kernel: mm/slub: add missing TID updates on slab deactivation

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...

DEBIAN-CVE-2021-47466

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47466

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47466

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47470

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential use-after-free in slabdebugfsfops When sysfsslabadd failed, we shouldn't call debugfsslabadd for s because s will be freed soon. And slabdebugfsfops will use s later leading to a use-after-free...

UBUNTU-CVE-2021-47466

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47470 mm, slub: fix potential use-after-free in slab_debugfs_fops

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential use-after-free in slabdebugfsfops When sysfsslabadd failed, we shouldn't call debugfsslabadd for s because s will be freed soon. And slabdebugfsfops will use s later leading to a use-after-free...

CVE-2021-47466 mm, slub: fix potential memoryleak in kmem_cache_open()

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47466 mm, slub: fix potential memoryleak in kmem_cache_open()

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2021-47466

The CVE-2021-47466 issue concerns the Linux kernel SLUB allocator: in kmem_cache_open(), an error-path could leak random_seq data from the slub cache. The fix releases all relevant resources via __kmem_cache_release(), mitigating potential memory leakage. Affected advisories (e.g., Unity Linux UT...

CVE-2021-47470: Use After Free

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential use-after-free in slabdebugfsfops When sysfsslabadd failed, we shouldn't call debugfsslabadd for s because s will be freed soon. And slabdebugfsfops will use s later leading to a use-after-free...

CVE-2021-47466: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential memoryleak in kmemcacheopen In error path, the randomseq of slub cache might be leaked. Fix this by using kmemcacherelease to release all the relevant resources...

CVE-2023-52701 net: use a bounce buffer for copying skb->mark

In the Linux kernel, the following vulnerability has been resolved: net: use a bounce buffer for copying skb-mark syzbot found arm64 builds would crash in sockrecvmark when CONFIGHARDENEDUSERCOPY=y x86 and powerpc are not detecting the issue because they define useraccessbegin. This will be handl...

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

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...

DEBIAN-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...

UBUNTU-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

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...