CVE-2023-52646
Assigner: Linux
Published: 2024-04-26T12:19:32.167Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

aio: fix mremap after fork null-deref

Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced
a null-deref if mremap is called on an old aio mapping after fork as
mm->ioctx_table will be set to NULL.

[jmoyer@redhat.com: fix 80 column issue]
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: e4a0d3e720e7
lessThan: 808f1e4b5723
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: d8dca1bfe9ad
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: 4326d0080f7e
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: c261f798f7ba
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: 178993157e8c
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: af126acf01a1
status: affected
versionType: git
version: e4a0d3e720e7
lessThan: 81e9d6f86476
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 3.19
status: affected
version: 0
lessThan: 3.19
status: unaffected
versionType: custom
version: 4.14.306
lessThanOrEqual: 4.14.*
status: unaffected
versionType: custom
version: 4.19.273
lessThanOrEqual: 4.19.*
status: unaffected
versionType: custom
version: 5.4.232
lessThanOrEqual: 5.4.*
status: unaffected
versionType: custom
version: 5.10.169
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.15.95
lessThanOrEqual: 5.15.*
status: unaffected
versionType: custom
version: 6.1.13
lessThanOrEqual: 6.1.*
status: unaffected
versionType: custom
version: 6.2
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: aio: fix mremap after fork null-deref
x_generator: engine: bippy-d175d3acf727