CVE-2026-43358

MEDIUM EPSS 2.2%
Published May 8, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: add missing RCU unlock in error path in try_release_subpage_extent_buffer() Call rcu_read_lock() before exiting the loop in try_release_subpage_extent_buffer() because there is a rcu_read_unlock() call past the loop. This has been detected by the Clang thread-safety analyzer.

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
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥6.16.4  –  <6.17
linuxlinux_kernel*≥6.17.1  –  <6.18.19
linuxlinux_kernel*≥6.19  –  <6.19.9
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/35b0c8768e848e1b7e32052db36b5fa59b6a33a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e1ab71f74a1e61f1254dff128a764fdebaec0b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2840e33127ce0eea880504b7f133e780f567a9b
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/35b0c8768e848e1b7e32052db36b5fa59b6a33a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e1ab71f74a1e61f1254dff128a764fdebaec0b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2840e33127ce0eea880504b7f133e780f567a9b
    Patch