Re: [PATCH v2] Bluetooth: L2CAP: Fix memory leak in vhci_write

From: patchwork-bot+bluetooth
Date: Tue Oct 18 2022 - 16:00:24 EST


Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:

On Tue, 18 Oct 2022 10:18:51 +0800 you wrote:
> Syzkaller reports a memory leak as follows:
> ====================================
> BUG: memory leak
> unreferenced object 0xffff88810d81ac00 (size 240):
> [...]
> hex dump (first 32 bytes):
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> backtrace:
> [<ffffffff838733d9>] __alloc_skb+0x1f9/0x270 net/core/skbuff.c:418
> [<ffffffff833f742f>] alloc_skb include/linux/skbuff.h:1257 [inline]
> [<ffffffff833f742f>] bt_skb_alloc include/net/bluetooth/bluetooth.h:469 [inline]
> [<ffffffff833f742f>] vhci_get_user drivers/bluetooth/hci_vhci.c:391 [inline]
> [<ffffffff833f742f>] vhci_write+0x5f/0x230 drivers/bluetooth/hci_vhci.c:511
> [<ffffffff815e398d>] call_write_iter include/linux/fs.h:2192 [inline]
> [<ffffffff815e398d>] new_sync_write fs/read_write.c:491 [inline]
> [<ffffffff815e398d>] vfs_write+0x42d/0x540 fs/read_write.c:578
> [<ffffffff815e3cdd>] ksys_write+0x9d/0x160 fs/read_write.c:631
> [<ffffffff845e0645>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
> [<ffffffff845e0645>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
> [<ffffffff84600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> ====================================
>
> [...]

Here is the summary with links:
- [v2] Bluetooth: L2CAP: Fix memory leak in vhci_write
https://git.kernel.org/bluetooth/bluetooth-next/c/97097c85c088

You are awesome, thank you!
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