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CVE-2026-98572

bpf: Fix immediate JMP JEQ/JNE on MIPS32

N/A
Published: October 18, 2026 at 03:18 PM UTC
Updated: October 19, 2026 at 10:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix immediate JMP JEQ/JNE on MIPS32 An addu instruction was emitted instead of addiu, causing the immediate value 1 to be interpreted as register $at. This made the comparison result invalid when the immediate operand was negative. Note that $at is mapped to BPF_REG_AX, which is used for constant blinding. Fix the instruction to use the immediate form. Found with test_bpf on MIPS32r1 emulated by QEMU.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
5.16eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.112 (unaffected)
Vendor states this is fixed in 6.18.55 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2.9 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

Source: cverecord
https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02
Source: cverecord
https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495
Source: cverecord
https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
Source: cverecord
https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65
Source: cverecord
https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8
Source: cverecord
https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693

Quick Info

StatusRECEIVED

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