cbcvebase.
CVE-2025-37777
published 2025-05-01

CVE-2025-37777: In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __smb2_lease_break_noti() Move tcp_transport free to…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.37%
31.1th percentile
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __smb2_lease_break_noti() Move tcp_transport free to ksmbd_conn_free. If ksmbd connection is referenced when ksmbd server thread terminates, It will not be freed, but conn->tcp_transport is freed. __smb2_lease_break_noti can be performed asynchronously when the connection is disconnected. __smb2_lease_break_noti calls ksmbd_conn_write, which can cause use-after-free when conn->ksmbd_transport is already freed.

Affected

48 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.27-1 (forky)linux 6.12.27-1 (forky)
linuxlinux——
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 1da8bd9a10ecd718692732294d15fd801c0eabb51da8bd9a10ecd718692732294d15fd801c0eabb5
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < e59796fc80603bcd8569d4d2e10b213c1918edb4e59796fc80603bcd8569d4d2e10b213c1918edb4
linuxlinux>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de
linuxlinux_kernel——
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 5.15 < 6.6.1016.6.101
linuxlinux_kernel>= 6.13 < 6.14.46.14.4
linuxlinux_kernel>= 6.7 < 6.12.266.12.26
msrcazl3_kernel_6.6.96.2-1_on_azure_linux_3.0——
msrcazl3_kernel_6.6.96.2-2_on_azure_linux_3.0——
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0——
ubuntuaws——
ubuntuaws-6.8——
ubuntuaws-hwe——
ubuntuazure——
ubuntuazure-4.15——
ubuntugcp——
ubuntugcp-4.15——

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_msrc5.5MEDIUM
vendor_ubuntu3.2LOW
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