diff options
| author | Amit Shah <[email protected]> | 2011-03-04 03:34:33 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2011-03-06 18:44:13 +0000 |
| commit | d7a62cd0332115d4c7c4689abea0d889a30d8349 (patch) | |
| tree | ced474d2ff1959576ac55f760bbafbe1073af11a /tools/perf/util/trace-event-scripting.c | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sag... (diff) | |
| download | kernel-d7a62cd0332115d4c7c4689abea0d889a30d8349.tar.gz kernel-d7a62cd0332115d4c7c4689abea0d889a30d8349.zip | |
virtio: console: Don't access vqs if device was unplugged
If a virtio-console device gets unplugged while a port is open, a
subsequent close() call on the port accesses vqs to free up buffers.
This can lead to a crash.
The buffers are already freed up as a result of the call to
unplug_ports() from virtcons_remove(). The fix is to simply not access
vq information if port->portdev is NULL.
Reported-by: juzhang <[email protected]>
CC: [email protected]
Signed-off-by: Amit Shah <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions