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CVE-2025-38112
published 2025-07-03

CVE-2025-38112: In the Linux kernel, the following vulnerability has been resolved: net: Fix TOCTOU issue in sk_is_readable() sk->sk_prot->sock_is_readable is a valid function…

medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
In the Linux kernel, the following vulnerability has been resolved: net: Fix TOCTOU issue in sk_is_readable() sk->sk_prot->sock_is_readable is a valid function pointer when sk resides in a sockmap. After the last sk_psock_put() (which usually happens when socket is removed from sockmap), sk->sk_prot gets restored and sk->sk_prot->sock_is_readable becomes NULL. This makes sk_is_readable() racy, if the value of sk->sk_prot is reloaded after the initial check. Which in turn may lead to a null pointer dereference. Ensure the function pointer does not turn NULL after the check.

Affected

35 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < c2b26638476baee154920bb587fc94ff1bf04336c2b26638476baee154920bb587fc94ff1bf04336
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 6fa68d7eab34d448a61aa24ea31e68b3231ed20d6fa68d7eab34d448a61aa24ea31e68b3231ed20d
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 8926a7ef1977a832dd6bf702f1a99303dbf15b158926a7ef1977a832dd6bf702f1a99303dbf15b15
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < ff55c85a923e043d59d26b20a673a1b4a219c310ff55c85a923e043d59d26b20a673a1b4a219c310
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 1e0de7582ceccbdbb227d4e0ddf65732f92526da1e0de7582ceccbdbb227d4e0ddf65732f92526da
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 1b367ba2f94251822577daed031d6b9a9e11ba911b367ba2f94251822577daed031d6b9a9e11ba91
linuxlinux>= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 2660a544fdc0940bba15f70508a46cf9a64912302660a544fdc0940bba15f70508a46cf9a6491230
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 6.12.35-16.12.35-1
linuxlinux_kernel>= 0 < 5.15.0-156.1665.15.0-156.166
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 4.17 < 5.10.2395.10.239
linuxlinux_kernel>= 5.11 < 5.15.1865.15.186
linuxlinux_kernel>= 5.16 < 6.1.1426.1.142
linuxlinux_kernel>= 6.13 < 6.15.36.15.3
linuxlinux_kernel>= 6.2 < 6.6.946.6.94
linuxlinux_kernel>= 6.7 < 6.12.346.12.34
msrcazl3_kernel_6.6.92.2-2_on_azure_linux_3.0

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM