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| author | Amir Goldstein <amir73il@gmail.com> | 2021-03-04 11:09:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-20 10:39:47 +0100 |
| commit | 187ae04636531065cdb4d0f15deac1fe0e812104 (patch) | |
| tree | e73f7d9e1467b764b03ed5254c974633b30435d7 /crypto/cast6_generic.c | |
| parent | 28e53acd3065891b6762f7eeee98c66d4ed1ce6d (diff) | |
fuse: fix live lock in fuse_iget()
commit 775c5033a0d164622d9d10dd0f0a5531639ed3ed upstream.
Commit 5d069dbe8aaf ("fuse: fix bad inode") replaced make_bad_inode()
in fuse_iget() with a private implementation fuse_make_bad().
The private implementation fails to remove the bad inode from inode
cache, so the retry loop with iget5_locked() finds the same bad inode
and marks it bad forever.
kmsg snip:
[ ] rcu: INFO: rcu_sched self-detected stall on CPU
...
[ ] ? bit_wait_io+0x50/0x50
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ? find_inode.isra.32+0x60/0xb0
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ilookup5_nowait+0x65/0x90
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ilookup5.part.36+0x2e/0x80
[ ] ? fuse_init_file_inode+0x70/0x70
[ ] ? fuse_inode_eq+0x20/0x20
[ ] iget5_locked+0x21/0x80
[ ] ? fuse_inode_eq+0x20/0x20
[ ] fuse_iget+0x96/0x1b0
Fixes: 5d069dbe8aaf ("fuse: fix bad inode")
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto/cast6_generic.c')
0 files changed, 0 insertions, 0 deletions