diff options
| author | Eason Lai <Eason.Lai@mediatek.com> | 2026-07-01 09:06:54 +0800 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2026-07-31 12:25:38 +0000 |
| commit | 217f9e7bb02558759be9d9ecfe532e9708741c50 (patch) | |
| tree | 6397d5b9039333fb6d28db0ea66b4cbeb09fe680 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 3c004f73d68b415d231189b75a3cff1582a17e90 (diff) | |
wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
A use-after-free issue occurs in mt76_rx_poll_complete due to a race
condition. The STA has already been removed, but the rx_status still
had a pointer to the wcid in the STA.
Set the links' wcid pointers to be NULL for a MLD in
mt7925_sta_pre_rcu_remove()
BUG: KASAN: invalid-access in mt76_rx_poll_complete+0x280/0x470
Call trace:
dump_backtrace+0xec/0x128
show_stack+0x18/0x28
dump_stack_lvl+0x40/0xc8
print_report+0x1b8/0x710
kasan_report+0xe0/0x144
do_bad_area+0x120/0x260
do_tag_check_fault+0x20/0x34
do_mem_abort+0x54/0xa8
el1_abort+0x3c/0x5c
el1h_64_sync_handler+0x40/0xcc
el1h_64_sync+0x7c/0x80
mt76_rx_poll_complete+0x280/0x470
mt76_dma_rx_poll+0x114/0x51c
mt792x_poll_rx+0x60/0xf8
napi_threaded_poll_loop+0xe0/0x450
napi_threaded_poll+0x80/0x9c
kthread+0x11c/0x158
ret_from_fork+0x10/0x20
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: Eason Lai <Eason.Lai@mediatek.com>
Link: https://patch.msgid.link/20260701010654.956863-1-eason.lai@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions