LoongArch: BPF: Zero-extend signed ALU32 div/mod results
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Zero-extend signed ALU32 div/mod results ALU32 operations write a 32-bit result and leave the upper 32 bits of the BPF register zero. The LoongArch JIT sign-extends the result of signed ALU32 BPF_DIV and BPF_MOD (off=1), so a negative 32-bit quotient or remainder leaves bits 63:32 set in JITted code while the verifier and interpreter model those bits as zero. Keep sign-extension on the operands, which signed divide needs, and zero-extend the ALU32 result after the divide or modulo instruction, matching the unsigned ALU32 div/mod paths and every other ALU32 operation in this JIT.
CVE-2026-68295
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-2026-68295
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": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
"lessThan": "7577cca85f2d4590c9d9423ba72ef54181a713c9",
"versionType": "git"
},
{
"status": "affected",
"version": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
"lessThan": "16656c3d734693be3d8a36dbf9d09142b69f3ddc",
"versionType": "git"
},
{
"status": "affected",
"version": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
"lessThan": "716cb29dbed4d62e9e108950a1a82bcba4cc2d45",
"versionType": "git"
},
{
"status": "affected",
"version": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
"lessThan": "dacd348b8a993373576fe2ee2d8b114740ba57a6",
"versionType": "git"
}
],
"programFiles": [
"arch/loongarch/net/bpf_jit.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/loongarch/net/bpf_jit.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-68295
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46460 · Revision 1
- Added to Heist Feed
- Publisher date