CVE-2026-74629
Description
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().
How to fix
- Linux Linuxece6426b61241e9bfb41aa131f235168f55229b1, 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403, 9e6869be49064915edb6c8776b27c376cfdb0df5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | cc21191b584c6f7836b0f10774f8278b7cbfba10 ≤ v < ece6426b61241e9bfb41aa131f235168f55229b1, cc21191b584c6f7836b0f10774f8278b7cbfba10 ≤ v < 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403, cc21191b584c6f7836b0f10774f8278b7cbfba10 ≤ v < 9e6869be49064915edb6c8776b27c376cfdb0df5, 6.18 | ece6426b61241e9bfb41aa131f235168f55229b1, 7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403, 9e6869be49064915edb6c8776b27c376cfdb0df5 |
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