cifs: client: fix memory leak in smb3_fs_context_parse_param (Linux Linux)

CVE-2025-40268
Non disponible

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 8 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: client: fix memory leak in smb3_fs_context_parse_param The user calls fsconfig twice, but when the program exits, free() only frees ctx->source for the second fsconfig, not the first. Regarding fc->source, there is no code in the fs context related to its memory reclamation. To fix this memory leak, release the source memory corresponding to ctx or fc before each parsing. syzbot reported: BUG: memory leak unreferenced object 0xffff888128afa360 (size 96): backtrace (crc 79c9c7ba): kstrdup+0x3c/0x80 mm/util.c:84 smb3_fs_context_parse_param+0x229b/0x36c0 fs/smb/client/fs_context.c:1444 BUG: memory leak unreferenced object 0xffff888112c7d900 (size 96): backtrace (crc 79c9c7ba): smb3_fs_context_fullpath+0x70/0x1b0 fs/smb/client/fs_context.c:629 smb3_fs_context_parse_param+0x2266/0x36c0 fs/smb/client/fs_context.c:1438

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected af1a3d2ba9543e99d78914d8fb88b61d0531d9a1 < 299bc05e1475a4aa1eb985ade8f39e68c1bba9b9 ; affected af1a3d2ba9543e99d78914d8fb88b61d0531d9a1 < 868fc62811d3fabcf5685e14f36377a855d5412d ; affected af1a3d2ba9543e99d78914d8fb88b61d0531d9a1 < 48c17341577e25a22feb13d694374b61d974edbc ; affected af1a3d2ba9543e99d78914d8fb88b61d0531d9a1 < 4515743cc7a42e1d67468402a6420c195532a6fa ; affected af1a3d2ba9543e99d78914d8fb88b61d0531d9a1 < e8c73eb7db0a498cd4b22d2819e6ab1a6f506bd6
Linux · Linuxaffected 5.11 ; unaffected 0 < 5.11 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.117 ≤ 6.6.* ; unaffected 6.12.59 ≤ 6.12.* ; unaffected 6.17.9 ≤ 6.17.*

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