Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() ocelot_port_xmit_inj() calls ocelot_can_inject() and ocelot_port_inject_frame() without holding the injection group lock. Both functions contain lockdep_assert_held() for the injection lock, and the correct caller felix_port_deferred_xmit() properly acquires the lock using ocelot_lock_inj_grp() before calling these functions. Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register injection path to fix the missing lock protection. The FDMA path is not affected as it uses its own locking mechanism.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.1.107, < 6.1.165 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605Patch
- https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386Patch
- https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48Patch
- https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477Patch
- https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04Patch
- https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198Patch
FAQ
What is CVE-2026-45849?
CVE-2026-45849 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() ocelot_port_xmit_inj() calls ocelot_can_inject() and ocel...
How severe is CVE-2026-45849?
CVE-2026-45849 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45849?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.