CVE-2026-64299 (GCVE-0-2026-64299)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-10-19 20:38
VLAI
Title
tracing: Prevent out-of-bounds read in glob matching
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Prevent out-of-bounds read in glob matching String event fields are not necessarily NUL-terminated, so the filter predicate functions (filter_pred_string(), filter_pred_strloc() and filter_pred_strrelloc()) pass the field length to the regex match callbacks, and the length-aware matchers honour it. regex_match_glob() was the exception: it ignored the length and called glob_match(), which scans the string until it hits a NUL byte. Some string fields are not NUL-terminated. One example is the dynamic char array of the xfs_* namespace tracepoints, which is copied without a trailing NUL. For such a field, glob matching reads past the end of the event field, causing a KASAN slab-out-of-bounds read in glob_match(), reached via regex_match_glob() and filter_match_preds() from the xfs_lookup tracepoint. Add a length-bounded glob_match_len() and use it from regex_match_glob() so glob matching always stops at the field boundary. The matching loop is factored into a shared helper so glob_match() keeps its behaviour.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:38 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < 265f3a690f6c7d69ef7d2ca50b04b4853a211df3 (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < ee5b8888d3248618251fb69a2fad92afcb81557e (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < 56d4c9ab84714eebb285a2fee68aaedf81e3ef15 (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < 35ae19764eabfe9c29029d3b5713c86e6855acdf (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < ebb55902856973906c8bb339a3a34824ed4a5086 (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < 2dad64a97e1df47f5d9ccb17fa319aa348617226 (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < e5d5f3bd053a5f14787526c9f0f55ef900d43ac6 (git)
Affected: 60f1d5e3bac44b598f67d36062da96c095d2b700 , < 0a6070839b1ef276d5b05bedfb787743e140fb17 (git)
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Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.96 , ≤ 6.12.* (semver)
Unaffected: 6.18.39 , ≤ 6.18.* (semver)
Unaffected: 7.1.4 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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        "dateUpdated": "2026-10-19T20:38:22.703Z",
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  }
}



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