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| author | Daniel Borkmann <daniel@iogearbox.net> | 2023-05-26 12:13:56 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-05-26 12:16:12 +0200 |
| commit | 4266f41feaeee2521749ce2cfb52eafd4e2947c5 (patch) | |
| tree | 93e49d931c5c4355463771d46cc181f643e1dd0b /net/ipv4/udp.c | |
| parent | libbpf: Ensure FD >= 3 during bpf_map__reuse_fd() (diff) | |
| download | linux-4266f41feaeee2521749ce2cfb52eafd4e2947c5.tar.xz linux-4266f41feaeee2521749ce2cfb52eafd4e2947c5.zip | |
bpf: Fix bad unlock balance on freeze_mutex
Commit c4c84f6fb2c4 ("bpf: drop unnecessary bpf_capable() check in
BPF_MAP_FREEZE command") moved the permissions check outside of the
freeze_mutex in the map_freeze() handler. The error paths still jumps
to the err_put which tries to unlock the freeze_mutex even though it
was not locked in the first place. Fix it.
Fixes: c4c84f6fb2c4 ("bpf: drop unnecessary bpf_capable() check in BPF_MAP_FREEZE command")
Reported-by: syzbot+8982e75c2878b9ffeac5@syzkaller.appspotmail.com
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/ipv4/udp.c')
0 files changed, 0 insertions, 0 deletions