CVE-2023-53224

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix function prototype mismatch for ext4_feat_ktype With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. ext4_feat_ktype was setting the "release" handler to "kfree", which doesn't have a matching function prototype. Add a simple wrapper with the correct prototype. This was found as a result of Clang's new -Wcast-function-type-strict flag, which is more sensitive than the simpler -Wcast-function-type, which only checks for type width mismatches. Note that this code is only reached when ext4 is a loadable module and it is being unloaded: CFI failure at kobject_put+0xbb/0x1b0 (target: kfree+0x0/0x180; expected type: 0x7c4aa698) ... RIP: 0010:kobject_put+0xbb/0x1b0 ... Call Trace: <TASK> ext4_exit_sysfs+0x14/0x60 [ext4] cleanup_module+0x67/0xedb [ext4]

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux SIG Cloud 8.10 Release Notes linked from the References section.

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix function prototype mismatch for ext4_feat_ktype With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. ext4_feat_ktype was setting the "release" handler to "kfree", which doesn't have a matching function prototype. Add a simple wrapper with the correct prototype. This was found as a result of Clang's new -Wcast-function-type-strict flag, which is more sensitive than the simpler -Wcast-function-type, which only checks for type width mismatches. Note that this code is only reached when ext4 is a loadable module and it is being unloaded: CFI failure at kobject_put+0xbb/0x1b0 (target: kfree+0x0/0x180; expected type: 0x7c4aa698) ... RIP: 0010:kobject_put+0xbb/0x1b0 ... Call Trace: <TASK> ext4_exit_sysfs+0x14/0x60 [ext4] cleanup_module+0x67/0xedb [ext4]

• locking/ww_mutex/test: Fix potential workqueue corruption {CVE-2023-52836}
• netfilter: ipset: Fix suspicious rcu_dereference_protected() {CVE-2024-40993}
• netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type {CVE-2024-39503}
• netfilter: ipset: Missing gc cancellations fixed {CVE-2024-39503}
• netfilter: ipset: Add list flush to cancel_gc {CVE-2024-39503}
• netfilter: ipset: fix performance regression in swap operation {CVE-2024-26910}
• netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test {CVE-2024-26910}
• scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() {CVE-2023-53521}
• scsi: mpt3sas: Fix a memory leak {CVE-2023-53512}
• scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param() {CVE-2023-53464}
• wifi: ath11k: fix deinitialization of firmware resources {CVE-2023-53532}
• mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2() {CVE-2022-50464}
• ionic: catch failure from devlink_alloc {CVE-2023-53470}
• enic: Validate length of nl attributes in enic_set_vf_port {CVE-2024-38659}
• gpiolib: cdev: fix uninitialised kfifo {CVE-2024-36898}
• Bluetooth: hci_conn: Fix crash on hci_create_cis_sync {CVE-2022-50447}
• net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP {CVE-2024-36974}
• ext4: Fix function prototype mismatch for ext4_feat_ktype {CVE-2023-53224}
• ipv6: Add lwtunnel encap size of all siblings in nexthop calculation {CVE-2023-53477}
• netfilter: nf_tables: prefer nft_chain_validate {CVE-2024-41042}
• netfilter: nf_conntrack: fix crash due to removal of uninitialised entry {CVE-2025-38472}
• Bluetooth: qca: add missing firmware sanity checks {CVE-2024-36880}
• Bluetooth: qca: fix info leak when fetching fw build id {CVE-2024-36032}
• Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp {CVE-2023-53297}
• drm/amd/display: Skip finding free audio for unknown engine_id {CVE-2024-42119}
• drm/dp_mst: Fix resetting msg rx state after topology removal {CVE-2024-57876}
• drm/vc4: don't check if plane->state->fb == state->fb {CVE-2024-35932}
• drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create {CVE-2023-53263}
• cifs: fix oops during encryption {CVE-2022-50341}
• smb: client: fix use-after-free in cifs_oplock_break {CVE-2025-38527}
• smb: client: fix race with concurrent opens in rename(2) {CVE-2025-39825}
• ASoC: Intel: sof_sdw_rt_sdca_jack_common: ctx->headset_codec_dev = NULL {CVE-2023-52697}
• blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none {CVE-2023-53292}
• mlx5: fix possible ptp queue fifo use-after-free {CVE-2023-53398}
• sctp: check send stream number after wait_for_sndbuf {CVE-2023-53296}
• sctp: linearize cloned gso packets in sctp_rcv {CVE-2025-38718}
• ip6mr: Fix skb_under_panic in ip6mr_cache_report() {CVE-2023-53365}
• scsi: mpi3mr: Use number of bits to manage bitmap sizes {CVE-2023-53376}
• scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue {CVE-2023-53280}
• mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data {CVE-2023-53232}
• wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes {CVE-2023-53185}
• fbdev: Fix invalid page access after closing deferred I/O devices {CVE-2023-52731}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value {CVE-2022-50327}
• media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() {CVE-2023-53220}
• media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer() {CVE-2022-50272}