[SRU][Jammy-OEM-5.17/OEM-6.0][PATCH 0/1] CVE-2022-4842

[Yuxuan Luo]

[Impact]
The bug occours due to a misuse of `attr` variable instead of `attr_b`.  `attr`
is being initialized as NULL, then being derenfernced as `attr->res.data_size`.
This bug causes a crash of the ntfs3 driver itself, If compiled directly to the
kernel, it crashes the whole system.

[Backport]
It is a clean cherry pick.

[Test]
Compile and smoke tested.

[Potential Regression]
Expect minimal regression potential restricted within the scope.

Alon Zahavi (1):
  fs/ntfs3: Fix attr_punch_hole() null pointer derenference

 fs/ntfs3/attrib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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2.34.1