5.5

CVE-2026-45964

SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path

In the Linux kernel, the following vulnerability has been resolved:

SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path

Commit 5940d1cf9f42 ("SUNRPC: Rebalance a kref in auth_gss.c") added
a kref_get(&gss_auth->kref) call to balance the gss_put_auth() done
in gss_release_msg(), but forgot to add a corresponding kref_put()
on the error path when kstrdup_const() fails.

If service_name is non-NULL and kstrdup_const() fails, the function
jumps to err_put_pipe_version which calls put_pipe_version() and
kfree(gss_msg), but never releases the gss_auth reference. This leads
to a kref leak where the gss_auth structure is never freed.

Add a forward declaration for gss_free_callback() and call kref_put()
in the err_put_pipe_version error path to properly release the
reference taken earlier.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.2 < 5.10.252
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.202
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.165
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.14
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.055
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/3b2b6c42070ce4204936288253baf101e995c2d3
Patch
https://git.kernel.org/stable/c/b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7
Patch
https://git.kernel.org/stable/c/a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6
Patch
https://git.kernel.org/stable/c/655c9ba9915f05266998dbbf4b76b3c79b8a70aa
Patch
https://git.kernel.org/stable/c/e464e26b2457005c87e158570498274b9f3b90c7
Patch
https://git.kernel.org/stable/c/c20f925214249bb4fc04f7e197bea142a6438af6
Patch
https://git.kernel.org/stable/c/a2d4e9a76de0b2178001214ba5de5bf94a7354aa
Patch
https://git.kernel.org/stable/c/dd2fdc3504592d85e549c523b054898a036a6afe
Patch