Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e5e0ae3237584ebef510366c4cb3d5cc7c22b610; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 249c831183fb806c8e3b14c7c4c1d2fb68cf37fb; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ae59b3025609d5a0a39cf5b2b94e2467f6231573; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 35f6b3281efd44d19110574663bc17a610bc73b9; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 47dad9eea75d33212d3d2cea10e7ed6a1bfc0713; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 17a08791d428885d00e510864283a7b839792368; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4c788c6f921b22f9b6c3f316c4a071c05683e7de |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.86 through 6.12.*; unaffected 6.18.27 through 6.18.*; unaffected 7.0.4 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e5e0ae3237584ebef510366c4cb3d5cc7c22b610
- https://git.kernel.org/stable/c/249c831183fb806c8e3b14c7c4c1d2fb68cf37fb
- https://git.kernel.org/stable/c/ae59b3025609d5a0a39cf5b2b94e2467f6231573
- https://git.kernel.org/stable/c/35f6b3281efd44d19110574663bc17a610bc73b9
- https://git.kernel.org/stable/c/47dad9eea75d33212d3d2cea10e7ed6a1bfc0713
- https://git.kernel.org/stable/c/87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca
- https://git.kernel.org/stable/c/17a08791d428885d00e510864283a7b839792368
- https://git.kernel.org/stable/c/4c788c6f921b22f9b6c3f316c4a071c05683e7de
ADP enrichment
No English description supplied.