CVE-2026-46023

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in create_dirty_log() The argument count calculation in create_dirty_log() performs `*args_used = 2 + param_count` before validating against argc. When a user provides a param_count close to UINT_MAX via the device mapper table string, this unsigned addition wraps around to a small value, causing the subsequent `argc < *args_used` check to be bypassed. The overflowed param_count is then passed as argc to dm_dirty_log_create(), where it can cause out-of-bounds reads on the argv array. Fix by comparing param_count against argc - 2 before performing the addition, following the same pattern used by parse_features() in the same file. Since argc >= 2 is already guaranteed, the subtraction is safe.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*

History

16 Jun 2026, 15:55

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/17a08791d428885d00e510864283a7b839792368 - () https://git.kernel.org/stable/c/17a08791d428885d00e510864283a7b839792368 - Patch
References () https://git.kernel.org/stable/c/249c831183fb806c8e3b14c7c4c1d2fb68cf37fb - () https://git.kernel.org/stable/c/249c831183fb806c8e3b14c7c4c1d2fb68cf37fb - Patch
References () https://git.kernel.org/stable/c/35f6b3281efd44d19110574663bc17a610bc73b9 - () https://git.kernel.org/stable/c/35f6b3281efd44d19110574663bc17a610bc73b9 - Patch
References () https://git.kernel.org/stable/c/47dad9eea75d33212d3d2cea10e7ed6a1bfc0713 - () https://git.kernel.org/stable/c/47dad9eea75d33212d3d2cea10e7ed6a1bfc0713 - Patch
References () https://git.kernel.org/stable/c/4c788c6f921b22f9b6c3f316c4a071c05683e7de - () https://git.kernel.org/stable/c/4c788c6f921b22f9b6c3f316c4a071c05683e7de - Patch
References () https://git.kernel.org/stable/c/87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca - () https://git.kernel.org/stable/c/87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca - Patch
References () https://git.kernel.org/stable/c/ae59b3025609d5a0a39cf5b2b94e2467f6231573 - () https://git.kernel.org/stable/c/ae59b3025609d5a0a39cf5b2b94e2467f6231573 - Patch
References () https://git.kernel.org/stable/c/e5e0ae3237584ebef510366c4cb3d5cc7c22b610 - () https://git.kernel.org/stable/c/e5e0ae3237584ebef510366c4cb3d5cc7c22b610 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
CWE CWE-190

01 Jun 2026, 17:17

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/249c831183fb806c8e3b14c7c4c1d2fb68cf37fb -
  • () https://git.kernel.org/stable/c/ae59b3025609d5a0a39cf5b2b94e2467f6231573 -
  • () https://git.kernel.org/stable/c/e5e0ae3237584ebef510366c4cb3d5cc7c22b610 -

27 May 2026, 14:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52


NVD link : CVE-2026-46023

Mitre link : CVE-2026-46023

CVE.ORG link : CVE-2026-46023


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-190

Integer Overflow or Wraparound