UnratedFix available
net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.165, 6.12.75, 6.18.14, 6.19.4, 6.6.128
- CVEs
- CVE-2026-45849
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 00:42 UTC · Revision 1
Source evidence
net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()
core-osv · Original sourcePublished 27 May 2026, 12:15 UTC
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.
osv:CVE-2026-45849
Kernel
Fixed versions: 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4
Complete source record
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