Prince Kumar Maurya e976988bc2 fs/sysv: Null check to prevent null-ptr-deref bug ...

commit ea2b62f305893992156a798f665847e0663c9f41 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-08-11 11:33:56 +02:00

..

balloc.c

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dir.c

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file.c

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ialloc.c

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inode.c

sysv: return 'err' instead of 0 in __sysv_write_inode

2018-12-17 09:28:48 +01:00

itree.c

fs/sysv: Null check to prevent null-ptr-deref bug

2023-08-11 11:33:56 +02:00

Kconfig

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Makefile

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namei.c

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super.c

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sysv.h

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