CVE-2026-43358

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.17:-::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc7::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::

History

11 Nov 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: btrfs: añadir desbloqueo RCU faltante en la ruta de error en try_release_subpage_extent_buffer() Llamar a rcu_read_lock() antes de salir del bucle en try_release_subpage_extent_buffer() porque hay una llamada a rcu_read_unlock() después del bucle. Esto ha sido detectado por el analizador de seguridad de hilos de Clang.

Information

Published : 2026-05-08 15:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43358

Mitre link : CVE-2026-43358

CVE.ORG link : CVE-2026-43358

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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