kernel security, bug fix, and enhancement update

4.18.0-553.155.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

CVE-2025-71110: Use After Free

In the Linux kernel, the following vulnerability has been resolved: mm/slub: reset KASAN tag in deferfree before accessing freed memory When CONFIGSLUBTINY is enabled, kfreenolock calls kasanslabfree before deferfree. On ARM64 with MTE Memory Tagging Extension, kasanslabfree poisons the memory an...

Linux Distros Unpatched Vulnerability : CVE-2025-39902

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/slub: avoid accessing metadata when pointer is invalid in objecterr objecterr reports details of an object for further debugging, such as the freelist pointe...

CVE-2025-39902: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid accessing metadata when pointer is invalid in objecterr objecterr reports details of an object for further debugging, such as the freelist pointer, redzone, etc. However, if the pointer is invalid, attempting to...

CVE-2025-39843: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: mm: slub: avoid wake up kswapd in settrackprepare settrackprepare can incur lock recursion. The issue is that it is called from hrtimerstartrangens holding the percpuhrtimerbasesn.lock, but when enabled CONFIGDEBUGOBJECTSTIMERS,...

CVE-2022-49700: Use After Free

In the Linux kernel, the following vulnerability has been resolved: mm/slub: add missing TID updates on slab deactivation The fastpath in slaballocnode assumes that c-slab is stable as long as the TID stays the same. However, two places in slaballoc currently don't update the TID when deactivatin...

CVE-2024-56566

In the Linux kernel, the following vulnerability has been resolved: mm/slub: Avoid list corruption when removing a slab from the full list Boot with slubdebug=UFPZ. If allocated object failed in allocconsistencychecks, all objects of the slab will be marked as used, and then the slab will be...

CVE-2024-56566: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: mm/slub: Avoid list corruption when removing a slab from the full list Boot with slubdebug=UFPZ. If allocated object failed in allocconsistencychecks, all objects of the slab will be marked as used, and then the slab will be...

CVE-2024-46789

In the Linux kernel, the following vulnerability has been resolved: mm/slub: add check for s-flags in the alloctaggingslabfreehook When enable CONFIGMEMCG & CONFIGKFENCE & CONFIGKMEMLEAK, the following warning always occurs,This is because the following call stack occurred: mempoolalloc...

CVE-2024-46789

In the Linux kernel, the following vulnerability has been resolved: mm/slub: add check for s-flags in the alloctaggingslabfreehook When enable CONFIGMEMCG & CONFIGKFENCE & CONFIGKMEMLEAK, the following warning always occurs,This is because the following call stack occurred: mempoolalloc...

CVE-2024-46789 mm/slub: add check for s->flags in the alloc_tagging_slab_free_hook

In the Linux kernel, the following vulnerability has been resolved: mm/slub: add check for s-flags in the alloctaggingslabfreehook When enable CONFIGMEMCG & CONFIGKFENCE & CONFIGKMEMLEAK, the following warning always occurs,This is because the following call stack occurred: mempoolalloc...

CVE-2024-46789

CVE-2024-46789 (Linux kernel) details from connected documents show a concrete fix: in mm/slub, the tagging logic now checks s->flags in alloc_tagging_slab_free_hook to avoid calling alloc_tag_add when SLAB_NO_OBJ_EXT or SLAB_NOLEAKTRACE are set. This prevents the NULL ref (ref->ct) and the...

CVE-2024-46789: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/slub: add check for s-flags in the alloctaggingslabfreehook When enable CONFIGMEMCG & CONFIGKFENCE & CONFIGKMEMLEAK, the following warning always occurs,This is because the following call stack occurred: mempoolalloc...

The vulnerability of the kmalloc() function in the mm/slub component of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the kmalloc function in the mm/slub component of the Linux operating system is related to a crash due to insufficient memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2024-36892

In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid zeroing outside-object freepointer for single free Commit 284f17ac13fe "mm/slub: handle bulk and single object freeing separately" splits single and bulk object freeing in two functions slabfree and slabfreebulk...

CVE-2024-36892

In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid zeroing outside-object freepointer for single free Commit 284f17ac13fe "mm/slub: handle bulk and single object freeing separately" splits single and bulk object freeing in two functions slabfree and slabfreebulk...

CVE-2024-36892 mm/slub: avoid zeroing outside-object freepointer for single free

In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid zeroing outside-object freepointer for single free Commit 284f17ac13fe "mm/slub: handle bulk and single object freeing separately" splits single and bulk object freeing in two functions slabfree and slabfreebulk...

CVE-2024-36892: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid zeroing outside-object freepointer for single free Commit 284f17ac13fe "mm/slub: handle bulk and single object freeing separately" splits single and bulk object freeing in two functions slabfree and slabfreebulk...

CVE-2021-47221

In the Linux kernel, the following vulnerability has been resolved: mm/slub: actually fix freelist pointer vs redzoning It turns out that SLUB redzoning "slubdebug=Z" checks from s-objectsize rather than from s-inuse which is normally bumped to make room for the freelist pointer, so a cache creat...

CVE-2021-47221: Release of Invalid Pointer or Reference

In the Linux kernel, the following vulnerability has been resolved: mm/slub: actually fix freelist pointer vs redzoning It turns out that SLUB redzoning "slubdebug=Z" checks from s-objectsize rather than from s-inuse which is normally bumped to make room for the freelist pointer, so a cache creat...