VulnerabilityPublished 18 Oct 2026

CVE-2026-98572: Linux kernel · bpf: Fix immediate JMP JEQ/JNE on MIPS32

Source GCVE Database

Authoritative record:CVE-2026-98572· Low

Not known to be exploited · fixed in db762fd96be225bd06161c9631160c755d891693 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in db762fd96be225bd06161c9631160c755d891693, beeae92e70e705e90a0d6d9b3b8498ee3b92f495, 1547e9f3a7d71971216e6dba30270cae13fe4e02 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-jqhp-gcf3-75rx

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < db762fd96be225bd06161c9631160c755d891693	Fixed in db762fd96be225bd06161c9631160c755d891693
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < beeae92e70e705e90a0d6d9b3b8498ee3b92f495	Fixed in beeae92e70e705e90a0d6d9b3b8498ee3b92f495
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < 1547e9f3a7d71971216e6dba30270cae13fe4e02	Fixed in 1547e9f3a7d71971216e6dba30270cae13fe4e02
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < 876ef04c75c2751acfd355606fca3eced71dec65	Fixed in 876ef04c75c2751acfd355606fca3eced71dec65
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0	Fixed in 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
LinuxLinux	Affected ≥ eb63cfcd2ee8ec3805f6881f43341f589c3d2278, < 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8	Fixed in 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix has been implemented in the Linux kernel to correct the instruction emitted for immediate JMP JEQ/JNE on MIPS32, replacing addu with addiu. Users should update to the fixed kernel version containing this patch. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel's BPF implementation on MIPS32 was fixed. The issue involved an incorrect instruction emitted for immediate JMP JEQ/JNE operations, causing invalid comparisons when the immediate operand was negative. This was due to using an addu instruction instead of addiu, leading to misinterpretation of the immediate value as a register. The flaw affected constant blinding via BPF_REG_AX. The vulnerability was identified with test_bpf on MIPS32r1 emulated by QEMU and has been resolved.

References

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