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| author | Gopal Tiwari <[email protected]> | 2021-02-02 09:42:30 +0000 |
|---|---|---|
| committer | Marcel Holtmann <[email protected]> | 2021-02-02 16:23:14 +0000 |
| commit | e8bd76ede155fd54d8c41d045dda43cd3174d506 (patch) | |
| tree | 32fbfad1baaab108f7ec92a851e3eb58bc16e4f4 /net/switchdev/switchdev.c | |
| parent | Bluetooth: btusb: Add protocol support for MediaTek MT7921U USB devices (diff) | |
| download | kernel-e8bd76ede155fd54d8c41d045dda43cd3174d506.tar.gz kernel-e8bd76ede155fd54d8c41d045dda43cd3174d506.zip | |
Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data
kernel panic trace looks like:
#5 [ffffb9e08698fc80] do_page_fault at ffffffffb666e0d7
#6 [ffffb9e08698fcb0] page_fault at ffffffffb70010fe
[exception RIP: amp_read_loc_assoc_final_data+63]
RIP: ffffffffc06ab54f RSP: ffffb9e08698fd68 RFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8c8845a5a000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffff8c8b9153d000 RDI: ffff8c8845a5a000
RBP: ffffb9e08698fe40 R8: 00000000000330e0 R9: ffffffffc0675c94
R10: ffffb9e08698fe58 R11: 0000000000000001 R12: ffff8c8b9cbf6200
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8c8b2026da0b
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffffb9e08698fda8] hci_event_packet at ffffffffc0676904 [bluetooth]
#8 [ffffb9e08698fe50] hci_rx_work at ffffffffc06629ac [bluetooth]
#9 [ffffb9e08698fe98] process_one_work at ffffffffb66f95e7
hcon->amp_mgr seems NULL triggered kernel panic in following line inside
function amp_read_loc_assoc_final_data
set_bit(READ_LOC_AMP_ASSOC_FINAL, &mgr->state);
Fixed by checking NULL for mgr.
Signed-off-by: Gopal Tiwari <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions