tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
Published Feb 26, 2025
4.7
MEDIUMCVSS 3.1
EPSS 0.19%
Description
While reading sysctl_tcp_notsent_lowat, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 3.12StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<3.12
- Version 4.14.290StatusunaffectedConstraints<=4.14.*
- Version 4.19.254StatusunaffectedConstraints<=4.19.*
- Version 4.9.325StatusunaffectedConstraints<=4.9.*
- Version 5.10.134StatusunaffectedConstraints<=5.10.*
- Version 5.15.58StatusunaffectedConstraints<=5.15.*
- Version 5.18.15StatusunaffectedConstraints<=5.18.*
- Version 5.19StatusunaffectedConstraints<=*
- Version 5.4.208StatusunaffectedConstraints<=5.4.*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 3.12 · < 4.9.325
- ≥ 4.10 · < 4.14.290
- ≥ 4.15 · < 4.19.254
- ≥ 4.20 · < 5.4.208
- ≥ 5.5 · < 5.10.134
- ≥ 5.11 · < 5.15.58
- ≥ 5.16 · < 5.18.15
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
- 5.19
No data.
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel-rt
Out of support scope
Red Hat Enterprise Linux 8
kernel
Out of support scope
Red Hat Enterprise Linux 8
kernel-rt
Out of support scope
Red Hat Enterprise Linux 9
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (13)
- https://access.redhat.com/security/cve/CVE-2022-49587 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2347976 Issue Tracking
- https://git.kernel.org/stable/c/0f75343584ee474303e17efe0610bdd170af1d13 Patch
- https://git.kernel.org/stable/c/55be873695ed8912eb77ff46d1d1cadf028bd0f3 Patch
- https://git.kernel.org/stable/c/62e56cfeb2ae4b53ae9ca24c80f54093250ce64a Patch
- https://git.kernel.org/stable/c/80d4d0c461674eea87f0977e12a2ecd334b9b79c Patch
- https://git.kernel.org/stable/c/91e21df688f8a75255ca9c459da39ac96300113a Patch
- https://git.kernel.org/stable/c/c1b85c5a34294f7444c13bf828e0e84b0a0eed85 Patch
- https://git.kernel.org/stable/c/e9362a993886613ef0284c2a4911c6017c97d803 Patch
- https://git.kernel.org/stable/c/fd6f1284e380c377932186042ff0b5c987fb2b92 Patch
- https://lore.kernel.org/linux-cve-announce/2025022609-CVE-2022-49587-33ba@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-49587
- https://www.cve.org/CVERecord?id=CVE-2022-49587
Change history (0)
No recorded changes yet.