]> www.infradead.org Git - users/jedix/linux-maple.git/commit
fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed
authorHuacai Chen <chenhuacai@loongson.cn>
Wed, 29 May 2024 06:40:52 +0000 (14:40 +0800)
committerKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
Thu, 11 Jul 2024 09:19:46 +0000 (12:19 +0300)
commit2fef55d8f78383c8e6d6d4c014b9597375132696
treee604a145f305f59ec4dd66bd6df09a1ce5af6c97
parent5bfb91c71207ef3f0058701eeca86d96c0a39447
fs/ntfs3: Update log->page_{mask,bits} if log->page_size changed

If an NTFS file system is mounted to another system with different
PAGE_SIZE from the original system, log->page_size will change in
log_replay(), but log->page_{mask,bits} don't change correspondingly.
This will cause a panic because "u32 bytes = log->page_size - page_off"
will get a negative value in the later read_log_page().

Cc: stable@vger.kernel.org
Fixes: b46acd6a6a627d876898e ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
fs/ntfs3/fslog.c