padata: do not leak refcount in reorder_work (Linux Linux)

CVE-2025-38031
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: padata: do not leak refcount in reorder_work A recent patch that addressed a UAF introduced a reference count leak: the parallel_data refcount is incremented unconditionally, regardless of the return value of queue_work(). If the work item is already queued, the incremented refcount is never decremented. Fix this by checking the return value of queue_work() and decrementing the refcount when necessary. Resolves: Unreferenced object 0xffff9d9f421e3d80 (size 192): comm "cryptomgr_probe", pid 157, jiffies 4294694003 hex dump (first 32 bytes): 80 8b cf 41 9f 9d ff ff b8 97 e0 89 ff ff ff ff ...A............ d0 97 e0 89 ff ff ff ff 19 00 00 00 1f 88 23 00 ..............#. backtrace (crc 838fb36): __kmalloc_cache_noprof+0x284/0x320 padata_alloc_pd+0x20/0x1e0 padata_alloc_shell+0x3b/0xa0 0xffffffffc040a54d cryptomgr_probe+0x43/0xc0 kthread+0xf6/0x1f0 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected f4f1b1169fc3694f9bc3e28c6c68dbbf4cc744c0 < b9ad8e50e8589607e68e6c4cefa7f72bf35a2cb1 ; affected 4c6209efea2208597dbd3e52dc87a0d1a8f2dbe1 < 1a426abdf1c86882c9203dd8182f3b8274b89938 ; affected 7000507bb0d2ceb545c0a690e0c707c897d102c2 < cceb15864e1612ebfbc10ec4e4dcd19a10c0056c ; affected 6f45ef616775b0ce7889b0f6077fc8d681ab30bc < 584a729615fa92f4de45480efb7e569d14be1516 ; affected 8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac < 5300e487487d7a2e3e1e6e9d8f03ed9452e4019e ; affected dd7d37ccf6b11f3d95e797ebe4e9e886d0332600 < 1c65ae4988714716101555fe2b9830e33136d6fb
Linux · Linuxaffected 6.14 ; unaffected 0 < 6.14 ; unaffected 5.10.238 ≤ 5.10.* ; unaffected 5.15.185 ≤ 5.15.* ; unaffected 6.1.141 ≤ 6.1.* ; unaffected 6.6.93 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD