Hi,
Syzbot reports a possible irq lock inversion dependency:
https://syzkaller.appspot.com/bug?id=923cfc6c6348963f99886a0176ef11dcc429547b
While investigating this error, I discovered that multiple similar lock inversion scenarios can occur. Hence, this series addresses potential deadlocks for two classes of locks, one in each patch:
1. Fix potential deadlocks for &fown_struct.lock
2. Fix potential deadlock for &fasync_struct.fa_lock
Best wishes,
Desmond
Desmond Cheong Zhi Xi (2):
fcntl: fix potential deadlocks for &fown_struct.lock
fcntl: fix potential deadlock for &fasync_struct.fa_lock
fs/fcntl.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
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2.25.1