CVE-2024-57791

net/smc: check return value of sock_recvmsg when draining clc data

State: Published
Severity: 7.5 High
Published: Jan 11, 2025
Updated: Oct 15, 2026
Reserved: Jan 9, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

net/smc: check return value of sock_recvmsg when draining clc data

When receiving clc msg, the field length in smc_clc_msg_hdr indicates the length of msg should be received from network and the value should not be fully trusted as it is from the network. Once the value of length exceeds the value of buflen in function smc_clc_wait_msg it may run into deadloop when trying to drain the remaining data exceeding buflen.

This patch checks the return value of sock_recvmsg when draining data in case of deadloop in draining.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 82c7ad9ca09975aae737abffd66d1ad98874c13dAffected fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 6b80924af6216277892d5f091f5bfc7d1265fa28Affected fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before d7d1f986ebb284b1db8dafca7d1bdb6dd2445cf6Affected fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 7a6927814b4256d603e202ae7c5e38db3b338896Affected fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before df3dfe1a93c6298d8c09a18e4fba19ef5b17763bAffected fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before c5b8ee5022a19464783058dc6042e8eefa34e8cdAffected
LinuxLinux	5.8Affected before 5.8Not affected 5.10.233 through 5.10.Not affected 5.15.176 through 5.15.Not affected 6.1.122 through 6.1.Not affected 6.6.68 through 6.6.Not affected 6.12.7 through 6.12.*Not affected 6.13 and laterNot affected

Product

Versions

LinuxLinux

fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 82c7ad9ca09975aae737abffd66d1ad98874c13dAffected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 6b80924af6216277892d5f091f5bfc7d1265fa28Affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before d7d1f986ebb284b1db8dafca7d1bdb6dd2445cf6Affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before 7a6927814b4256d603e202ae7c5e38db3b338896Affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before df3dfe1a93c6298d8c09a18e4fba19ef5b17763bAffected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 to before c5b8ee5022a19464783058dc6042e8eefa34e8cdAffected

LinuxLinux

5.8Affected
before 5.8Not affected
5.10.233 through 5.10.*Not affected
5.15.176 through 5.15.*Not affected
6.1.122 through 6.1.*Not affected
6.6.68 through 6.6.*Not affected
6.12.7 through 6.12.*Not affected
6.13 and laterNot affected

References

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