fs/ntfs3: Fix an NULL dereference bug
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.5epss 0.2%
probabilidad de explotación
0.2%top 88% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix an NULL dereference bug
The issue here is when this is called from ntfs_load_attr_list(). The
"size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow
on a 64bit systems but on 32bit systems the "+ 1023" can overflow and
the result is zero. This means that the kmalloc will succeed by
returning the ZERO_SIZE_PTR and then the memcpy() will crash with an
Oops on the next line.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
Linux · LinuxReferencias
https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0bhttps://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6chttps://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7