Hi Tommi, This patch should resolve this bug. Thanks a lot. :) >From ee24677b9917583f50f16b6f59771439f91b890c Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Date: Mon, 8 Sep 2014 10:59:43 -0700 Subject: [PATCH] f2fs: fix negative value for lseek offset If application throws negative value of lseek with SEEK_DATA|SEEK_HOLE, previous f2fs went into BUG_ON in get_dnode_of_data, which was reported by Tommi Rantala. He could make a simple code to detect this having: lseek(fd, -17595150933902LL, SEEK_DATA); This patch should resolve that bug. Reported-by: Tommi Rentala <tt.rantala@xxxxxxxxx> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> --- fs/f2fs/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 9f0ea3d..c9a1295 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -281,7 +281,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) mutex_lock(&inode->i_mutex); isize = i_size_read(inode); - if (offset >= isize) + if (offset >= isize || offset < 0) goto fail; /* handle inline data case */ -- 1.8.5.2 (Apple Git-48) -- To unsubscribe from this list: send the line "unsubscribe trinity" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
