CVE-2025-39686Linux vulnerability

30 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 5
Latest updateMar 25

Description

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insn_rw_emulate_bits() do insn->n samples The `insn_rw_emulate_bits()` function is used as a default handler for `INSN_READ` instructions for subdevices that have a handler for `INSN_BITS` but not for `INSN_READ`. Similarly, it is used as a default handler for `INSN_WRITE` instructions for subdevices that have a handler for `INSN_BITS` but not for `INSN_WRITE`. It works by emulating the `INSN_READ` or `INSN_WRITE`

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

NVDlinux/linux_kernel2.6.295.15.190+5
Debianlinux/linux_kernel< 6.1.153-1+2
CVEListV5linux/linuxed9eccbe8970f6eedc1b978c157caf1251a896d4ab77e85bd3bc006ef40738f26f446a660813da44+6

Also affects: Debian Linux 11.0

Patches

🔴Vulnerability Details

3
GHSA
GHSA-v7fr-3jhm-3qhw: In the Linux kernel, the following vulnerability has been resolved: comedi: Make insn_rw_emulate_bits() do insn->n samples The `insn_rw_emulate_bits2025-09-05
OSV
CVE-2025-39686: In the Linux kernel, the following vulnerability has been resolved: comedi: Make insn_rw_emulate_bits() do insn->n samples The `insn_rw_emulate_bits()2025-09-05
CVEList
comedi: Make insn_rw_emulate_bits() do insn->n samples2025-09-05

📋Vendor Advisories

26
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Xilinx) vulnerabilities2026-02-24
Ubuntu
Linux kernel (IBM) vulnerabilities2026-02-24
CVE-2025-39686 — Linux vulnerability | cvebase