CVE-2026-74362 (GCVE-0-2026-74362)
Vulnerability from cvelistv5
Published
2026-08-15 05:58
Modified
2026-08-17 05:17
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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]
References
Impacted products
{
"containers": {
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"programFiles": [
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"versions": [
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"version": "0",
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"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
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}
],
"cpeApplicability": [
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"nodes": [
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next2: fix ignored return value of generic_write_sync()\n\nFix ext2_dio_write_iter() to propagate the error returned by\ngeneric_write_sync() instead of silently discarding it, which could\ncause write(2) to return success to userspace on O_SYNC/O_DSYNC files\neven when the sync failed.\n\nThe correct pattern, already used in ext2_dax_write_iter() in the same\nfile and in ext4, xfs, f2fs among others, is:\n if (ret \u003e 0)\n ret = generic_write_sync(iocb, ret);\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[JK: Reflect also filemap_write_and_wait() return value]"
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:17:56.829Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
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"url": "https://git.kernel.org/stable/c/8990dbb7065b0b002b1e58b9091a5b61f5e94dbe"
},
{
"url": "https://git.kernel.org/stable/c/8d70b3973020e59845c0bdad90e0b9c2295fd493"
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{
"url": "https://git.kernel.org/stable/c/ffa974b2f50ad8b911b9066d7aed84ad0afabcdb"
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{
"url": "https://git.kernel.org/stable/c/b6bc07e49a5fbb335f56eb90cd63dec6584c77d3"
},
{
"url": "https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec"
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],
"title": "ext2: fix ignored return value of generic_write_sync()",
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-74362",
"datePublished": "2026-08-15T05:58:45.553Z",
"dateReserved": "2026-08-15T05:44:03.887Z",
"dateUpdated": "2026-08-17T05:17:56.829Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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