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| author |   Kari Argillander <kari.argillander@gmail.com> | 2021-08-25 21:24:35 +0300 |
|---|---|---|
| committer |   Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2021-09-02 18:51:00 +0300 |
| commit | d4e8e135a9af7d8d939bba1874ab314322fc2dc2 (patch) | |
| tree | cf9fc5b6972a8024f324aed3d02970aaa2ac962d /mm/mmap.c | |
| parent | fs/ntfs3: Restyle comments to better align with kernel-doc (diff) | |
| download | linux-dev-d4e8e135a9af7d8d939bba1874ab314322fc2dc2.tar.xz linux-dev-d4e8e135a9af7d8d939bba1874ab314322fc2dc2.zip | |
fs/ntfs3: Fix integer overflow in ni_fiemap with fiemap_prep()
Use fiemap_prep() to check valid flags. It also shrink request scope
(@len) to what the fs can actually handle.
This address following Smatch static checker warning:
fs/ntfs3/frecord.c:1894 ni_fiemap()
warn: potential integer overflow from user 'vbo + len'
Because fiemap_prep() shrinks @len this cannot happened anymore.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: lore.kernel.org/ntfs3/20210825080440.GA17407@kili/
Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'mm/mmap.c')
0 files changed, 0 insertions, 0 deletions