High · CVSS 7.8CVE-2025-37822

riscv: uprobes: Add missing fence.i after building the XOL bufferCVE-2025-37822

Answer in brief

CVE-2025-37822 records a High severity (CVSS 7.8) vulnerability in riscv: uprobes: Add missing fence.i after building the XOL buffer. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 8, 2025Updated Oct 15, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Oct 15, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 6 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.15:rc1::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=74784081aac8a0f3636965fc230e2d3b7cc123c6 <be6d98766ac952d38241d5a5b213f363afa421c3 \|\| >=74784081aac8a0f3636965fc230e2d3b7cc123c6 <b6d8d4d01ca8514fa89b05355f296758a91e2297 \|\| >=74784081aac8a0f3636965fc230e2d3b7cc123c6 <77c956152a3a7c7a18b68f3654f70565b2181d03 \|\| >=74784081aac8a0f3636965fc230e2d3b7cc123c6 <bcf6d3158c5902d92b6d62335af4422b7bf7c4e2 \|\| >=74784081aac8a0f3636965fc230e2d3b7cc123c6 <1dbb95a36499374c51b47ee8ae258a8862c20978 \|\| >=74784081aac8a0f3636965fc230e2d3b7cc123c6 <7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48	be6d98766ac952d38241d5a5b213f363afa421c3, b6d8d4d01ca8514fa89b05355f296758a91e2297, 77c956152a3a7c7a18b68f3654f70565b2181d03, bcf6d3158c5902d92b6d62335af4422b7bf7c4e2, 1dbb95a36499374c51b47ee8ae258a8862c20978, 7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48
Linux/Linuxgeneric	5.12	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to be6d98766ac952d38241d5a5b213f363afa421c3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 8, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: riscv: uprobes: Add missing fence.i after building the XOL buffer The XOL (execute out-of-line) buffer is used to single-step the replaced instruction(s) for uprobes. The RISC-V port was missing a proper fence.i (i$ flushing) after constructing the XOL buffer, which can result in incorrect execution of stale/broken instructions. This was found running the BPF selftests "test_progs: uprobe_autoattach, attach_probe" on the Spacemit K1/X60, where the uprobes tests randomly blew up.

Quoted source text, attributed separately from HOL analysis.