diff options
| author | Pauli Virtanen <pav@iki.fi> | 2025-11-02 20:16:12 +0200 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2025-11-10 16:00:44 -0500 |
| commit | 55fb52ffdd62850d667ebed842815e072d3c9961 (patch) | |
| tree | d2050b278314089a77ab3b010c6abeef85a6fe55 /net/bluetooth | |
| parent | 96a9178a29a6b84bb632ebeb4e84cf61191c73d5 (diff) | |
Bluetooth: MGMT: cancel mesh send timer when hdev removed
mesh_send_done timer is not canceled when hdev is removed, which causes
crash if the timer triggers after hdev is gone.
Cancel the timer when MGMT removes the hdev, like other MGMT timers.
Should fix the BUG: sporadically seen by BlueZ test bot
(in "Mesh - Send cancel - 1" test).
Log:
------
BUG: KASAN: slab-use-after-free in run_timer_softirq+0x76b/0x7d0
...
Freed by task 36:
kasan_save_stack+0x24/0x50
kasan_save_track+0x14/0x30
__kasan_save_free_info+0x3a/0x60
__kasan_slab_free+0x43/0x70
kfree+0x103/0x500
device_release+0x9a/0x210
kobject_put+0x100/0x1e0
vhci_release+0x18b/0x240
------
Fixes: b338d91703fa ("Bluetooth: Implement support for Mesh")
Link: https://lore.kernel.org/linux-bluetooth/67364c09.0c0a0220.113cba.39ff@mx.google.com/
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/mgmt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 79762bfaea5f..262bf984d2aa 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -9497,6 +9497,7 @@ void mgmt_index_removed(struct hci_dev *hdev) cancel_delayed_work_sync(&hdev->discov_off); cancel_delayed_work_sync(&hdev->service_cache); cancel_delayed_work_sync(&hdev->rpa_expired); + cancel_delayed_work_sync(&hdev->mesh_send_done); } void mgmt_power_on(struct hci_dev *hdev, int err) |