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| author |   Zheng Wang <zyytlz.wz@163.com> | 2023-03-17 00:15:26 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2023-03-19 10:42:02 +0000 |
| commit | e8d20c3ded59a092532513c9bd030d1ea66f5f44 (patch) | |
| tree | a94160e25bb15a95b9554c3cb4a1edbe46edda13 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info (diff) | |
| download | wireguard-linux-e8d20c3ded59a092532513c9bd030d1ea66f5f44.tar.xz wireguard-linux-e8d20c3ded59a092532513c9bd030d1ea66f5f44.zip | |
xirc2ps_cs: Fix use after free bug in xirc2ps_detach
In xirc2ps_probe, the local->tx_timeout_task was bounded
with xirc2ps_tx_timeout_task. When timeout occurs,
it will call xirc_tx_timeout->schedule_work to start the
work.
When we call xirc2ps_detach to remove the driver, there
may be a sequence as follows:
Stop responding to timeout tasks and complete scheduled
tasks before cleanup in xirc2ps_detach, which will fix
the problem.
CPU0 CPU1
|xirc2ps_tx_timeout_task
xirc2ps_detach |
free_netdev |
kfree(dev); |
|
| do_reset
| //use dev
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions