CVE-2026-74362ext2: fix ignored return value of generic_write_sync()
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ext2: fix ignored return value of generic_write_sync() Fix ext2_dio_write_iter() to propagate the error returned by generic_write_sync() instead of silently discarding it, which could cause write(2) to return success to userspace on O_SYNC/O_DSYNC files even when the sync failed. The correct pattern, already used in ext2_dax_write_iter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = generic_write_sync(iocb, ret); Found by Linux Verification Center (linuxtesting.org) with SVACE. [JK: Reflect also filemap_write_and_wait() return value]
Timeline
ID reserved
By Linux
Published
- 2 days later
· 2 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected fb5de4358e1aa4753dce73c4dc1aca73ff39cedd – < 8990dbb7065b0b002b1e58b9091a5b61f5e94dbe
- affected fb5de4358e1aa4753dce73c4dc1aca73ff39cedd – < 8d70b3973020e59845c0bdad90e0b9c2295fd493
- affected fb5de4358e1aa4753dce73c4dc1aca73ff39cedd – < ffa974b2f50ad8b911b9066d7aed84ad0afabcdb
- affected fb5de4358e1aa4753dce73c4dc1aca73ff39cedd – < b6bc07e49a5fbb335f56eb90cd63dec6584c77d3
- affected fb5de4358e1aa4753dce73c4dc1aca73ff39cedd – < a4659be0bc7cb1856ffb15b67f903229ae8891ec
- affected 6.5
- unaffected < 6.5
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References5
- https://git.kernel.org/stable/c/8990dbb7065b0b002b1e58b9091a5b61f5e94dbe (opens in a new tab)
- https://git.kernel.org/stable/c/8d70b3973020e59845c0bdad90e0b9c2295fd493 (opens in a new tab)
- https://git.kernel.org/stable/c/ffa974b2f50ad8b911b9066d7aed84ad0afabcdb (opens in a new tab)
- https://git.kernel.org/stable/c/b6bc07e49a5fbb335f56eb90cd63dec6584c77d3 (opens in a new tab)
- https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59509 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-74362)Record last updated .