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CVE-2026-63820

f2fs: fix missing read bio submission on large folio error

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

f2fs: fix missing read bio submission on large folio error

f2fs_read_data_large_folio() can keep a read bio across multiple
readahead folios.  If a later folio hits an error before any of its
blocks are added to the bio, folio_in_bio is false and the current error
path returns immediately after ending that folio.

This can leave the bio accumulated for earlier folios unsubmitted.  Those
folios then never receive read completion, and readers can wait
indefinitely on the locked folios.

Route errors through the common out path so any pending bio is submitted
before returning.  Stop consuming more readahead folios once an error is
seen, and only wait on and clear the current folio when it was actually
added to the bio.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version a5d8b9d94e1863f3ebb7182c238b2c713f6f4efd
Version < 48c92559e7b66fdc3cbc74f6e152e66ec0150a0a
Status affected
Version a5d8b9d94e1863f3ebb7182c238b2c713f6f4efd
Version < 74c8d2ec95c59a5651ecd975c466998af1961fd4
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 7.0
Status affected
Version 0
Version < 7.0
Status unaffected
Version <= 7.1.*
Version 7.1.3
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.042
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/48c92559e7b66fdc3cbc74f6e152e66ec0150a0a
https://git.kernel.org/stable/c/74c8d2ec95c59a5651ecd975c466998af1961fd4