PT-2025-17268 · Linux+4 · Linux Kernel+4

Vincent · Published 2025-03-30 · Updated 2026-03-13 · CVE-2025-37893

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an off-by-one error in the build prologue() function when running BPF programs with tailcalls on LoongArch, causing a kernel hard lockup. The problem arises from the JIT compiling process, where the first pass sets flags and the second pass generates JIT code based on those flags. When BPF programs mix bpf2bpf and tailcalls, build prologue() generates a different number of instructions in the two passes, leading to an incorrect epilogue offset and causing the lockup.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-193

Related Identifiers

ALT-PU-2025-12647

ALT-PU-2025-7195

AZL-61445

BDU:2026-03461

CVE-2025-37893

ECHO-CE17-FDE2-9488

MGASA-2025-0142

MGASA-2025-0146

OESA-2025-1463

OESA-2025-1464

Affected Products

Alt Linux

Astra Linux

Debian

Linux Kernel

Red Os

References · 74

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37893.json · Exploit
• https://advisories.mageia.org/MGASA-2025-0146.html · Security Note
• https://git.kernel.org/stable/c/48b904de2408af5f936f0e03f48dfcddeab58aa0 · Patch
• https://cve.org/CVERecord?id=CVE-2025-37893 · Security Note
• https://ubuntu.com/security/CVE-2025-37893 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-22045 · Security Note
• https://git.kernel.org/stable/c/c74d95a5679741ef428974ab788f5b0758dc78ae · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-22095 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-22015 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-58099 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-22048 · Security Note
• https://osv.dev/vulnerability/AZL-61445 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-58093 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21979 · Security Note
• http://repo.red-soft.ru/redos/8.0/x86_64/updates · Vendor Advisory