cbcvebase.
CVE-2025-37954
published 2025-05-20

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…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.30%
22.3th percentile
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.

Affected

32 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.29-1 (forky)linux 6.12.29-1 (forky)
linuxlinux
linuxlinux
linuxlinux>= 6.5.10 < 6.66.6
linuxlinux>= 81ba10959970d15c388bf29866b01b62f387e6a3 < 2ed98e89ebc2e1bc73534dc3c18cb7843a889ff92ed98e89ebc2e1bc73534dc3c18cb7843a889ff9
linuxlinux>= 81ba10959970d15c388bf29866b01b62f387e6a3 < 571dcf3d27b24800c171aea7b5e04ff06d10e2e9571dcf3d27b24800c171aea7b5e04ff06d10e2e9
linuxlinux>= 81ba10959970d15c388bf29866b01b62f387e6a3 < 2407265dc32bc8cc45b62a612c2a214ba9038e8b2407265dc32bc8cc45b62a612c2a214ba9038e8b
linuxlinux>= 81ba10959970d15c388bf29866b01b62f387e6a3 < 3ca02e63edccb78ef3659bebc68579c7224a6ca23ca02e63edccb78ef3659bebc68579c7224a6ca2
linuxlinux_kernel< 6.6.916.6.91
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.29-16.12.29-1
linuxlinux_kernel>= 0 < 6.12.29-16.12.29-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 6.13 < 6.14.76.14.7
linuxlinux_kernel>= 6.7 < 6.12.296.12.29
msrcazl3_kernel_6.6.85.1-4_on_azure_linux_3.0
msrcazure_linux_3.0_arm
msrcazure_linux_3.0_x64
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
ubuntulinux-aws
ubuntulinux-aws-6.8

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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