bpf: Fix immediate JMP JEQ/JNE on MIPS32
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.
CVE-2026-98572
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98572
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "1547e9f3a7d71971216e6dba30270cae13fe4e02",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "beeae92e70e705e90a0d6d9b3b8498ee3b92f495",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "876ef04c75c2751acfd355606fca3eced71dec65",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "db762fd96be225bd06161c9631160c755d891693",
"versionType": "git"
}
],
"programFiles": [
"arch/mips/net/bpf_jit_comp32.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/mips/net/bpf_jit_comp32.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98572
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38592 · Revision 1
- Added to Heist Feed
- Publisher date