CVE-2026-23362

MEDIUM EPSS 0.8%
Published Mar 25, 20263mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix locking for bcm_op runtime updates Commit c2aba69d0c36 ("can: bcm: add locking for bcm_op runtime updates") added a locking for some variables that can be modified at runtime when updating the sending bcm_op with a new TX_SETUP command in bcm_tx_setup(). Usually the RX_SETUP only handles and filters incoming traffic with one exception: When the RX_RTR_FRAME flag is set a predefined CAN frame is sent when a specific RTR frame is received. Therefore the rx bcm_op uses bcm_can_tx() which uses the bcm_tx_lock that was only initialized in bcm_tx_setup(). Add the missing spin_lock_init() when allocating the bcm_op in bcm_rx_setup() to handle the RTR case properly.

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
0.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 17

VendorProductVersionRange
linuxlinux_kernel*≥5.4.294  –  <5.5
linuxlinux_kernel*≥5.10.238  –  <5.10.253
linuxlinux_kernel*≥5.15.185  –  <5.15.203
linuxlinux_kernel*≥6.1.141  –  <6.1.167
linuxlinux_kernel*≥6.6.93  –  <6.6.130
linuxlinux_kernel*≥6.12.31  –  <6.12.77
linuxlinux_kernel*≥6.14.9  –  <6.15
linuxlinux_kernel*≥6.15.1  –  <6.18.17
linuxlinux_kernel*≥6.19  –  <6.19.7
linuxlinux_kernel6.15any
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/0904037e713f787d1376e1d349c3bdf6c3105881
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70e951afad4c025261fe3c952d2b07237e320a01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/800f26f11ae37b17f58e0001f28a47dd75c26557
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8215ba7bc99e84e66fd6938874ec4330a9d96518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bcf2d847adb82b2c617456f6da17ac5e6c75285
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c35636e91e392e1540949bbc67932167cb48bc3a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c85b96eaf766d8f066b1139a17a51efa2f6627ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f0c349b2c21b220af5ba19f29b885e222958d796
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0904037e713f787d1376e1d349c3bdf6c3105881
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70e951afad4c025261fe3c952d2b07237e320a01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/800f26f11ae37b17f58e0001f28a47dd75c26557
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8215ba7bc99e84e66fd6938874ec4330a9d96518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bcf2d847adb82b2c617456f6da17ac5e6c75285
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c35636e91e392e1540949bbc67932167cb48bc3a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c85b96eaf766d8f066b1139a17a51efa2f6627ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f0c349b2c21b220af5ba19f29b885e222958d796
    Patch