CVE-2025-37879 — Out-of-bounds Read in Linux

CWE-125 — Out-of-bounds ReadCWE-681 — Incorrect Conversion between Numeric Types42 documents7 sources
Severity
7.1HIGHNVD
OSV3.2
EPSS
0.1%
top 82.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
LinuxLinux KernelDebian Linux+7 more
Timeline
PublishedMay 9
Latest updateMar 25

Description

In the Linux kernel, the following vulnerability has been resolved: 9p/net: fix improper handling of bogus negative read/write replies In p9_client_write() and p9_client_read_once(), if the server incorrectly replies with success but a negative write/read count then we would consider written (negative) 3)

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages11 packages

▶NVDlinux/linux_kernel6.2 — 6.6.89+3
▶Debianlinux/linux_kernel< 6.1.137-1+2
▶Ubuntulinux/linux_kernel< 6.8.0-100.100+1

Also affects: Debian Linux 11.0

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

21
OSV
linux-azure-6.8 vulnerabilities↗2026-03-25
▶
OSV
linux-azure-fips vulnerabilities↗2026-03-04
▶
OSV
linux-azure vulnerabilities↗2026-03-04
▶
OSV
linux-ibm, linux-ibm-6.8 vulnerabilities↗2026-02-24
▶
OSV
linux-xilinx vulnerabilities↗2026-02-24
▶

📋Vendor Advisories

20
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-25
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2026-03-04
▶
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities↗2026-03-04
▶
Ubuntu
Linux kernel (Xilinx) vulnerabilities↗2026-02-24
▶
Ubuntu
Linux kernel (IBM) vulnerabilities↗2026-02-24
▶
CVE-2025-37879 — Out-of-bounds Read in Linux | cvebase