CVE-2025-40088Out-of-bounds Read in Linux

CWE-125Out-of-bounds Read55 documents7 sources
Severity
7.8HIGHOSV
OSV5.5OSV3.2
No vector
EPSS
0.1%
top 82.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedOct 30
Latest updateApr 13

Description

In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() The hfsplus_strcasecmp() logic can trigger the issue: [ 117.317703][ T9855] ================================================================== [ 117.318353][ T9855] BUG: KASAN: slab-out-of-bounds in hfsplus_strcasecmp+0x1bc/0x490 [ 117.318991][ T9855] Read of size 2 at addr ffff88802160f40c by task repro/9855 [ 117.319577][ T9855] [ 117.319773][ T9855] CPU: 0 UID: 0

Affected Packages7 packages

debiandebian/linux< linux 6.1.158-1 (bookworm)
debiandebian/linux-6.1< linux 6.1.158-1 (bookworm)
Linuxlinux/linux_kernel2.6.125.4.301+6
Debianlinux/linux_kernel< 5.10.247-1+3
Ubuntulinux/linux_kernel< 5.15.0-170.180+2

🔴Vulnerability Details

27
OSV
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OSV
linux-raspi, linux-raspi-realtime vulnerabilities2026-04-01
OSV
linux-azure-6.8 vulnerabilities2026-03-25
OSV
linux-azure vulnerabilities2026-03-25
OSV
linux-aws-6.8 vulnerabilities2026-03-23

📋Vendor Advisories

27
Ubuntu
Linux kernel (Azure) vulnerabilities2026-04-13
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-04-09
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-04-09
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities2026-04-01
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities2026-04-01