CVE-2026-93237 Linux Kernel - Memory Corruption

Linux kernel contains a memory corruption vulnerability in LoongArch architecture caused by improper bounds in get_free_mem_region() and mhp_get_pluggable_range() due to missing DIRECT_MAP_PHYSMEM_END definition, letting attackers cause page table corruption, exploit requires specific CPU configurations with fewer physical address bits.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Memory Corruption
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
24 September 2026
Updated
15 October 2026

Vendor fix

Update to the Linux kernel version that includes the DIRECT_MAP_PHYSMEM_END definition fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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