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Debian Security Bug TrackerDEBIANCVE:CVE-2024-26705

HistoryApr 03, 2024 - 3:15 p.m.

CVE-2024-26705

2024-04-0315:15:53

Debian Security Bug Tracker

security-tracker.debian.org

linux

kernel

vulnerability

resolved

btlb

crash

cpu

hotplug

firmware

write access

segfault

permissions

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 6.1.94-1linux_6.1.94-1_all.deb
Debian11alllinux< 5.10.218-1linux_5.10.218-1_all.deb
Debian999alllinux< 6.7.7-1linux_6.7.7-1_all.deb
Debian13alllinux< 6.7.7-1linux_6.7.7-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 6.1.94-1	linux_6.1.94-1_all.deb
Debian	11	all	linux	< 5.10.218-1	linux_5.10.218-1_all.deb
Debian	999	all	linux	< 6.7.7-1	linux_6.7.7-1_all.deb
Debian	13	all	linux	< 6.7.7-1	linux_6.7.7-1_all.deb