Re: [PATCH] wifi: ath9k: make sure we stop the wmi tasklet on init fail

From: Toke Høiland-Jørgensen

Date: Mon Oct 26 2026 - 05:17:24 EST


Eduard Zateev <hackerowskiy@xxxxxxxxx> writes:

> Hi Toke,
>
> I tested this patch with the syzbot C reproducer and KASAN on a 7.3.0
> kernel built from upstream commit 21a7f44fd.
>
> On the baseline kernel, the reproducer hit the reported
> slab-use-after-free in tasklet_action_common during ath9k_htc probe
> failure. With this patch, the same failure path completed without a
> KASAN report. Both kernels were run in QEMU with the syzbot config and
> ath9k firmware extracted from the syzbot rootfs.
>
> Tested-by: Eduard Zateev <hackerowskiy@xxxxxxxxx>

Great, thanks for testing! :)

-Toke