SB2026072027 - Improper resource shutdown or release in Linux kernel wwan iosm driver
Published: July 20, 2026
Security Bulletin ID
SB2026072027
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-2026-64179)
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 ipc_imem_init() when handling error paths after ipc_protocol_init(). A local user can trigger initialization failures to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/583fd5a8fc797c8ecf2e1a7b923740c5e5734e85
- https://git.kernel.org/stable/c/6f63a60580ebdd9a1f22f89a84814d1fefe16b1c
- https://git.kernel.org/stable/c/8f764a7810a9f114313c439d25b11f4417c6e0dd
- https://git.kernel.org/stable/c/ba6d8643019c33428f7c0658863e80e0b04a70f4
- https://git.kernel.org/stable/c/c5d93b2c40355e999715262a824965aac025a427
- https://git.kernel.org/stable/c/f1a4d57847813fae42fbb7eb35f2dd48b9cff8a9
- https://git.kernel.org/stable/c/ffb6dbb49c96be82f07c7b112e3ebc3e6fdd8dd5