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(parent: b7a9a50) | patch
fs/sysv: Null check to prevent null-ptr-deref bug
authorPrince Kumar Maurya <princekumarmaurya06@gmail.com>
Wed, 31 May 2023 01:31:41 +0000 (18:31 -0700)
committerChristian Brauner <brauner@kernel.org>
Thu, 1 Jun 2023 07:51:06 +0000 (09:51 +0200)
commitea2b62f305893992156a798f665847e0663c9f41
tree4978b5a77ed5f8f0e9923e8d8340917e578e72a9tree | snapshot
parentb7a9a503c38d665c05a789132b632d81ec0b2703commit | diff
fs/sysv: Null check to prevent null-ptr-deref bug

sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on
that leads to the null-ptr-deref bug.

Reported-by: syzbot+aad58150cbc64ba41bdc@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=aad58150cbc64ba41bdc
Signed-off-by: Prince Kumar Maurya <princekumarmaurya06@gmail.com>
Message-Id: <20230531013141.19487-1-princekumarmaurya06@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
fs/sysv/itree.c diff | blob | history
Domain: System / Kernel;