CVE-2026-74629
In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb_clientid_arr A dibs device interrupt handler can be active after dibs_dev_del() and may still access dmb_clientid_arr. (UAF) In case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe() dmb_clientid_arr is freed twice (double free). Free dmb_clientid_arr in dibs_dev_release() after last reference is gone. Note that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok for now, because no dmbs can be registered before dibs_dev_add().
Affected versions
Linux kernel versions
6.18
and later are affected. Fixed in
6.18.45,
7.1.9,
7.2
and their respective stable series.
References
3 totalFrequently asked questions
-
What is CVE-2026-74629?
CVE-2026-74629 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.45, 7.1.9 and 7.2. CVE-2026-74629 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-74629?
Yes. CVE-2026-74629 has been patched. Fixed versions include 6.18.45, 7.1.9 and 7.2. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-74629 actively exploited?
No. CVE-2026-74629 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.