SB2026062579 - Improper resource shutdown or release in Linux kernel broadcom genet driver
Published: June 25, 2026
Security Bulletin ID
SB2026062579
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-2026-53087)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource management in the bcmgenet transmit queue reclaim logic when reclaiming the tx queue and dropping data in flight. A local user can trigger transmission drops to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/150d06aae1839a6564ab200ef0e7291c3528bbb0
- https://git.kernel.org/stable/c/25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb
- https://git.kernel.org/stable/c/3c3abbcfa05bad17965498ff7cc94c2418fa94b3
- https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0
- https://git.kernel.org/stable/c/52b9f80993698138b90e5ca3a72550a2501f2a96
- https://git.kernel.org/stable/c/ac4a29c331ecb5b10240c44247a8e010c95bc15b