mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 33 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10 and later | 5.15.174, 6.1.119, 6.6.63, 6.11.10, 6.12 | Patch available | CNA |
- Linux VendorLinux Affected 5.10 and later Fixed in 5.15.174, 6.1.119, 6.6.63, 6.11.10, 6.12 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10 to before 6.1.119; 6.2 to before 6.6.63; 6.7 to before 6.11.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | 6.12 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* | 6.12 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* | 6.12 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* | 6.12 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* | 6.12 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* | 6.12 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc7:*:*:*:*:*:* | 6.12 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10 to before 6.1.119; 6.2 to before 6.6.63; 6.7 to before 6.11.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* Versions 6.12 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* Versions 6.12 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* Versions 6.12 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* Versions 6.12 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* Versions 6.12 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* Versions 6.12 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc7:*:*:*:*:*:* Versions 6.12 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.174, 6.1.119, 6.6.63, 6.11.10, 6.12
Red Hat 20 advisories
- RHSA-2025:0109 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-4_18_0-553, kpatch-patch-4_18_0-553_16_1, and kpatch-patch-4_18_0-553_30_1 security update
- Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-553-1-3.el8_10, kpatch-patch-4_18_0-553_16_1-1-2.el8_10, kpatch-patch-4_18_0-553_30_1-1-1.el8_10
- RHSA-2025:0063 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.99.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.99.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.99.1.el9_2, kernel-64k-devel-5.14.0-284.99.1.el9_2 +9
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.99.1.el9_2, kernel-5.14.0-284.99.1.el9_2, kernel-64k-5.14.0-284.99.1.el9_2 +29
- RHSA-2025:0067 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-4_18_0-372_118_1, kpatch-patch-4_18_0-372_131_1, and kpatch-patch-4_18_0-372_91_1 security update
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) kpatch-patch-4_18_0-372_118_1-1-3.el8_6, kpatch-patch-4_18_0-372_131_1-1-2.el8_6, kpatch-patch-4_18_0-372_91_1-1-7.el8_6
Show 17 more Red Hat advisories
- RHSA-2025:0057 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.50.1.el9_4, libperf-5.14.0-427.50.1.el9_4
- Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.50.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.50.1.el9_4, kernel-64k-devel-5.14.0-427.50.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.50.1.el9_4, kernel-5.14.0-427.50.1.el9_4, kernel-64k-5.14.0-427.50.1.el9_4 +29
- Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.50.1.el9_4, kernel-rt-core-5.14.0-427.50.1.el9_4, kernel-rt-debug-5.14.0-427.50.1.el9_4 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.50.1.el9_4, kernel-rt-core-5.14.0-427.50.1.el9_4, kernel-rt-debug-5.14.0-427.50.1.el9_4 +11
- RHSA-2025:0059 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-503.21.1.el9_5, libperf-5.14.0-503.21.1.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-503.21.1.el9_5, kernel-64k-debug-devel-matched-5.14.0-503.21.1.el9_5, kernel-64k-devel-5.14.0-503.21.1.el9_5 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.4.0-503.21.1.el9_5, kernel-5.14.0-503.21.1.el9_5, kernel-64k-5.14.0-503.21.1.el9_5 +30
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-503.21.1.el9_5, kernel-rt-core-5.14.0-503.21.1.el9_5, kernel-rt-debug-5.14.0-503.21.1.el9_5 +9
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-503.21.1.el9_5, kernel-rt-core-5.14.0-503.21.1.el9_5, kernel-rt-debug-5.14.0-503.21.1.el9_5 +11
- RHSA-2025:0062 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.86.1.el8_8
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.86.1.el8_8, kernel-4.18.0-477.86.1.el8_8, kernel-abi-stablelists-4.18.0-477.86.1.el8_8 +19
- RHSA-2025:0065 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.34.1.el8_10, kernel-4.18.0-553.34.1.el8_10, kernel-abi-stablelists-4.18.0-553.34.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.34.1.el8_10
- RHSA-2025:0061 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.148.1.el8_4, kernel-4.18.0-305.148.1.el8_4, kernel-abi-stablelists-4.18.0-305.148.1.el8_4 +14
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.148.1.el8_4, kernel-4.18.0-305.148.1.el8_4, kernel-abi-stablelists-4.18.0-305.148.1.el8_4 +14
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.148.1.el8_4, kernel-4.18.0-305.148.1.el8_4, kernel-abi-stablelists-4.18.0-305.148.1.el8_4 +14
- RHSA-2025:0055 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.134.1.el8_6, kernel-4.18.0-372.134.1.el8_6, kernel-abi-stablelists-4.18.0-372.134.1.el8_6 +14
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.134.1.el8_6, kernel-4.18.0-372.134.1.el8_6, kernel-abi-stablelists-4.18.0-372.134.1.el8_6 +19
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.134.1.el8_6, kernel-4.18.0-372.134.1.el8_6, kernel-abi-stablelists-4.18.0-372.134.1.el8_6 +14
- RHSA-2025:0054 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-5_14_0-284_52_1, kpatch-patch-5_14_0-284_79_1, and kpatch-patch-5_14_0-284_92_1 security update
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) kpatch-patch-5_14_0-284_52_1-1-7.el9_2, kpatch-patch-5_14_0-284_79_1-1-3.el9_2, kpatch-patch-5_14_0-284_92_1-1-1.el9_2
- RHSA-2025:0052 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-5_14_0-427_13_1, kpatch-patch-5_14_0-427_31_1, and kpatch-patch-5_14_0-427_44_1 security update
- Red Hat Enterprise Linux BaseOS EUS (v.9.4) kpatch-patch-5_14_0-427_13_1-1-5.el9_4, kpatch-patch-5_14_0-427_31_1-1-3.el9_4, kpatch-patch-5_14_0-427_44_1-1-1.el9_4
- RHSA-2025:0051 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-4_18_0-477_43_1, kpatch-patch-4_18_0-477_67_1, and kpatch-patch-4_18_0-477_81_1 security update
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) kpatch-patch-4_18_0-477_43_1-1-6.el8_8, kpatch-patch-4_18_0-477_67_1-1-3.el8_8, kpatch-patch-4_18_0-477_81_1-1-1.el8_8
- RHSA-2025:0053 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-4_18_0-305_120_1, kpatch-patch-4_18_0-305_138_1, and kpatch-patch-4_18_0-305_145_1 security update
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) kpatch-patch-4_18_0-305_120_1-1-7.el8_4, kpatch-patch-4_18_0-305_138_1-1-3.el8_4, kpatch-patch-4_18_0-305_145_1-1-1.el8_4
- RHSA-2025:0058 Released 2025-01-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.122.1.el9_0, kernel-debug-devel-matched-5.14.0-70.122.1.el9_0, kernel-devel-5.14.0-70.122.1.el9_0 +5
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.122.1.el9_0, kernel-5.14.0-70.122.1.el9_0, kernel-abi-stablelists-5.14.0-70.122.1.el9_0 +14
- RHSA-2025:0049 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-5_14_0-503_15_1 security update
- Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-503_15_1-1-1.el9_5
- RHSA-2025:0066 Released 2025-01-08 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.34.1.rt7.375.el8_10, kernel-rt-core-4.18.0-553.34.1.rt7.375.el8_10, kernel-rt-debug-4.18.0-553.34.1.rt7.375.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.34.1.rt7.375.el8_10, kernel-rt-core-4.18.0-553.34.1.rt7.375.el8_10, kernel-rt-debug-4.18.0-553.34.1.rt7.375.el8_10 +7
- RHSA-2025:0064 Released 2025-01-08 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.99.1.rt14.384.el9_2, kernel-rt-core-5.14.0-284.99.1.rt14.384.el9_2, kernel-rt-debug-5.14.0-284.99.1.rt14.384.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.99.1.rt14.384.el9_2, kernel-rt-core-5.14.0-284.99.1.rt14.384.el9_2, kernel-rt-debug-5.14.0-284.99.1.rt14.384.el9_2 +11
- RHSA-2025:0060 Released 2025-01-08 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt-4.18.0-305.148.1.rt7.225.el8_4, kernel-rt-core-4.18.0-305.148.1.rt7.225.el8_4, kernel-rt-debug-4.18.0-305.148.1.rt7.225.el8_4 +9
- Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt-4.18.0-305.148.1.rt7.225.el8_4, kernel-rt-core-4.18.0-305.148.1.rt7.225.el8_4, kernel-rt-debug-4.18.0-305.148.1.rt7.225.el8_4 +7
- RHSA-2025:0056 Released 2025-01-08 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.122.1.rt21.194.el9_0, kernel-rt-core-5.14.0-70.122.1.rt21.194.el9_0, kernel-rt-debug-5.14.0-70.122.1.rt21.194.el9_0 +9
- Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.122.1.rt21.194.el9_0, kernel-rt-core-5.14.0-70.122.1.rt21.194.el9_0, kernel-rt-debug-5.14.0-70.122.1.rt21.194.el9_0 +7
- RHSA-2025:0050 Released 2025-01-08 · Red Hat rating Importantkpatch-patch-5_14_0-70_112_1, kpatch-patch-5_14_0-70_121_1, and kpatch-patch-5_14_0-70_85_1 security update
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) kpatch-patch-5_14_0-70_112_1-1-2.el9_0, kpatch-patch-5_14_0-70_121_1-1-1.el9_0, kpatch-patch-5_14_0-70_85_1-1-6.el9_0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:0059 |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2025:0062 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2025:0063 |
| Red Hat CodeReady Linux Builder EUS (v.9.4) | Fixed | RHSA-2025:0057 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:0059 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:0058 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2025:0063 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:0057 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:0065, RHSA-2025:0109 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:0049, RHSA-2025:0059 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2025:0061 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2025:0055 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.4) | Fixed | RHSA-2025:0053, RHSA-2025:0061 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2025:0055, RHSA-2025:0067 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.0) | Fixed | RHSA-2025:0050, RHSA-2025:0058 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2025:0051, RHSA-2025:0062 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2025:0054, RHSA-2025:0063 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.4) | Fixed | RHSA-2025:0052, RHSA-2025:0057 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.4) | Fixed | RHSA-2025:0061 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2025:0055 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2025:0065 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2025:0066 |
| Red Hat Enterprise Linux NFV E4S (v.9.0) | Fixed | RHSA-2025:0056 |
| Red Hat Enterprise Linux NFV TUS (v.8.4) | Fixed | RHSA-2025:0060 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2025:0066 |
| Red Hat Enterprise Linux RT TUS (v.8.4) | Fixed | RHSA-2025:0060 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:0059 |
| Red Hat Enterprise Linux Real Time E4S (v.9.0) | Fixed | RHSA-2025:0056 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2025:0064 |
| Red Hat Enterprise Linux Real Time EUS (v.9.4) | Fixed | RHSA-2025:0057 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:0059 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2025:0064 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) | Fixed | RHSA-2025:0057 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-53122
- 2026-10-03 Alias added: GHSA-x34g-xjxv-fc48
- 2026-10-16 CISA SSVC decision points changed
References
Patch 4
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-53122 · CVE Program
- CVE-2024-53122 · NVD
- FIRST EPSS
- GHSA-x34g-xjxv-fc48 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-53122 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences