smb: Log an error when close_all_cached_dirs fails (Linux Linux)

CVE-2025-38321
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: smb: Log an error when close_all_cached_dirs fails Under low-memory conditions, close_all_cached_dirs() can't move the dentries to a separate list to dput() them once the locks are dropped. This will result in a "Dentry still in use" error, so add an error message that makes it clear this is what happened: [ 495.281119] CIFS: VFS: \\otters.example.com\share Out of memory while dropping dentries [ 495.281595] ------------[ cut here ]------------ [ 495.281887] BUG: Dentry ffff888115531138{i=78,n=/} still in use (2) [unmount of cifs cifs] [ 495.282391] WARNING: CPU: 1 PID: 2329 at fs/dcache.c:1536 umount_check+0xc8/0xf0 Also, bail out of looping through all tcons as soon as a single allocation fails, since we're already in trouble, and kmalloc() attempts for subseqeuent tcons are likely to fail just like the first one did.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
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 73934e535cffbda1490fa97d82690a0f9aa73e94 < b8ced2b9a23a1a2c1e0ed8d0d02512e51bdf38da ; affected 548812afd96982a76a93ba76c0582ea670c40d9e < 43f26094d6702e494e800532c3f1606e7a68eb30 ; affected 3fa640d035e5ae526769615c35cb9ed4be6e3662 < 4479db143390bdcadc1561292aab579cdfa9f6c6 ; affected 3fa640d035e5ae526769615c35cb9ed4be6e3662 < a2182743a8b4969481f64aec4908ff162e8a206c ; affected ff4528bbc82d0d90073751f7b49e7b9e9c7e5638 ; affected 6.6.64 < 6.6.95
Linux · Linuxaffected 6.13 ; unaffected 0 < 6.13 ; unaffected 6.6.95 ≤ 6.6.* ; unaffected 6.12.35 ≤ 6.12.* ; unaffected 6.15.4 ≤ 6.15.* ; unaffected 6.16 ≤ *

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