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CVE-2024-57791— net/smc: check return value of sock_recvmsg when draining clc data

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于net/smc模块在接收clc消息时，未正确检查sock_recvmsg的返回值，可能导致死循环。

CVSS 7.5 · High EPSS 0.77% · P55

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< 82c7ad9ca09975aae737abffd66d1ad98874c13d affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< 6b80924af6216277892d5f091f5bfc7d1265fa28 affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< d7d1f986ebb284b1db8dafca7d1bdb6dd2445cf6 affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< 7a6927814b4256d603e202ae7c5e38db3b338896 affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< df3dfe1a93c6298d8c09a18e4fba19ef5b17763b affected
fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1< c5b8ee5022a19464783058dc6042e8eefa34e8cd affected
5.8 affected
< 5.8 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-57791

Vulnerability Information
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Vulnerability Title
net/smc: check return value of sock_recvmsg when draining clc data
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于net/smc模块在接收clc消息时，未正确检查sock_recvmsg的返回值，可能导致死循环。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux fb4f79264c0fc6fd5a68ffe3e31bfff97311e1f1 ~ 82c7ad9ca09975aae737abffd66d1ad98874c13d -
Linux Linux 5.8 -

II. Public POCs for CVE-2024-57791

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III. Intelligence Information for CVE-2024-57791

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Patches & Fixes for CVE-2024-57791 (6)

Same Patch Batch · Linux · 2025-01-11 · 67 CVEs total

CVE-2024-47408 9.8 CRITICAL net/smc: check smcd_v2_ext_offset when receiving proposal msg
CVE-2024-49568 9.8 CRITICAL net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg
CVE-2024-57843 9.8 CRITICAL virtio-net: fix overflow inside virtnet_rq_alloc
CVE-2024-57793 9.3 CRITICAL virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
CVE-2024-49571 9.1 CRITICAL net/smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg
CVE-2024-55639 8.4 HIGH net: renesas: rswitch: avoid use-after-put for a device tree node
CVE-2024-41149 7.8 HIGH block: avoid to reuse `hctx` not removed from cpuhp callback list
CVE-2024-57849 7.8 HIGH s390/cpum_sf: Handle CPU hotplug remove during sampling
CVE-2024-57850 7.8 HIGH jffs2: Prevent rtime decompress memory corruption
CVE-2024-52319 7.8 HIGH mm: use aligned address in clear_gigantic_page()
CVE-2024-51729 7.8 HIGH mm: use aligned address in copy_user_gigantic_page()
CVE-2024-57875 7.8 HIGH block: RCU protect disk->conv_zones_bitmap
CVE-2024-47794 7.8 HIGH bpf: Prevent tailcall infinite loop caused by freplace
CVE-2024-49569 7.5 HIGH nvme-rdma: unquiesce admin_q before destroy it
CVE-2024-56788 7.5 HIGH net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
CVE-2024-57804 7.3 HIGH scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs
CVE-2024-57792 7.3 HIGH power: supply: gpio-charger: Fix set charge current limits
CVE-2024-56368 7.1 HIGH ring-buffer: Fix overflow in __rb_map_vma
CVE-2024-49573 7.0 HIGH sched/fair: Fix NEXT_BUDDY
CVE-2024-56372 net: tun: fix tun_napi_alloc_frags()

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-57791

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