SB2026072041 - Improper resource shutdown or release in Linux kernel trace
Published: July 20, 2026
Security Bulletin ID
SB2026072041
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2026-64173)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in tracing_map_elt_free() in kernel/trace/tracing_map.c when handling allocation failures during tracing map element initialization. A local user can trigger an allocation failure path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1a150947f8480262a46c860f1acb9c6597ca7097
- https://git.kernel.org/stable/c/49332e49ad5b20262cc719b03d4123b9362de701
- https://git.kernel.org/stable/c/798183376d9d3e278a270ea0e75a5769c8f145d9
- https://git.kernel.org/stable/c/8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03
- https://git.kernel.org/stable/c/b427e9f6d81c9341cba23ef92f860f99f830d91d
- https://git.kernel.org/stable/c/b559a218eece132de0c58d444877b5627cbee524
- https://git.kernel.org/stable/c/b6723339736320b2e1784258ad4490cec7aac11a
- https://git.kernel.org/stable/c/f383cff9fb382139980bac1bcd3f3f5d59f68435