diff options
| author | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2024-09-09 14:39:10 +0200 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2024-10-01 11:19:07 +0200 |
| commit | d178944db36b3369b78a08ba520de109b89bf2a9 (patch) | |
| tree | 0e2c4cefd1b2aea257a231dc9f3f190fdd070e7a /fs/ntfs3 | |
| parent | fs/ntfs3: Fix possible deadlock in mi_read (diff) | |
| download | linux-d178944db36b3369b78a08ba520de109b89bf2a9.tar.xz linux-d178944db36b3369b78a08ba520de109b89bf2a9.zip | |
fs/ntfs3: Additional check in ni_clear()
Checking of NTFS_FLAGS_LOG_REPLAYING added to prevent access to
uninitialized bitmap during replay process.
Reported-by: syzbot+3bfd2cc059ab93efcdb4@syzkaller.appspotmail.com
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3')
| -rw-r--r-- | fs/ntfs3/frecord.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c index 7d4e54161291..41c7ffad2790 100644 --- a/fs/ntfs3/frecord.c +++ b/fs/ntfs3/frecord.c @@ -102,7 +102,9 @@ void ni_clear(struct ntfs_inode *ni) { struct rb_node *node; - if (!ni->vfs_inode.i_nlink && ni->mi.mrec && is_rec_inuse(ni->mi.mrec)) + if (!ni->vfs_inode.i_nlink && ni->mi.mrec && + is_rec_inuse(ni->mi.mrec) && + !(ni->mi.sbi->flags & NTFS_FLAGS_LOG_REPLAYING)) ni_delete_all(ni); al_destroy(ni); |