SB20260816497 - Improper resource shutdown or release in Linux kernel cavium liquidio driver
Published: August 16, 2026
Security Bulletin ID
SB20260816497
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
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-2026-72038)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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 setup_cn23xx_octeon_pf_device() in drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c when handling a PF number lookup failure during device initialization. A local user can trigger the affected initialization path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/020e52aee732bb08e6b89dd02bbf88895a50fffd
- https://git.kernel.org/stable/c/4140c516473a0e116ab3a73f9320c2aa5800210b
- https://git.kernel.org/stable/c/4a45884566bab4122bbeb8fff7d2d6b5fdbded24
- https://git.kernel.org/stable/c/715cce38424fb2488ef2c5e6e6ffbfe1b74a9e67
- https://git.kernel.org/stable/c/75b924759de9427761115301308c137904aa3f99
- https://git.kernel.org/stable/c/a22103618ee5b6ee884c374351f65fcdff7248f0
- https://git.kernel.org/stable/c/b74f293e5f38052cfa14710abfacd6b6561cc2d6
- https://git.kernel.org/stable/c/c63ee62a3c4ac1a1542f4c1a4b87e2f41df5a496