CVE-2026-43171None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region The current logic at cper_print_fw_err() doesn't check if the error record length is big enough to handle offset. On a ba…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
EFI/CPER: don't dump the entire memory region
The current logic at cper_print_fw_err() doesn't check if the error record length is big enough to handle offset. On a bad firmware, if the ofset is above the actual record, length -= offset will underflow, making it dump the entire memory.
The end result can be:
Fix it by checking if the section length is too small before doing a hex dump.
[ rjw: Subject tweaks ]
Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 02de64ab54b4bb0f1b21bb324aeff3b08612be33Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 0e09b522f2622841389c3b2f9ac4969e35c0809dLinux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 64ae5aaa7ac93c83da456039e8ec747bfa8a7cffLinux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 5a9b1dda8481b82851a655c3bcc5b44879b95334Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 7780c0bad2a3a70a8c0113a33c02f4151d901eb3Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < a8419f5f2c5f2d80848ddabb2b95cf0da84a5f91Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 54e131db4cdffd946db890ff33ff2647053fd4f6Linux >= 3d8c11efd528d56972d44ed0de51c4e11a9a4fa9 < 55cc6fe5716f678f06bcb95140882dfa684464ecLinux 5.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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