The patch titled
Subject: ocfs2: fix incorrect CPU endianness conversion causing mount failure
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
ocfs2-fix-incorrect-cpu-endianness-conversion-causing-mount-failure.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ocfs2-fix-incorrect-cpu-endianness-conversion-causing-mount-failure.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Heming Zhao <heming.zhao@xxxxxxxx>
Subject: ocfs2: fix incorrect CPU endianness conversion causing mount failure
Date: Tue, 21 Jan 2025 19:22:03 +0800
Commit 23aab037106d ("ocfs2: fix UBSAN warning in ocfs2_verify_volume()")
introduced a regression bug. The blksz_bits value is already converted to
CPU endian in the previous code; therefore, the code shouldn't use
le32_to_cpu() anymore.
Link: https://lkml.kernel.org/r/20250121112204.12834-1-heming.zhao@xxxxxxxx
Fixes: 23aab037106d ("ocfs2: fix UBSAN warning in ocfs2_verify_volume()")
Signed-off-by: Heming Zhao <heming.zhao@xxxxxxxx>
Reviewed-by: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>
Cc: Mark Fasheh <mark@xxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Changwei Ge <gechangwei@xxxxxxx>
Cc: Jun Piao <piaojun@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ocfs2/super.c~ocfs2-fix-incorrect-cpu-endianness-conversion-causing-mount-failure
+++ a/fs/ocfs2/super.c
@@ -2340,7 +2340,7 @@ static int ocfs2_verify_volume(struct oc
mlog(ML_ERROR, "found superblock with incorrect block "
"size bits: found %u, should be 9, 10, 11, or 12\n",
blksz_bits);
- } else if ((1 << le32_to_cpu(blksz_bits)) != blksz) {
+ } else if ((1 << blksz_bits) != blksz) {
mlog(ML_ERROR, "found superblock with incorrect block "
"size: found %u, should be %u\n", 1 << blksz_bits, blksz);
} else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) !=
_
Patches currently in -mm which might be from heming.zhao@xxxxxxxx are
ocfs2-fix-incorrect-cpu-endianness-conversion-causing-mount-failure.patch
