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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2011-04-02 11:09:26 -0400
committerJames Morris <jmorris@namei.org>2011-04-18 19:37:06 -0400
commit2a086e5d3a23570735f75b784d29b93068070833 (patch)
tree43949632ba2e1c8ed4a8169d64c406d66ce36f23 /firmware/.gitignore
parenta3232d2fa2e3cbab3e76d91cdae5890fee8a4034 (diff)
TOMOYO: Fix race on updating profile's comment line.
In tomoyo_write_profile() since 2.6.34, a lock was by error missing when replacing profile's comment line. If multiple threads attempted echo '0-COMMENT=comment' > /sys/kernel/security/tomoyo/profile in parallel, garbage collector will fail to kfree() the old value. Protect the replacement using a lock. Also, keep the old value rather than replace with empty string when out of memory error has occurred. Signed-off-by: Xiaochen Wang <wangxiaochen0@gmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'firmware/.gitignore')
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