The patch titled Subject: ocfs2: fix NULL pointer dereferrence in __ocfs2_change_file_space() has been added to the -mm tree. Its filename is ocfs2-fix-null-pointer-dereferrence-in-__ocfs2_change_file_space.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Luis Henriques <luis.henriques@xxxxxxxxxxxxx> Subject: ocfs2: fix NULL pointer dereferrence in __ocfs2_change_file_space() As ocfs2_fallocate() will invoke __ocfs2_change_file_space() with a NULL as the first parameter (file), it may trigger a NULL pointer dereferrence due to a missing check. Addresses http://bugs.launchpad.net/bugs/1006012 Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx> Reported-by: Bret Towe <magnade@xxxxxxxxx> Cc: Sunil Mushran <sunil.mushran@xxxxxxxxxx> Cc: Joel Becker <jlbec@xxxxxxxxxxxx> Cc: Mark Fasheh <mfasheh@xxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/ocfs2/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN fs/ocfs2/file.c~ocfs2-fix-null-pointer-dereferrence-in-__ocfs2_change_file_space fs/ocfs2/file.c --- a/fs/ocfs2/file.c~ocfs2-fix-null-pointer-dereferrence-in-__ocfs2_change_file_space +++ a/fs/ocfs2/file.c @@ -1950,7 +1950,7 @@ static int __ocfs2_change_file_space(str if (ret < 0) mlog_errno(ret); - if (file->f_flags & O_SYNC) + if (file && (file->f_flags & O_SYNC)) handle->h_sync = 1; ocfs2_commit_trans(osb, handle); _ Subject: Subject: ocfs2: fix NULL pointer dereferrence in __ocfs2_change_file_space() Patches currently in -mm which might be from luis.henriques@xxxxxxxxxxxxx are ocfs2-fix-null-pointer-dereferrence-in-__ocfs2_change_file_space.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html