CVE-2022-50091

In the Linux kernel, the following vulnerability has been resolved: locking/csd_lock: Change csdlock_debug from early_param to __setup The csdlock_debug kernel-boot parameter is parsed by the early_param() function csdlock_debug(). If set, csdlock_debug() invokes static_branch_enable() to enable csd_lock_wait feature, which triggers a panic on arm64 for kernels built with CONFIG_SPARSEMEM=y and CONFIG_SPARSEMEM_VMEMMAP=n. With CONFIG_SPARSEMEM_VMEMMAP=n, __nr_to_section is called in static_key_enable() and returns NULL, resulting in a NULL dereference because mem_section is initialized only later in sparse_init(). This is also a problem for powerpc because early_param() functions are invoked earlier than jump_label_init(), also resulting in static_key_enable() failures. These failures cause the warning "static key 'xxx' used before call to jump_label_init()". Thus, early_param is too early for csd_lock_wait to run static_branch_enable(), so changes it to __setup to fix these.

• net_sched: hfsc: Fix a UAF vulnerability in class handling {CVE-2025-37797}
• sunrpc: handle SVC_GARBAGE during svc auth processing as auth error {CVE-2025-38089}
• net: ch9200: fix uninitialised access during mii_nway_restart {CVE-2025-38086}
• ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() {CVE-2025-22121}
• locking/csd_lock: Change csdlock_debug from early_param to __setup {CVE-2022-50091}
• x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes {CVE-2025-21991}
• ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead {CVE-2022-49977}
• NFSv4/pnfs: Fix a use-after-free bug in open {CVE-2022-50072}
• NFSv4: Don't hold the layoutget locks across multiple RPC calls {CVE-2022-49316}
• mm/khugepaged: fix ->anon_vma race {CVE-2023-52935}

In the Linux kernel, the following vulnerability has been resolved:

locking/csd_lock: Change csdlock_debug from early_param to __setup

The csdlock_debug kernel-boot parameter is parsed by the early_param() function csdlock_debug(). If set, csdlock_debug() invokes static_branch_enable() to enable csd_lock_wait feature, which triggers a panic on arm64 for kernels built with CONFIG_SPARSEMEM=y and CONFIG_SPARSEMEM_VMEMMAP=n.

With CONFIG_SPARSEMEM_VMEMMAP=n, __nr_to_section is called in static_key_enable() and returns NULL, resulting in a NULL dereference because mem_section is initialized only later in sparse_init().

This is also a problem for powerpc because early_param() functions are invoked earlier than jump_label_init(), also resulting in static_key_enable() failures. These failures cause the warning "static key 'xxx' used before call to jump_label_init()".

Thus, early_param is too early for csd_lock_wait to run static_branch_enable(), so changes it to __setup to fix these.

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-50085: dm raid: fix address sanitizer warning in raid_resume (bsc#1245147).
• CVE-2022-50087: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (bsc#1245119).
• CVE-2022-50200: selinux: Add boundary check in put_entry() (bsc#1245149).
• CVE-2024-26924: scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() (bsc#1225820).
• CVE-2024-27397: kabi: place tstamp needed for nftables set in a hole (bsc#1224095).
• CVE-2024-36978: net: sched: sch_multiq: fix possible OOB write in multiq_tune() (bsc#1226514).
• CVE-2024-46800: sch/netem: fix use after free in netem_dequeue (bsc#1230827).
• CVE-2024-53141: netfilter: ipset: add missing range check in bitmap_ip_uadt (bsc#1234381).
• CVE-2024-56770: sch/netem: fix use after free in netem_dequeue (bsc#1235637).
• CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
• CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1237312).
• CVE-2025-21703: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() (bsc#1237313).
• CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1242504).
• CVE-2025-37823: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (bsc#1242924).
• CVE-2025-37890: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (bsc#1243330).
• CVE-2025-37997: netfilter: ipset: fix region locking in hash types (bsc#1243832).
• CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (bsc#1244277).
• CVE-2025-38001: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (bsc#1244234).
• CVE-2025-38083: net_sched: prio: fix a race in prio_tune() (bsc#1245183).

The following non-security bugs were fixed:

• Fix conditional for selecting gcc-13 Fixes: 51dacec21eb1 ('Use gcc-13 for build on SLE16 (jsc#PED-10028).')
• MyBS: Correctly generate build flags for non-multibuild package limit (bsc# 1244241) Fixes: 0999112774fc ('MyBS: Use buildflags to set which package to build')
• MyBS: Do not build kernel-obs-qa with limit_packages Fixes: 58e3f8c34b2b ('bs-upload-kernel: Pass limit_packages also on multibuild')
• MyBS: Simplify qa_expr generation Start with a 0 which makes the expression valid even if there are no QA repositories (currently does not happen). Then separator is always needed.
• Require zstd in kernel-default-devel when module compression is zstd To use ksym-provides tool modules need to be uncompressed. Without zstd at least kernel-default-base does not have provides. Link: https://github.com/openSUSE/rpm-config-SUSE/pull/82
• Test the correct macro to detect RT kernel build Fixes: 470cd1a41502 ('kernel-binary: Support livepatch_rt with merged RT branch')
• Use gcc-13 for build on SLE16 (jsc#PED-10028).
• add nf_tables for iptables non-legacy network handling This is needed for example by docker on the Alpine Linux distribution, but can also be used on openSUSE.
• bs-upload-kernel: Pass limit_packages also on multibuild Fixes: 0999112774fc ('MyBS: Use buildflags to set which package to build') Fixes: 747f601d4156 ('bs-upload-kernel, MyBS, Buildresults: Support multibuild (JSC-SLE#5501, boo#1211226, bsc#1218184)')
• check-for-config-changes: Fix flag name typo
• drop ax25 drivers (bsc#1238471).
• drop hamradio drivers (bsc#1238471).
• drop netrom drivers (bsc#1238471).
• drop rose drivers (bsc#1238471).
• kabi/severities: workaround kABI checker complains after AX25 and HAMRADIO removals KABI: symbol asc2ax(mod:net/ax25/ax25) lost KABI: symbol ax25_bcast(mod:net/ax25/ax25) lost KABI: symbol ax25_defaddr(mod:net/ax25/ax25) lost KABI: symbol ax25_display_timer(mod:net/ax25/ax25) lost KABI: symbol ax25_find_cb(mod:net/ax25/ax25) lost KABI: symbol ax25_findbyuid(mod:net/ax25/ax25) lost KABI: symbol ax25_header_ops(mod:net/ax25/ax25) lost…

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-50085: dm raid: fix address sanitizer warning in raid_resume (bsc#1245147).
• CVE-2022-50087: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (bsc#1245119).
• CVE-2022-50200: selinux: Add boundary check in put_entry() (bsc#1245149).
• CVE-2024-26924: scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up() (bsc#1225820).
• CVE-2024-27397: kabi: place tstamp needed for nftables set in a hole (bsc#1224095).
• CVE-2024-36978: net: sched: sch_multiq: fix possible OOB write in multiq_tune() (bsc#1226514).
• CVE-2024-46800: sch/netem: fix use after free in netem_dequeue (bsc#1230827).
• CVE-2024-53141: netfilter: ipset: add missing range check in bitmap_ip_uadt (bsc#1234381).
• CVE-2024-56770: sch/netem: fix use after free in netem_dequeue (bsc#1235637).
• CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
• CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1237312).
• CVE-2025-21703: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() (bsc#1237313).
• CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1242504).
• CVE-2025-37823: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (bsc#1242924).
• CVE-2025-37890: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (bsc#1243330).
• CVE-2025-37997: netfilter: ipset: fix region locking in hash types (bsc#1243832).
• CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (bsc#1244277).
• CVE-2025-38001: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (bsc#1244234).
• CVE-2025-38083: net_sched: prio: fix a race in prio_tune() (bsc#1245183).

The following non-security bugs were fixed:

• net_sched: sch_fifo: implement lockless __fifo_dump() (bsc#1237312)
• net_sched: sch_sfq: use a temporary work area for validating configuration (bsc#1232504)
• scsi: storvsc: Do not report the host packet status as the hv status (git-fixes).
• scsi: storvsc: Increase the timeouts to storvsc_timeout (bsc#1245455).
• wifi: cfg80211: Add my certificate (bsc#1243001).
• wifi: cfg80211: fix certs build to not depend on file order (bsc#1243001).

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47212: net/mlx5: Update error handler for UCTX and UMEM (bsc#1222709).
• CVE-2021-47455: ptp: Fix possible memory leak in ptp_clock_register() (bsc#1225254).
• CVE-2021-47527: serial: core: fix transmit-buffer reset and memleak (bsc#1227768).
• CVE-2022-21546: scsi: target: Fix WRITE_SAME No Data Buffer crash (bsc#1242243).
• CVE-2022-49154: KVM: SVM: fix panic on out-of-bounds guest IRQ (bsc#1238167).
• CVE-2022-49622: netfilter: nf_tables: fix crash when nf_trace is enabled (bsc#1239042).
• CVE-2022-49731: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() (bsc#1239071).
• CVE-2022-49764: kABI: workaround 'bpf: Prevent bpf program recursion for raw tracepoint probes' changes (bsc#1242301).
• CVE-2022-49780: scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() (bsc#1242262).
• CVE-2022-49814: kcm: close race conditions on sk_receive_queue (bsc#1242498).
• CVE-2022-49879: ext4: fix BUG_ON() when directory entry has invalid rec_len (bsc#1242733).
• CVE-2022-49881: wifi: cfg80211: fix memory leak in query_regdb_file() (bsc#1242481).
• CVE-2022-49917: ipvs: fix WARNING in ip_vs_app_net_cleanup() (bsc#1242406).
• CVE-2022-49921: net: sched: Fix use after free in red_enqueue() (bsc#1242359).
• CVE-2022-50055: iavf: Fix adminq error handling (bsc#1245039).
• CVE-2022-50087: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (bsc#1245119).
• CVE-2022-50134: RDMA/hfi1: fix potential memory leak in setup_base_ctxt() (bsc#1244802).
• CVE-2022-50200: selinux: Add boundary check in put_entry() (bsc#1245149).
• CVE-2023-52500: Fixed information leaking when processing OPC_INB_SET_CONTROLLER_CONFIG command (bsc#1220883).
• CVE-2023-52927: netfilter: allow exp not to be removed in nf_ct_find_expectation (bsc#1239644).
• CVE-2023-53020: l2tp: fix lockdep splat (bsc#1240224).
• CVE-2023-53090: drm/amdkfd: Fix an illegal memory access (bsc#1242753).
• CVE-2023-53091: ext4: update s_journal_inum if it changes after journal replay (bsc#1242767).
• CVE-2023-53133: bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser() (bsc#1242423).
• CVE-2024-26586: mlxsw: spectrum_acl_tcam: Fix stack corruption (bsc#1220243).
• CVE-2024-26825: nfc: nci: free rx_data_reassembly skb on NCI device cleanup (bsc#1223065).
• CVE-2024-26872: RDMA/srpt: Do not register event handler until srpt device is fully setup (bsc#1223115).
• CVE-2024-26875: media: pvrusb2: fix uaf in pvr2_context_set_notify (bsc#1223118).
• CVE-2024-35790: usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group (bsc#1224712).
• CVE-2024-35839: kABI fix for netfilter: bridge: replace physindev with physinif in nf_bridge_info (bsc#1224726).
• CVE-2024-38588: ftrace: Fix possible use-after-free issue in ftrace_location() (bsc#1226837).
• CVE-2024-57982: xfrm: state: fix out-of-bounds read during lookup (bsc#1237913).
• CVE-2025-21898: ftrace: Avoid potential division by zero in function_stat_show() (bsc#1240610).
• CVE-2025-21920: vlan: enforce underlying device type (bsc#1240686).
• CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT (bsc#1240799).
• CVE-2025-22035: tracing: Fix use-after-free in print_graph_function_flags during tracer switching (bsc#1241544).
• CVE-2025-23149: tpm: do not start chip while suspended (bsc#1242758).
• CVE-2025-37756: net: tls: explicitly disallow disconnect (bsc#1242515).
• CVE-2025-37757: tipc: fix memory leak in tipc_link_xmit (bsc#1242521).
• CVE-2025-37781: i2c: cros-ec-tunnel: defer probe if parent EC is not present (bsc#1242575).
• CVE-2025-37800: driver core: fix potential NULL pointer dereference in dev_uevent() (bsc#1242849).
• CVE-2025-37810: usb: dwc3: gadget: check that event count does not exceed event buffer length (bsc#1242906).
• CVE-2025-37836: PCI: Fix reference…