CVE-2025-40193
xtensa: simdisk: add input size check in proc_write_simdisk
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: xtensa: simdisk: add input size check in proc_write_simdisk A malicious user could pass an arbitrarily bad value to memdup_user_nul(), potentially causing kernel crash. This follows the same pattern as commit ee76746387f6 ("netdevsim: prevent bad user input in nsim_dev_health_break_write()")
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 12, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
b6c7e873daf765e41233b9752083b66442703b7a < f40405ccfb87b71175f2d5d004c0b8a0aebcc2cf b6c7e873daf765e41233b9752083b66442703b7a < 151bd88859474cdaccc1e4c8b21fbf72dbba2ab4 b6c7e873daf765e41233b9752083b66442703b7a < d381de7fd4cdc928ede96987dc64b133e6480dd6 b6c7e873daf765e41233b9752083b66442703b7a < a0c2c36d864ef3676b05cfd8c58b72ee3214cb1a b6c7e873daf765e41233b9752083b66442703b7a < 5d5f08fd0cd970184376bee07d59f635c8403f63
Linux / Linux
3.9
References
git.kernel.org: https://git.kernel.org/stable/c/f40405ccfb87b71175f2d5d004c0b8a0aebcc2cf git.kernel.org: https://git.kernel.org/stable/c/151bd88859474cdaccc1e4c8b21fbf72dbba2ab4 git.kernel.org: https://git.kernel.org/stable/c/d381de7fd4cdc928ede96987dc64b133e6480dd6 git.kernel.org: https://git.kernel.org/stable/c/a0c2c36d864ef3676b05cfd8c58b72ee3214cb1a git.kernel.org: https://git.kernel.org/stable/c/5d5f08fd0cd970184376bee07d59f635c8403f63