CVE-2026-23357

MEDIUM EPSS 1.0%
Published Mar 25, 20263mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but for the error path. To solve this issue move the call to free_irq() after the lock is released. Setting `priv->force_quit = 1` beforehand ensure that the IRQ handler will exit right away once it acquired the lock.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 15

VendorProductVersionRange
linuxlinux_kernel*≥2.6.34.1  –  <5.10.253
linuxlinux_kernel*≥5.11  –  <5.15.203
linuxlinux_kernel*≥5.16  –  <6.1.167
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.77
linuxlinux_kernel*≥6.13  –  <6.18.17
linuxlinux_kernel*≥6.19  –  <6.19.7
linuxlinux_kernel2.6.34any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/416c18ecddafab0ed09be1e7b9d2f448f3d4db16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/739454057572cb0948658d1142f3fa2c6966465c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/416c18ecddafab0ed09be1e7b9d2f448f3d4db16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/739454057572cb0948658d1142f3fa2c6966465c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e
    Patch