CVE-2023-52646

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52646
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52646.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-52646
Downstream
Related
Published
2024-04-26T12:19:32.167Z
Modified
2025-11-27T02:33:03.885687Z
Summary
aio: fix mremap after fork null-deref
Details

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]

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/cc431b3424123d84bcd7afd4de150b33f117a8ef/cves/2023/52xxx/CVE-2023-52646.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
808f1e4b5723ae4eda724d2ad6f6638905eefd95
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
d8dca1bfe9adcae38b35add64977818c0c13dd22
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
4326d0080f7e84fba775da41d158f46cf9d3f1c2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
c261f798f7baa8080cf0214081d43d5f86bb073f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
178993157e8c50aef7f35d7d6d3b44bb428199e1
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
af126acf01a12bdb04986fd26fc2eb3b40249e0d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e4a0d3e720e7e508749c1439b5ba3aff56c92976
Fixed
81e9d6f8647650a7bead74c5f926e29970e834d1

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.19.0
Fixed
4.14.306
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.273
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.232
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.169
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.95
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.13