CVE-2025-37954

In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in open_cached_dir with lease breaks A pre-existing valid cfid returned from find_or_create_cached_dir might race with a lease break, meaning open_cached_dir doesn't consider it valid, and thinks it's newly-constructed. This leaks a dentry reference if the allocation occurs before the queued lease break work runs. Avoid the race by extending holding the cfid_list_lock across find_or_create_cached_dir and when the result is checked.

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/2407265dc32bc8cc45b62a612c2a214ba9038e8b	Patch
https://git.kernel.org/stable/c/2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9	Patch
https://git.kernel.org/stable/c/3ca02e63edccb78ef3659bebc68579c7224a6ca2	Patch
https://git.kernel.org/stable/c/571dcf3d27b24800c171aea7b5e04ff06d10e2e9	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:6.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.15:rc5::::::

History

No history.

Information

Published : 2025-05-20 16:15

Updated : 2025-11-14 17:03

NVD link : CVE-2025-37954

Mitre link : CVE-2025-37954

CVE.ORG link : CVE-2025-37954

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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