io_uring: check if we need to reschedule during overflow flush (Linux Linux)

CVE-2024-50060
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: check if we need to reschedule during overflow flush In terms of normal application usage, this list will always be empty. And if an application does overflow a bit, it'll have a few entries. However, nothing obviously prevents syzbot from running a test case that generates a ton of overflow entries, and then flushing them can take quite a while. Check for needing to reschedule while flushing, and drop our locks and do so if necessary. There's no state to maintain here as overflows always prune from head-of-list, hence it's fine to drop and reacquire the locks at the end of the loop.

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 2b188cc1bb857a9d4701ae59aa7768b5124e262e < a2493904e95ce94bbec819d8f7f03b99976eb25c ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < f4ce3b5d26ce149e77e6b8e8f2058aa80e5b034e ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < c2eadeafce2d385b3f6d26a7f31fee5aba2bbbb0 ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < eac2ca2d682f94f46b1973bdf5e77d85d77b8e53
Linux · Linuxaffected 5.1 ; unaffected 0 < 5.1 ; unaffected 6.1.113 ≤ 6.1.* ; unaffected 6.6.57 ≤ 6.6.* ; unaffected 6.11.4 ≤ 6.11.* ; unaffected 6.12 ≤ *

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