CVE-2026-98572

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Source
https://cve.org/CVERecord?id=CVE-2026-98572
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98572.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98572
Downstream
Published
2026-10-18T15:18:38Z
Modified
2026-10-20T02:31:00Z
Summary
bpf: Fix immediate JMP JEQ/JNE on MIPS32
Details

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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98572.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Fixed
1547e9f3a7d71971216e6dba30270cae13fe4e02
Fixed
beeae92e70e705e90a0d6d9b3b8498ee3b92f495
Fixed
6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
Fixed
876ef04c75c2751acfd355606fca3eced71dec65
Fixed
1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8
Fixed
db762fd96be225bd06161c9631160c755d891693

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98572.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.112
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.55
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98572.json"