5.5

CVE-2025-22016

dpll: fix xa_alloc_cyclic() error handling

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

dpll: fix xa_alloc_cyclic() error handling

In case of returning 1 from xa_alloc_cyclic() (wrapping) ERR_PTR(1) will
be returned, which will cause IS_ERR() to be false. Which can lead to
dereference not allocated pointer (pin).

Fix it by checking if err is lower than zero.

This wasn't found in real usecase, only noticed. Credit to Pierre.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.8 < 6.12.21
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.9
Linux ≫ Linux Kernel Version 6.14 Update rc1
Linux ≫ Linux Kernel Version 6.14 Update rc2
Linux ≫ Linux Kernel Version 6.14 Update rc3
Linux ≫ Linux Kernel Version 6.14 Update rc4
Linux ≫ Linux Kernel Version 6.14 Update rc5
Linux ≫ Linux Kernel Version 6.14 Update rc6
Linux ≫ Linux Kernel Version 6.14 Update rc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.086
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/cb2f8a5c1fd9e7a1fefa23afe20570e16da1ada4
Patch
https://git.kernel.org/stable/c/4d350043be684762e581d9bdd32d543621d01a9c
Patch
https://git.kernel.org/stable/c/3614bf90130d60f191a5fe218d04f6251c678e13
Patch