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authorAl Viro <viro@ZenIV.linux.org.uk>2012-11-18 19:19:00 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-11-18 19:30:00 (GMT)
commit3587b1b097d70c2eb9fee95ea7995d13c05f66e5 (patch)
tree71f29d988cb6a1ac7f1c258dc003a9d252ea72f6 /CREDITS
parent8d938105e432fe0e9f5163147e9c113190bd9d32 (diff)
fanotify: fix FAN_Q_OVERFLOW case of fanotify_read()
If the FAN_Q_OVERFLOW bit set in event->mask, the fanotify event metadata will not contain a valid file descriptor, but copy_event_to_user() didn't check for that, and unconditionally does a fd_install() on the file descriptor. Which in turn will cause a BUG_ON() in __fd_install(). Introduced by commit 352e3b249284 ("fanotify: sanitize failure exits in copy_event_to_user()") Mea culpa - missed that path ;-/ Reported-by: Alex Shi <lkml.alex@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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0 files changed, 0 insertions, 0 deletions

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