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| author | Tong Zhang <ztong0001@gmail.com> | 2022-06-26 21:33:48 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-06-27 21:48:51 -0700 |
| commit | 8ee9d82cd0a45e7d050ade598c9f33032a0f2891 (patch) | |
| tree | d2896ac471cd98f1f94936393ae659a0364b7f75 /net/sched/act_api.c | |
| parent | a8fc8cb5692aebb9c6f7afd4265366d25dcd1d01 (diff) | |
epic100: fix use after free on rmmod
epic_close() calls epic_rx() and uses dma buffer, but in epic_remove_one()
we already freed the dma buffer. To fix this issue, reorder function calls
like in the .probe function.
BUG: KASAN: use-after-free in epic_rx+0xa6/0x7e0 [epic100]
Call Trace:
epic_rx+0xa6/0x7e0 [epic100]
epic_close+0xec/0x2f0 [epic100]
unregister_netdev+0x18/0x20
epic_remove_one+0xaa/0xf0 [epic100]
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Yilun Wu <yiluwu@cs.stonybrook.edu>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Link: https://lore.kernel.org/r/20220627043351.25615-1-ztong0001@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sched/act_api.c')
0 files changed, 0 insertions, 0 deletions