kernel/linux.git/fs/ntfs3/bitmap.c, branch v5.15.208

fs/ntfs3: Fix a resource leak bug in wnd_extend()

2025-10-19T14:21:45+00:00

commit d68318471aa2e16222ebf492883e05a2d72b9b17 upstream. Add put_bh() to decrease the refcount of 'bh' after the job is finished, preventing a resource leak. Fixes: 3f3b442b5ad2 ("fs/ntfs3: Add bitmap") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Signed-off-by: Konstantin Komarov Signed-off-by: Greg Kroah-Hartman

fs/ntfs3: Use kvfree to free memory allocated by kvmalloc

2024-10-17T13:10:34+00:00

commit ddb17dc880eeaac37b5a6e984de07b882de7d78d upstream. Signed-off-by: Konstantin Komarov Signed-off-by: Greg Kroah-Hartman

fs/ntfs3: add prefix to bitmap_size() and use BITS_TO_U64()

2024-09-04T11:23:16+00:00

commit 3f5ef5109f6a054ce58b3bec7214ed76c9cc269f upstream. bitmap_size() is a pretty generic name and one may want to use it for a generic bitmap API function. At the same time, its logic is NTFS-specific, as it aligns to the sizeof(u64), not the sizeof(long) (although it uses ideologically right ALIGN() instead of division). Add the prefix 'ntfs3_' used for that FS (not just 'ntfs_' to not mix it with the legacy module) and use generic BITS_TO_U64() while at it. Suggested-by: Yury Norov # BITS_TO_U64() Reviewed-by: Przemek Kitszel Reviewed-by: Yury Norov Signed-off-by: Alexander Lobakin Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

fs/ntfs3: Missed error return

2024-08-19T03:45:10+00:00

[ Upstream commit 2cbbd96820255fff4f0ad1533197370c9ccc570b ] Fixes: 3f3b442b5ad2 ("fs/ntfs3: Add bitmap") Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin

fs/ntfs3: Use kvmalloc instead of kmalloc(... __GFP_NOWARN)

2023-11-08T16:26:46+00:00

[ Upstream commit fc471e39e38fea6677017cbdd6d928088a59fc67 ] Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin

fs/ntfs3: Refactoring of various minor issues

2023-05-17T09:50:26+00:00

commit 6827d50b2c430c329af442b64c9176d174f56521 upstream. Removed unused macro. Changed null pointer checking. Fixed inconsistent indenting. Signed-off-by: Konstantin Komarov Cc: Rudi Heitbaum Signed-off-by: Greg Kroah-Hartman

fs/ntfs3: Use __GFP_NOWARN allocation at wnd_init()

2023-01-12T10:58:45+00:00

[ Upstream commit 0d0f659bf713662fabed973f9996b8f23c59ca51 ] syzbot is reporting too large allocation at wnd_init() [1], for a crafted filesystem can become wnd->nwnd close to UINT_MAX. Add __GFP_NOWARN in order to avoid too large allocation warning, than exhausting memory by using kvcalloc(). Link: https://syzkaller.appspot.com/bug?extid=fa4648a5446460b7b963 [1] Reported-by: syzot Signed-off-by: Tetsuo Handa Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin

fs/ntfs3: Fix slab-out-of-bounds read in ntfs_trim_fs

2022-12-31T12:14:34+00:00

[ Upstream commit 557d19675a470bb0a98beccec38c5dc3735c20fa ] Syzbot reports an out of bound access in ntfs_trim_fs. The cause of this is using a loop termination condition that compares window index (iw) with wnd->nbits instead of wnd->nwnd, due to which the index used for wnd->free_bits exceeds the size of the array allocated. Fix the loop condition. Fixes: 3f3b442b5ad2 ("fs/ntfs3: Add bitmap") Link: https://syzkaller.appspot.com/bug?extid=b892240eac461e488d51 Reported-by: syzbot+b892240eac461e488d51@syzkaller.appspotmail.com Signed-off-by: Abdun Nihaal Signed-off-by: Konstantin Komarov Signed-off-by: Sasha Levin

fs/ntfs3: Use min/max macros instated of ternary operators

2021-09-16T14:01:37+00:00

We can make code little bit more readable by using min/max macros. These were found with Coccinelle. Signed-off-by: Kari Argillander Signed-off-by: Konstantin Komarov

fs/ntfs3: Remove unneeded header files from c files

2021-09-13T16:41:46+00:00

We have lot of unnecessary headers in these files. Remove them so that we help compiler a little bit. Signed-off-by: Kari Argillander Signed-off-by: Konstantin Komarov