CVE-2026-22997
What it is
In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts Since j1939_session_deactivate_activate_next() in j1939_tp_rxtimer() is called only when the timer is enabled, we need to call j1939_session_deactivate_activate_next() if we cancelled the timer. Otherwise, refcount for j1939_session leaks, which will later appear as | unregister_netdevice: waiting for vcan0 to become free. Usage count = 2. problem.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-772
- Record status
- Modified
Affected
- Linux Kernel < 5.10.249
- Linux Kernel < 5.15.199
- Linux Kernel < 6.1.162
- Linux Kernel < 6.6.122
- Linux Kernel < 6.12.67
- Linux Kernel < 6.18.7
- Linux Kernel 6.19
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-22997.md and follow it. Check whether this project is affected by CVE-2026-22997. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a
- https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703
- https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b
- https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c
- https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b
- https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4
- https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a
References
- https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a
- https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703
- https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b
- https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c
- https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b
- https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4
- https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a