CVE-2026-45849

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605	Patch
https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386	Patch
https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48	Patch
https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477	Patch
https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04	Patch
https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.11:-::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.11:rc7::::::

History

No history.

Information

Published : 2026-05-27 14:16

Updated : 2026-06-25 21:03

NVD link : CVE-2026-45849

Mitre link : CVE-2026-45849

CVE.ORG link : CVE-2026-45849

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-667

Improper Locking

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