From: syzbot <syzbot+60332fd095f8bb2946ad@syzkaller.appspotmail.com>
To: malayarout91@gmail.com
Cc: malayarout91@gmail.com, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf
Date: Mon, 06 Jul 2026 06:36:06 -0700 [thread overview]
Message-ID: <6a4baf46.b42ede87.8bd1.0027.GAE@google.com> (raw)
In-Reply-To: <CAE2+fR82T2Uy4t5eN-Y_AusnFt2a7E5P5dpyKpJT_0x8dniztg@mail.gmail.com>
> Hi,
>
> Please test the following patch.
>
> #syz test
This crash does not have a reproducer. I cannot test it.
>
> diff --git a/drivers/net/ieee802154/mac802154_hwsim.c
> b/drivers/net/ieee802154/mac802154_hwsim.c
> index 6daa0f198b9f..99d52a2323ac 100644
> --- a/drivers/net/ieee802154/mac802154_hwsim.c
> +++ b/drivers/net/ieee802154/mac802154_hwsim.c
> @@ -113,7 +113,8 @@ static int hwsim_update_pib(struct ieee802154_hw
> *hw, u8 page, u8 channel,
> pib->filt_level = filt_level;
>
> rcu_assign_pointer(phy->pib, pib);
> - kfree_rcu(pib_old, rcu);
> + if (pib_old)
> + kfree_rcu(pib_old, rcu);
> return 0;
> }
next parent reply other threads:[~2026-07-06 13:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAE2+fR82T2Uy4t5eN-Y_AusnFt2a7E5P5dpyKpJT_0x8dniztg@mail.gmail.com>
2026-07-06 13:36 ` syzbot [this message]
2026-06-12 20:43 [syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf syzbot
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