Prince Kumar Maurya afd9a31b5a fs/sysv: Null check to prevent null-ptr-deref bug ...

commit ea2b62f305 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 15:13:58 +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

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itree.c

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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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