CVE-2024-42253

MEDIUM EPSS 6.0%
Published Aug 8, 20241y ago · Modified Jun 17, 20262w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Aug 8, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <6.1.101
linuxlinux_kernel*≥6.2  –  <6.6.42
linuxlinux_kernel*≥6.7  –  <6.9.11
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2
    Patch