CVE-2022-49634
published 2025-02-26CVE-2022-49634: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax(). A sysctl variable is accessed…
PriorityP415medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.18%
8.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data-races in proc_dou8vec_minmax().
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_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Affected
13 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 | >= 389dab6142d742f91010f38de0f1f2f440b97e1b < f177b382c33900d0e5a9766493c11a1074076f78 | f177b382c33900d0e5a9766493c11a1074076f78 |
| linux | linux | >= cb9444130662c6c13022579c861098f212db2562 < e58b02e445463065b4078bf621561da75197853f | e58b02e445463065b4078bf621561da75197853f |
| linux | linux | >= cb9444130662c6c13022579c861098f212db2562 < 5f776daef0b5354615ec4b4234cd9539ca05f273 | 5f776daef0b5354615ec4b4234cd9539ca05f273 |
| linux | linux | >= cb9444130662c6c13022579c861098f212db2562 < 7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18 | 7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| 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 | >= 5.13 < 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_dou8vec_minmax().
vendor_redhat·2025-02-26·CVSS 4.7
CVE-2022-49634 [MEDIUM] CWE-362 kernel: sysctl: Fix data-races in proc_dou8vec_minmax().
kernel: sysctl: Fix data-races in proc_dou8vec_minmax().
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data-races in proc_dou8vec_minmax().
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_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dou8vec_minmax() 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
Debian
CVE-2022-49634: linux - In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix...
vendor_debian·2022·CVSS 4.7
CVE-2022-49634 [MEDIUM] CVE-2022-49634: 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_dou8vec_minmax(). 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_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() 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 5.10.178-1)
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-hcgj-x9q4-fj36: In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data-races in proc_dou8vec_minmax()
ghsa_unreviewed·2025-03-12
CVE-2022-49634 [MEDIUM] CWE-362 GHSA-hcgj-x9q4-fj36: In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data-races in proc_dou8vec_minmax()
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data-races in proc_dou8vec_minmax().
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_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
OSV
CVE-2022-49634: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax()
osv·2025-02-26·CVSS 4.7
CVE-2022-49634 [MEDIUM] CVE-2022-49634: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax()
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax(). 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_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() 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