diff options
| author | David Howells <[email protected]> | 2019-08-09 22:47:47 +0100 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2019-08-11 21:28:29 -0700 |
| commit | 68553f1a6f746bf860bce3eb42d78c26a717d9c0 (patch) | |
| tree | 21976129cca92569ee1d4b1962bbaed681d528d6 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 59c84b9fcf42c99a945d5fdc49220d854e539690 (diff) | |
rxrpc: Fix local refcounting
Fix rxrpc_unuse_local() to handle a NULL local pointer as it can be called
on an unbound socket on which rx->local is not yet set.
The following reproduced (includes omitted):
int main(void)
{
socket(AF_RXRPC, SOCK_DGRAM, AF_INET);
return 0;
}
causes the following oops to occur:
BUG: kernel NULL pointer dereference, address: 0000000000000010
...
RIP: 0010:rxrpc_unuse_local+0x8/0x1b
...
Call Trace:
rxrpc_release+0x2b5/0x338
__sock_release+0x37/0xa1
sock_close+0x14/0x17
__fput+0x115/0x1e9
task_work_run+0x72/0x98
do_exit+0x51b/0xa7a
? __context_tracking_exit+0x4e/0x10e
do_group_exit+0xab/0xab
__x64_sys_exit_group+0x14/0x17
do_syscall_64+0x89/0x1d4
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Reported-by: [email protected]
Fixes: 730c5fd42c1e ("rxrpc: Fix local endpoint refcounting")
Signed-off-by: David Howells <[email protected]>
cc: Jeffrey Altman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions