CVE-2026-64299tracing: Prevent out-of-bounds read in glob matching
Updated under an hour ago ()
Does this affect you?
It affects Linux and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 60f1d5e3bac44b598f67d36062da96c095d2b700 before 265f3a690f6c7d69ef7d2ca50b04b4853a211df3; from 60f1d5e3bac44b598f67d36062da96c095d2b700 before ee5b8888d3248618251fb69a2fad92afcb81557e; 60f1d5e3bac44b598f67d36062da96c095d2b700 builds before 56d4c9ab84714eebb285a2fee68aaedf81e3ef15; 60f1d5e3bac44b598f67d36062da96c095d2b700 builds before 35ae19764eabfe9c29029d3b5713c86e6855acdf; from 60f1d5e3bac44b598f67d36062da96c095d2b700 before ebb55902856973906c8bb339a3a34824ed4a5086; 60f1d5e3bac44b598f67d36062da96c095d2b700 builds before 2dad64a97e1df47f5d9ccb17fa319aa348617226; from 60f1d5e3bac44b598f67d36062da96c095d2b700 before e5d5f3bd053a5f14787526c9f0f55ef900d43ac6; 60f1d5e3bac44b598f67d36062da96c095d2b700 builds before 0a6070839b1ef276d5b05bedfb787743e140fb17 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.10 before 5.10.261; from 5.11 before 5.15.212; from 5.16 before 6.1.178; from 6.2 before 6.6.145; from 6.7 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4; 7.2; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/265f3a690f6c7d69ef7d2ca50b04b4853a211df3patch
- https://git.kernel.org/stable/c/ee5b8888d3248618251fb69a2fad92afcb81557epatch
- https://git.kernel.org/stable/c/56d4c9ab84714eebb285a2fee68aaedf81e3ef15patch
- https://git.kernel.org/stable/c/35ae19764eabfe9c29029d3b5713c86e6855acdfpatch
- https://git.kernel.org/stable/c/ebb55902856973906c8bb339a3a34824ed4a5086patch
- https://git.kernel.org/stable/c/2dad64a97e1df47f5d9ccb17fa319aa348617226patch
- https://git.kernel.org/stable/c/e5d5f3bd053a5f14787526c9f0f55ef900d43ac6patch
- https://git.kernel.org/stable/c/0a6070839b1ef276d5b05bedfb787743e140fb17patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.