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(parent: 0634867) | patch
ext4: fixed potential NULL dereference in ext4_calculate_overhead()
authorVahram Martirosyan <vmartirosyan@gmail.com>
Wed, 28 Nov 2012 17:44:16 +0000 (12:44 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 28 Nov 2012 17:44:16 +0000 (12:44 -0500)
commit766f44d46a726cb59f52a75c5c87425a10c4bade
tree33aa0c54b0ad7dd3aa6036f4a6351827275286f1tree | snapshot
parent06348679c9f69b3b031cf84c1f5f9f2488fc1f7dcommit | diff
ext4: fixed potential NULL dereference in ext4_calculate_overhead()

The memset operation before check can cause a BUG if the memory
allocation failed.  Since we are using get_zeroed_age, there is no
need to use memset anyway.

Found by the Spruce system in cooperation with the KEDR Framework.

Signed-off-by: Vahram Martirosyan <vmartirosyan@linuxtesting.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/super.c diff | blob | history
Domain: System / Kernel;