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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 16:06:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 16:06:20 -0700
commita70b52ec1aaeaf60f4739edb1b422827cb6f3893 (patch)
treeb85acd421b97f018400bc55cb8eb14b4468c3b73 /fs/dcache.c
parentff8ce5f67ddca709fe59e6173f89260f0fdc2b22 (diff)
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vfs: make AIO use the proper rw_verify_area() area helpers
We had for some reason overlooked the AIO interface, and it didn't use the proper rw_verify_area() helper function that checks (for example) mandatory locking on the file, and that the size of the access doesn't cause us to overflow the provided offset limits etc. Instead, AIO did just the security_file_permission() thing (that rw_verify_area() also does) directly. This fixes it to do all the proper helper functions, which not only means that now mandatory file locking works with AIO too, we can actually remove lines of code. Reported-by: Manish Honap <manish_honap_vit@yahoo.co.in> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/dcache.c')
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