CVE-2021-47221 mm/slub: actually fix freelist pointer vs redzoning

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 mm/slub: actually fix freelist pointer vs redzoning

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

CVE-2021-47221 (Linux kernel SLUB redzone issue) The provided sources describe a vulnerability in the SLUB allocator where redzones are checked against s->object_size rather than the in-use size. If a cache is created with an object size less than 24, the freelist pointer may be written beyond...

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...

SUSE CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

SUSE CVE-2022-48658

In the Linux kernel, the following vulnerability has been resolved: mm: slub: fix flushcpuslab/freeslab invocations in task context. Commit 5a836bf6b09f "mm: slub: move flushcpuslab invocations freeslab invocations out of IRQ context" moved all flushcpuslab invocations to the global workqueue to...

CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

DEBIAN-CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

DEBIAN-CVE-2022-48658

In the Linux kernel, the following vulnerability has been resolved: mm: slub: fix flushcpuslab/freeslab invocations in task context. Commit 5a836bf6b09f "mm: slub: move flushcpuslab invocations freeslab invocations out of IRQ context" moved all flushcpuslab invocations to the global workqueue to...

CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

UBUNTU-CVE-2022-48658

In the Linux kernel, the following vulnerability has been resolved: mm: slub: fix flushcpuslab/freeslab invocations in task context. Commit 5a836bf6b09f "mm: slub: move flushcpuslab invocations freeslab invocations out of IRQ context" moved all flushcpuslab invocations to the global workqueue to...

UBUNTU-CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

UBUNTU-CVE-2022-48649

In the Linux kernel, the following vulnerability has been resolved: mm/slabcommon: fix possible double free of kmemcache When doing slubdebug test, kfence's 'testmemcachetypesafebyrcu' kunit test case cause a use-after-free error: BUG: KASAN: use-after-free in kobjectdel+0x14/0x30 Read of size 8 ...

CVE-2022-48659 mm/slub: fix to return errno if kmalloc() fails

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

CVE-2022-48659 mm/slub: fix to return errno if kmalloc() fails

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

CVE-2022-48659 mm/slub: fix to return errno if kmalloc() fails

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

CVE-2022-48659

CVE-2022-48659 is a Linux kernel issue localized to mm/slub where kmalloc() can fail with an OOM, and the fix ensures create_unique_id() returns a proper errno instead of triggering BUG_ON(). The result is a kernel BUG at mm/slub.c:5893 in the failing path, with the stack showing sysfs_slab_add →...

CVE-2022-48659

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc fails In createuniqueid, kmalloc, GFPKERNEL can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUGON; kernel BUG at mm/slub.c:5893! Internal...

CVE-2022-48658

CVE-2022-48658 affects the Linux kernel:mm/slub: flush_cpu_slab()/__free_slab() invocations were moved out of IRQ context into a global workqueue. When flush_all_cpu_locked() runs from task context, a WQ_MEM_RECLAIM-enabled workqueue may flush the global workqueue, causing a dependency issue duri...