rethook: fix a potential memleak in rethook_alloc()
Published May 1, 2025
5.5
MEDIUMCVSS 3.1
EPSS 0.17%
Description
In rethook_alloc(), the variable rh is not freed or passed out if handler is NULL, which could lead to a memleak, fix it.
[Masami: Add "rethook:" tag to the title.]
Acke-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Affected products
-
Affected
- ≥ , <
- ≥ , <
-
Affected
- 5.18
Unaffected
- ≥ 0, < 5.18
- ≥ 6.0.10, ≤ 6.0.*
- 6.1
- ≥ 5.18 · < 6.0.10
- 6.1
- 6.1
- 6.1
- 6.1
- 6.1
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Fix deferred
Red Hat Enterprise Linux 9
kernel-rt
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (8)
- https://access.redhat.com/security/cve/CVE-2022-49795 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2363386 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-12970 Advisory
- https://git.kernel.org/stable/c/0a1ebe35cb3b7aa1f4b26b37e2a0b9ae68dc4ffb Patch
- https://git.kernel.org/stable/c/cbc5d1f9a8cc40ba2bc6779b36d2ea1f65bc027c Patch
- https://lore.kernel.org/linux-cve-announce/2025050124-CVE-2022-49795-e512@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-49795
- https://www.cve.org/CVERecord?id=CVE-2022-49795
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
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GitHub
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