Messages in this thread Patch in this message | | | From | Ye Bin <> | Subject | [PATCH -next] ext4: Fix access uninitialized 'retval' in kmmpd | Date | Tue, 13 Jul 2021 10:27:28 +0800 |
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If (!ext4_has_feature_mmp(sb)) then goto 'wait_to_exit' label, but retval not be uninitialized.
Fixes: 61bb4a1c417e ("ext4: fix possible UAF when remounting r/o a mmp-protected file system") Signed-off-by: Ye Bin <yebin10@huawei.com> --- fs/ext4/mmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index bc364c119af6..cebea4270817 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -138,7 +138,7 @@ static int kmmpd(void *data) unsigned mmp_check_interval; unsigned long last_update_time; unsigned long diff; - int retval; + int retval = 0; mmp_block = le64_to_cpu(es->s_mmp_block); mmp = (struct mmp_struct *)(bh->b_data); -- 2.31.1
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