Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Tue, 24 Sep 2024 11:32:37 -0400 you wrote:
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>
> [Syzbot reported]
> BUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
> Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54
>
> CPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
> Workqueue: hci2 hci_rx_work
> Call Trace:
> <TASK>
> __dump_stack lib/dump_stack.c:93 [inline]
> dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
> print_address_description mm/kasan/report.c:377 [inline]
> print_report+0xc3/0x620 mm/kasan/report.c:488
> kasan_report+0xd9/0x110 mm/kasan/report.c:601
> l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
> l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline]
> l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline]
> l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline]
> l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825
> l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514
> hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline]
> hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028
> process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
> process_scheduled_works kernel/workqueue.c:3312 [inline]
> worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
> kthread+0x2c1/0x3a0 kernel/kthread.c:389
> ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
> ...
>
> [...]
Here is the summary with links:
- [v2] Bluetooth: L2CAP: Fix uaf in l2cap_connect
https://git.kernel.org/bluetooth/bluetooth-next/c/d93544ba0cd8
You are awesome, thank you!
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