David Howells 6f26229832 afs: Fix use-after-loss-of-ref ...

commit 40a708bd62 upstream.

afs_lookup() has a tracepoint to indicate the outcome of
d_splice_alias(), passing it the inode to retrieve the fid from.
However, the function gave up its ref on that inode when it called
d_splice_alias(), which may have failed and dropped the inode.

Fix this by caching the fid.

Fixes: 80548b0399 ("afs: Add more tracepoints")
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-01-17 19:48:41 +01:00

..

events

afs: Fix use-after-loss-of-ref

2020-01-17 19:48:41 +01:00

bpf_probe.h

bpf: add writable context for raw tracepoints

2019-04-26 19:04:19 -07:00

define_trace.h

tracing: introduce TRACE_EVENT_NOP()

2019-04-08 09:22:51 -04:00

perf.h

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-11-04 09:26:51 +09:00

syscall.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_events.h

tracing: Prevent further users of zero size static arrays in trace events

2018-05-29 08:29:13 -04:00