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CVE-2024-26705

parisc: BTLB: Fix crash when setting up BTLB at CPU bringup PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: parisc: BTLB: Fix crash when setting up BTLB at CPU bringup When using hotplug and bringing up a 32-bit CPU, ask the firmware about the BTLB information to set up the static (block) TLB entries. For that write access to the static btlb_info struct is needed, but since it is marked __ro_after_init the kernel segfaults with missing write permissions. Fix the crash by dropping the __ro_after_init annotation.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 before 54944f45470af5965fb9c28cf962ec30f38a8f5b; affected e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 before aa52be55276614d33f22fbe7da36c40d6432d10b; affected e5ef93d02d6c9cc3a14e7348481c9e41a528caa1 before 913b9d443a0180cf0de3548f1ab3149378998486
Linux / Linuxaffected 6.6; unaffected 0 before 6.6; unaffected 6.6.18 through 6.6.*; unaffected 6.7.6 through 6.7.*; unaffected 6.8 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.