup in retry_aligned_read() {CVE-2026-46051}\n- tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func() {CVE-2026-46196}\n- exit: prevent preemption of oopsing TASK_DEAD task {CVE-2026-46173}\n- netfilter: ipset: stop hash:* range iteration at end {CVE-2026-52921}\n- ipvs: clear the svc scheduler ptr early on edit {CVE-2026-53270}\n- signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads() {CVE-2026-53352}\n- quota: Fix potential NULL pointer dereference {CVE-2024-26878}\n- net/mlx5e: xsk: Fix DMA and xdp_frame leak on XDP_TX xmit failure {CVE-2026-53229}\n- udp: clear skb-\u003edev before running a sockmap verdict {CVE-2026-53184}\n- ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3() {CVE-2026-46146}\n- kasan: remove kasan_find_vm_area() to prevent possible deadlock {CVE-2025-38510}\n- Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds {CVE-2026-68391}\n- net: qrtr: restrict socket creation to the initial network namespace {CVE-2026-68294}\n- bonding: fix devconf_all NULL dereference when IPv6 is disabled {CVE-2026-68336}\n- slip: bound decode() reads against the compressed packet length {CVE-2026-45843}\n- netfilter: nf_set_pipapo_avx2: fix initial map fill {CVE-2025-38120}\n- APEI/GHES: ARM processor Error: don't go past allocated memory {CVE-2026-43201}\n- netfilter: nf_tables: unconditionally bump set-\u003enelems before insertion {CVE-2026-23272}\n- usb: typec: ucsi: Fix NULL pointer access {CVE-2025-21918}\n- futex: Prevent use-after-free during requeue-PI {CVE-2025-39977}\n- drm/i915: Fix potential UAF in TTM object purge {CVE-2026-63884}\n- KVM: nSVM: mark VMCB_LBR dirty at svm_{enable,disable}_lbrv copy sites {CVE-2026-46071}\n- ipv6: fix possible infinite loop in fib6_select_path() {CVE-2026-63968}\n- ipv6: fix possible infinite loop in fib6_info_uses_dev() {CVE-2025-38587}\n- wifi: cfg80211: fix link del callback to call correct handler {CVE-2024-57898}\n- drm/vmwgfx: drop the hash entry when adding a buffer object fails {CVE-2025-40111}\n- sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT {CVE-2026-64374}\n- posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path {CVE-2026-64370}\n- netfilter: ebtables: module names must be null-terminated {CVE-2026-64412}\n- Bluetooth: bnep: pin L2CAP connection during netdev registration {CVE-2026-64408}\n- netfilter: ebtables: terminate table name before find_table_lock() {CVE-2026-64411}\n- Bluetooth: L2CAP: validate option length before reading conf opt value {CVE-2026-64403}\n- net: af_key: initialize alg_key_len for IPComp states {CVE-2026-64436}\n- tipc: fix out-of-bounds read in broadcast Gap ACK blocks {CVE-2026-64450}\n- audit: Fix data races of skb_queue_len() readers on audit_queue {CVE-2026-64435}\n- USB: serial: keyspan_pda: fix information leak {CVE-2026-64336}\n- USB: serial: digi_acceleport: fix broken rx after throttle {CVE-2026-64335}\n- USB: serial: digi_acceleport: fix hard lockup on disconnect {CVE-2026-64334}\n- isofs: bound Rock Ridge symlink components to the SL record {CVE-2026-64317}\n- crypto: ecc - Fix carry overflow in vli multiplication {CVE-2026-64313}\n- crypto: drbg - Fix returning success on failure in CTR_DRBG {CVE-2026-64306}\n- tracing: Prevent out-of-bounds read in glob matching {CVE-2026-64299}\n- smb: client: Fix next buffer leak in receive_encrypted_standard() {CVE-2026-64381}\n- smb: client: harden POSIX SID length parsing {CVE-2026-64380}\n- proc: protect ptrace_may_access() with exec_update_lock (FD links) {CVE-2026-64375}\n- netfilter: nf_tables: release batch on table validation from abort path\n- Bluetooth: SCO: fix sleeping under spinlock in sco_conn_ready\n- padata: Reset next CPU when reorder sequence wraps around\n- padata: remove __padata_list_init()\n- usb: free iso schedules on failed submit {CVE-2026-64348}\n- usb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove {CVE-2026-64329}\n- udf: validate VAT header length against the VAT inode size {CVE-2026-64323}\n- udf: validate sparing table length as an entry count, not a byte count {CVE-2026-64322}\n- bpf: Allow LPM map access from sleepable BPF programs {CVE-2026-64352}\n- bpf: Consistently use bpf_rcu_lock_held() everywhere {CVE-2026-64352}\n- vhost: reset the vring metadata cache on vring reconfiguration {CVE-2026-74580}\n- smb: client: restrict implied bcc[0] exemption to responses without data area {CVE-2026-64448}\n- crypto: qat - protect service table iterations with service_lock {CVE-2026-64305}\n- crypto: qat - validate RSA CRT component lengths {CVE-2026-64304}\n- spi: fsl-lpspi: terminate the RX channel on TX prepare failure path {CVE-2026-64303}\n- nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page {CVE-2026-64320}\n- bpf, sockmap: Fix sk_redir use-after-free in send verdict {CVE-2026-74589}\n- octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp() {CVE-2025-39944}\n- USB: serial: io_edgeport: cap received transmit credits {CVE-2026-68365}\n- USB: idmouse: fix use-after-free on disconnect race {CVE-2026-64344}\n- USB: iowarrior: fix use-after-free on disconnect race {CVE-2026-64341}\n- USB: legousbtower: fix use-after-free on disconnect race {CVE-2026-64340}\n- can: isotp: fix use-after-free race with concurrent NETDEV_UNREGISTER {CVE-2026-72125}\n- can: isotp: use unconditional synchronize_rcu() in isotp_release() {CVE-2026-72126}\n- drm/amdgpu: reject oversized IBs with per-ring packet limits {CVE-2026-80576}\n- ipvs: clear IPv4 options after rebasing tunnel ICMP errors {CVE-2026-74669}\n- xfs: bounds-check buffer log item's dirty bitmap {CVE-2026-80536}\n- enic: fix tx_hang_reset use-after-free on device removal {CVE-2026-74725}\n- net/sched: cls_api: Always acquire rtnl_lock when destroying locked classifiers {CVE-2026-74700}\n- net/sched: act_ct: fix sk_buff leak when the header checks reject a packet {CVE-2026-74621}\n- net: gro: properly validate BIG TCP aggregation criteria {CVE-2026-80725}\n- mm/ptdump: always stabilise against page table freeing using init_mm {CVE-2026-74599}\n- mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF {CVE-2026-74672}\n- sctp: validate cookie AUTH state before use {CVE-2026-74752}\n- sctp: keep chunk-\u003etransport in step with the list it is queued on {CVE-2026-74588}\n- sctp: fix use-after-free of cached ASCONF chunk {CVE-2026-74587}\n- packet: use consistent hard_header_len in non-ring send paths {CVE-2026-74582}\n- tracing: Fix reading strings from synthetic events {CVE-2022-50255}\n- tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails {CVE-2022-50255}\n- tracing/probes: Fix to update dynamic data counter if fetcharg uses it {CVE-2022-50255}\n- tracing: Add FAULT_STRING macro to trace.h {CVE-2022-50255}\n- tracing: Move duplicate code of trace_kprobe/eprobe.c into header {CVE-2022-50255}\n- scsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write {CVE-2026-74470}\n- drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib {CVE-2026-31566}\n- scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer {CVE-2026-74556}\n- bridge: stp: Fix a potential use-after-free when deleting a bridge {CVE-2026-72389}\n- mpls: reload header after pskb_may_pull() {CVE-2026-89555}\n- rhashtable: clear stale iter-\u003ep on table restart {CVE-2026-64563}\n- usb: typec: tcpm: Validate SVID index in svdm_consume_modes() {CVE-2026-64330}\n- bpf: Reject fragmented frames in devmap {CVE-2026-64355}\n- net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes {CVE-2026-64422}\n- ipv4: igmp: remove multicast group from hash table on device destruction {CVE-2026-64423}\n- tipc: read le-\u003elink under the node lock in tipc_node_link_down() {CVE-2026-74609}\n- bpf: Preserve pointer state for commuted arithmetic {CVE-2026-74720}\n- treewide: fix cosmetic build warnings introduced by recent backports {CVE-2026-23110}\n- drm/ttm: fix warning that we shouldn't mix \u0026\u0026 and ||\n- mm/mmap: call hugetlb_split() under the i_mmap rwsem {CVE-2025-38084}\n- ipv4: fix use-after-free in fib_nhc_update_mtu() {CVE-2026-74656}\n- netfilter: nf_tables: make nft_object rhltable per table {CVE-2026-74565}\n- ip6_tunnel: clear skb2-\u003ecb[] in ip6ip6_err() {CVE-2026-74597}\n- Revert \"thermal/drivers/hwmon: Cleanup coding style a bit\" {CVE-2026-74604}\n- ipv6: prevent in6_dev_get() from resurrecting inet6_dev {CVE-2026-74630}\n- ALSA: usx2y: bound the hwdep mmap fault offset {CVE-2026-74641}\n- sctp: fix auth_hmacs array size in struct sctp_cookie {CVE-2026-68376}\n- ALSA: seq: close a re-opened queue timer in the destructor {CVE-2026-68202}\n- net/packet: reset the MAC header on the packet-socket transmit path {CVE-2026-74667}\n- ALSA: usb-audio: fix OOB write on Type II inbound URBs {CVE-2026-74682}\n- NFSv4: nfs4_do_open() is incorrectly triggering state recovery {CVE-2026-72472}\n- nfs: use nfsi-\u003erwsem to protect traversal of the file lock list {CVE-2026-72472}\n- sctp: clear control chunk transport if it is being removed {CVE-2026-74688}\n- ipvlan: inherit needed_headroom and needed_tailroom from phy_dev {CVE-2026-74744}\n- netfilter: flowtable: publish GC-visible tuple last {CVE-2026-74746}\n- netfilter: ebt_nflog: pin the NFLOG backend {CVE-2026-74660}\n- net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter {CVE-2026-74704}\n- udp: fix potential use-after-free in tunnel segmentation {CVE-2026-74705}\n- libceph: Avoid using invalid osd indices from primary_temp {CVE-2026-80558}","status":"published","published":"2026-09-21T19:06:09Z","modified":"2026-10-26T09:43:51.202933125Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CVE-2023-52982","title":"fscache: Use wait_on_bit() to wait for the freeing of relinquished volume","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfscache: Use wait_on_bit() to wait for the freeing of relinquished volume\n\nThe freeing of relinquished volume will wake up the pending volume\nacquisition by using wake_up_bit(), however it is mismatched with\nwait_var_event() used in fscache_wait_on_volume_collision() and it will\nnever wake up the waiter in the wait-queue because these two functions\noperate on different wait-queues.\n\nAccording to the implementation in fscache_wait_on_volume_collision(),\nif the wake-up of pending acquisition is delayed longer than 20 seconds\n(e.g., due to the delay of on-demand fd closing), the first\nwait_var_event_timeout() will timeout and the following wait_var_event()\nwill hang forever as shown below:\n\n FS-Cache: Potential volume collision new=00000024 old=00000022\n ......\n INFO: task mount:1148 blocked for more than 122 seconds.\n       Not tainted 6.1.0-rc6+ #1\n task:mount           state:D stack:0     pid:1148  ppid:1\n Call Trace:\n  \u003cTASK\u003e\n  __schedule+0x2f6/0xb80\n  schedule+0x67/0xe0\n  fscache_wait_on_volume_collision.cold+0x80/0x82\n  __fscache_acquire_volume+0x40d/0x4e0\n  erofs_fscache_register_volume+0x51/0xe0 [erofs]\n  erofs_fscache_register_fs+0x19c/0x240 [erofs]\n  erofs_fc_fill_super+0x746/0xaf0 [erofs]\n  vfs_get_super+0x7d/0x100\n  get_tree_nodev+0x16/0x20\n  erofs_fc_get_tree+0x20/0x30 [erofs]\n  vfs_get_tree+0x24/0xb0\n  path_mount+0x2fa/0xa90\n  do_mount+0x7c/0xa0\n  __x64_sys_mount+0x8b/0xe0\n  do_syscall_64+0x30/0x60\n  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nConsidering that wake_up_bit() is more selective, so fix it by using\nwait_on_bit() instead of wait_var_event() to wait for the freeing of\nrelinquished volume. In addition because waitqueue_active() is used in\nwake_up_bit() and clear_bit() doesn't imply any memory barrier, use\nclear_and_wake_up_bit() to add the missing memory barrier between\ncursor-\u003eflags and waitqueue_active().","status":"published","published":"2025-03-27T16:43:20.735Z","modified":"2026-11-07T02:31:02.89621798Z","updated_at":"2026-11-07T03:05:28.577678Z"},{"id":"SUSE-SU-2025:01620-1","title":"Security update for the Linux Kernel","description":"The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2022-48933: netfilter: nf_tables: fix memory leak during stateful obj update (bsc#1229621).\n- CVE-2022-49110: netfilter: conntrack: revisit gc autotuning (bsc#1237981).\n- CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (bsc#1238032).\n- CVE-2022-49767: 9p/trans_fd: always use O_NONBLOCK read/write (bsc#1242493).\n- CVE-2024-46763: fou: Fix null-ptr-deref in GRO (bsc#1230764).\n- CVE-2024-50038: netfilter: xtables: avoid NFPROTO_UNSPEC where needed (bsc#1231910).\n- CVE-2025-21726: padata: avoid UAF for reorder_work (bsc#1238865).\n- CVE-2025-21785: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array (bsc#1238747).\n- CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1238512).\n- CVE-2025-21812: ax25: rcu protect dev-\u003eax25_ptr (bsc#1238471).\n- CVE-2025-21839: KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop (bsc#1239061).\n- CVE-2025-22004: net: atm: fix use after free in lec_send() (bsc#1240835).\n- CVE-2025-22020: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (bsc#1241280).\n- CVE-2025-22045: x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs (bsc#1241433).\n- CVE-2025-22055: net: fix geneve_opt length integer overflow (bsc#1241371).\n- CVE-2025-22097: drm/vkms: Fix use after free and double free on init error (bsc#1241541).\n- CVE-2025-2312: CIFS: New mount option for cifs.upcall namespace resolution (bsc#1239684).\n- CVE-2025-23138: watch_queue: fix pipe accounting mismatch (bsc#1241648).\n- CVE-2025-39735: jfs: fix slab-out-of-bounds read in ea_get() (bsc#1241625).\n\nThe following non-security bugs were fixed:\n\n- cpufreq: ACPI: Mark boost policy as enabled when setting boost (bsc#1236777).\n- cpufreq: Allow drivers to advertise boost enabled (bsc#1236777).\n- cpufreq: Fix per-policy boost behavior on SoCs using cpufreq_boost_set_sw() (bsc#1236777).\n- cpufreq: Support per-policy performance boost (bsc#1236777).\n- x86/bhi: Do not set BHI_DIS_S in 32-bit mode (bsc#1242778).\n- x86/bpf: Add IBHF call at end of classic BPF (bsc#1242778).\n- x86/bpf: Call branch history clearing sequence on exit (bsc#1242778).\n","status":"published","published":"2025-05-21T09:58:56Z","modified":"2026-03-23T04:46:18.263261Z","updated_at":"2026-11-02T15:53:56.123059Z"},{"id":"SUSE-SU-2025:01640-1","title":"Security update for the Linux Kernel","description":"The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2022-48933: netfilter: nf_tables: fix memory leak during stateful obj update (bsc#1229621).\n- CVE-2022-49110: netfilter: conntrack: revisit gc autotuning (bsc#1237981).\n- CVE-2022-49139: Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt (bsc#1238032).\n- CVE-2022-49767: 9p/trans_fd: always use O_NONBLOCK read/write (bsc#1242493).\n- CVE-2024-46763: fou: Fix null-ptr-deref in GRO (bsc#1230764).\n- CVE-2024-50038: netfilter: xtables: avoid NFPROTO_UNSPEC where needed (bsc#1231910).\n- CVE-2025-21726: padata: avoid UAF for reorder_work (bsc#1238865).\n- CVE-2025-21785: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array (bsc#1238747).\n- CVE-2025-21791: vrf: use RCU protection in l3mdev_l3_out() (bsc#1238512).\n- CVE-2025-21812: ax25: rcu protect dev-\u003eax25_ptr (bsc#1238471).\n- CVE-2025-21839: KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop (bsc#1239061).\n- CVE-2025-22004: net: atm: fix use after free in lec_send() (bsc#1240835).\n- CVE-2025-22020: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (bsc#1241280).\n- CVE-2025-22045: x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs (bsc#1241433).\n- CVE-2025-22055: net: fix geneve_opt length integer overflow (bsc#1241371).\n- CVE-2025-22097: drm/vkms: Fix use after free and double free on init error (bsc#1241541).\n- CVE-2025-2312: CIFS: New mount option for cifs.upcall namespace resolution (bsc#1239684).\n- CVE-2025-23138: watch_queue: fix pipe accounting mismatch (bsc#1241648).\n- CVE-2025-39735: jfs: fix slab-out-of-bounds read in ea_get() (bsc#1241625).\n\nThe following non-security bugs were fixed:\n\n- cpufreq: ACPI: Mark boost policy as enabled when setting boost (bsc#1236777).\n- cpufreq: Allow drivers to advertise boost enabled (bsc#1236777).\n- cpufreq: Fix per-policy boost behavior on SoCs using cpufreq_boost_set_sw() (bsc#1236777).\n- cpufreq: Support per-policy performance boost (bsc#1236777).\n- x86/bhi: Do not set BHI_DIS_S in 32-bit mode (bsc#1242778).\n- x86/bpf: Add IBHF call at end of classic BPF (bsc#1242778).\n- x86/bpf: Call branch history clearing sequence on exit (bsc#1242778).\n","status":"published","published":"2025-05-21T11:52:08Z","modified":"2026-03-23T04:48:26.23299Z","updated_at":"2026-11-02T15:53:56.123059Z"}]}}