CVE-2026-53174
- Source
- https://cve.org/CVERecord?id=CVE-2026-53174
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53174.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-53174
- Downstream
- Published
- 2026-06-25T08:38:51.366Z
- Modified
- 2026-07-02T03:51:47.134964594Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ovl: keep err zero after successful ovl_cache_get()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ovl: keep err zero after successful ovlcacheget()
ovliteratemerged() stores PTRERR(cache) in err before checking ISERR(cache). On success err holds the truncated cache pointer and can be returned as a bogus non-zero error.
The syzbot reproducer reaches this through overlay-on-overlay readdir:
getdents64 iteratedir(outer overlay file) ovliteratemerged() ovlcacheget() ovldirreadmerged() ovldirread() iteratedir(inner overlay file) ovliterate_merged()
Only compute PTR_ERR(cache) on the error path.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53174.json" }- References
-
- https://git.kernel.org/stable/c/1711b6ed6953cee5940ca4c3a6e77f1b3798cee2
- https://git.kernel.org/stable/c/e7051909a01bfb883bfa78b27514854068ac4b85
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53174.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53174
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git