CVE-2022-49641
published 2025-02-26CVE-2022-49641: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and…
PriorityP415medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.17%
7.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec().
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE()
internally to fix data-races on the sysctl side. For now, proc_douintvec()
itself is tolerant to a data-race, but we still need to add annotations on
the other subsystem's side.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.14-1 (bookworm) | linux 5.18.14-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 4.4.24 < 4.5 | 4.5 |
| linux | linux | >= 4.7.7 < 4.8 | 4.8 |
| linux | linux | >= e7d316a02f683864a12389f8808570e37fb90aa3 < d5d54714e329f646bd7af4994fc427d88ee68936 | d5d54714e329f646bd7af4994fc427d88ee68936 |
| linux | linux | >= e7d316a02f683864a12389f8808570e37fb90aa3 < d335db59f7fb3353f56e52371f1ee796ae9c8f09 | d335db59f7fb3353f56e52371f1ee796ae9c8f09 |
| linux | linux | >= e7d316a02f683864a12389f8808570e37fb90aa3 < 630c76850d554d7140232e71b5d1663e88cffb54 | 630c76850d554d7140232e71b5d1663e88cffb54 |
| linux | linux | >= e7d316a02f683864a12389f8808570e37fb90aa3 < 4762b532ec9539755aab61445d5da6e1926ccb99 | 4762b532ec9539755aab61445d5da6e1926ccb99 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.136-1 | 5.10.136-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 4.4.24 < 4.5 | 4.5 |
| linux | linux_kernel | >= 4.7.7 < 5.10.132 | 5.10.132 |
| linux | linux_kernel | >= 5.11 < 5.15.56 | 5.15.56 |
| linux | linux_kernel | >= 5.16 < 5.18.13 | 5.18.13 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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Red Hat
kernel: sysctl: Fix data races in proc_douintvec().
vendor_redhat·2025-02-26·CVSS 4.7
CVE-2022-49641 [MEDIUM] CWE-362 kernel: sysctl: Fix data races in proc_douintvec().
kernel: sysctl: Fix data races in proc_douintvec().
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec().
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE()
internally to fix data-races on the sysctl side. For now, proc_douintvec()
itself is tolerant to a data-race, but we still need to add annotations on
the other subsystem's side.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kern
Debian
CVE-2022-49641: linux - In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix...
vendor_debian·2022·CVSS 4.7
CVE-2022-49641 [MEDIUM] CVE-2022-49641: linux - In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix...
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
Scope: local
bookworm: resolved (fixed in 5.18.14-1)
bullseye: resolved (fixed in 5.10.136-1)
forky: resolved (fixed in 5.18.14-1)
sid: resolved (fixed in 5.18.14-1)
trixie: resolved (fixed in 5.18.14-1)
GHSA
GHSA-77f5-f59v-g352: In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec()
ghsa_unreviewed·2025-03-12
CVE-2022-49641 [MEDIUM] CWE-362 GHSA-77f5-f59v-g352: In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec()
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in proc_douintvec().
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE()
internally to fix data-races on the sysctl side. For now, proc_douintvec()
itself is tolerant to a data-race, but we still need to add annotations on
the other subsystem's side.
OSV
CVE-2022-49641: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec()
osv·2025-02-26·CVSS 4.7
CVE-2022-49641 [MEDIUM] CVE-2022-49641: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec()
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
No detection rules found.
No public exploits indexed.
2025-02-26
Published