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CVE-2026-74629

net/dibs: Correct freeing of dmb_clientid_arr PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected cc21191b584c6f7836b0f10774f8278b7cbfba10 before ece6426b61241e9bfb41aa131f235168f55229b1; affected cc21191b584c6f7836b0f10774f8278b7cbfba10 before 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403; affected cc21191b584c6f7836b0f10774f8278b7cbfba10 before 9e6869be49064915edb6c8776b27c376cfdb0df5
Linux / Linuxaffected 6.18; unaffected 0 before 6.18; unaffected 6.18.45 through 6.18.*; unaffected 7.1.9 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.