Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/zip - fix mismatch in get/set sgl_sge_nr KASAN reported this Bug: [17619.659757] BUG: KASAN: global-out-of-bounds in param_get_int+0x34/0x60 [17619.673193] Read of size 4 at addr fffff01332d7ed00 by task read_all/1507958 ... [17619.698934] The buggy address belongs to the variable: [17619.708371] sgl_sge_nr+0x0/0xffffffffffffa300 [hisi_zip] There is a mismatch in hisi_zip when get/set the variable sgl_sge_nr. The type of sgl_sge_nr is u16, and get/set sgl_sge_nr by param_get/set_int. Replacing param_get/set_int to param_get/set_ushort can fix this bug.

References 5

• git.kernel.org https://git.kernel.org/stable/c/272093471305261c4e07a2fc97c2d1e53cd56819
• git.kernel.org https://git.kernel.org/stable/c/5eaebd19fbb0e26e73a34f55d3b1dc310df0eb15
• git.kernel.org https://git.kernel.org/stable/c/d74f9340097a881869c4c22ca376654cc2516ecc
• git.kernel.org https://git.kernel.org/stable/c/d88b88514ef28515ccfa1f1787c2aedef75a79dd
• git.kernel.org https://git.kernel.org/stable/c/f8a983d6e01b198320d310cb1326364d7d973b2a

Remediation