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CVE-2024-53122— mptcp: cope racing subflow creation in mptcp_rcv_space_adjust

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mptcp组件中mptcp_rcv_space_adjust函数在子流创建过程中存在竞态条件，导致tcp_cleanup_rbuf在状态不适宜的子流上被无条件调用，可能触发除以零错误。

CVSS 7.5 · High EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux c76c6956566f974bac2470bd72fc22fb923e04a1< 0a9a182ea5c7bb0374e527130fd85024ace7279b affected
c76c6956566f974bac2470bd72fc22fb923e04a1< 24995851d58c4a205ad0ffa7b2f21e479a9c8527 affected
c76c6956566f974bac2470bd72fc22fb923e04a1< ff825ab2f455299c0c7287550915a8878e2a66e0 affected
c76c6956566f974bac2470bd72fc22fb923e04a1< aad6412c63baa39dd813e81f16a14d976b3de2e8 affected
c76c6956566f974bac2470bd72fc22fb923e04a1< ce7356ae35943cc6494cc692e62d51a734062b7d affected
5.10 affected
< 5.10 unaffected
5.15.174≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-53122

Vulnerability Information
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Vulnerability Title
mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: cope racing subflow creation in mptcp_rcv_space_adjust Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs. A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones. Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().
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mptcp组件中mptcp_rcv_space_adjust函数在子流创建过程中存在竞态条件，导致tcp_cleanup_rbuf在状态不适宜的子流上被无条件调用，可能触发除以零错误。
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 c76c6956566f974bac2470bd72fc22fb923e04a1 ~ 0a9a182ea5c7bb0374e527130fd85024ace7279b -
Linux Linux 5.10 -

II. Public POCs for CVE-2024-53122

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III. Intelligence Information for CVE-2024-53122

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Patches & Fixes for CVE-2024-53122 (5)

Same Patch Batch · Linux · 2024-12-02 · 22 CVEs total

CVE-2024-53103 7.8 HIGH hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer
CVE-2024-53121 7.8 HIGH net/mlx5: fs, lock FTE when checking if active
CVE-2024-53107 7.8 HIGH fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()
CVE-2024-53109 7.8 HIGH nommu: pass NULL argument to vma_iter_prealloc()
CVE-2024-53120 7.5 HIGH net/mlx5e: CT: Fix null-ptr-deref in add rule err flow
CVE-2024-53124 7.5 HIGH net: fix data-races around sk->sk_forward_alloc
CVE-2024-53106 7.3 HIGH ima: fix buffer overrun in ima_eventdigest_init_common
CVE-2024-53108 7.3 HIGH drm/amd/display: Adjust VSDB parser for replay feature
CVE-2024-53110 7.3 HIGH vp_vdpa: fix id_table array not null terminated error
CVE-2024-53111 7.1 HIGH mm/mremap: fix address wraparound in move_page_tables()
CVE-2024-53113 mm: fix NULL pointer dereference in alloc_pages_bulk_noprof
CVE-2024-53104 media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
CVE-2024-53105 mm: page_alloc: move mlocked flag clearance into free_pages_prepare()
CVE-2024-53112 ocfs2: uncache inode which has failed entering the group
CVE-2024-53114 x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client
CVE-2024-53115 drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle
CVE-2024-53116 drm/panthor: Fix handling of partial GPU mapping of BOs
CVE-2024-53117 virtio/vsock: Improve MSG_ZEROCOPY error handling
CVE-2024-53119 virtio/vsock: Fix accept_queue memory leak
CVE-2024-53118 vsock: Fix sk_error_queue memory leak

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53122

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