Bug 2426052 (CVE-2022-50814) - CVE-2022-50814 kernel: crypto: hisilicon/zip - fix mismatch in get/set sgl_sge_nr
Summary: CVE-2022-50814 kernel: crypto: hisilicon/zip - fix mismatch in get/set sgl_sg...
Keywords:
Status: NEW
Alias: CVE-2022-50814
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:05 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:17 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-12-30 13:05:14 UTC 
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.
Comment 1 Alexander B 2025-12-31 12:37:22 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123014-CVE-2022-50814-486d@gregkh/T
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