mptcp: pm: only decrement add_addr_accepted for MPJ req
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only decrement add_addr_accepted for MPJ req Adding the following warning ... WARN_ON_ONCE(msk->pm.add_addr_accepted == 0) ... before decrementing the add_addr_accepted counter helped to find a bug when running the "remove single subflow" subtest from the mptcp_join.sh selftest. Removing a 'subflow' endpoint will first trigger a RM_ADDR, then the subflow closure. Before this patch, and upon the reception of the RM_ADDR, the other peer will then try to decrement this add_addr_accepted. That's not correct because the attached subflows have not been created upon the reception of an ADD_ADDR. A way to solve that is to decrement the counter only if the attached subflow was an MP_JOIN to a remote id that was not 0, and initiated by the host receiving the RM_ADDR.
- Published
- Sep 11, 2024
- Updated
- Aug 5, 2026
- EPSS
- 0.5% · 42th percentile
- CWE
- —
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 8.2
- 2.7 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.10 and later · before 5.15.167
- linux linux kernel5.16 and later · before 6.1.107
- linux linux kernel6.2 and later · before 6.6.48
- linux linux kernel6.7 and later · before 6.10.7
- linux linux kernel6.11
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 5.10affected
- d0876b2284cf8b34dd214b2d0aa21071c345da59 and later · before 35b31f5549ede4070566b949781e83495906b43daffected · git
- d0876b2284cf8b34dd214b2d0aa21071c345da59 and later · before 85b866e4c4e63a1d7afb58f1e24273caad03d0b7affected · git
- d0876b2284cf8b34dd214b2d0aa21071c345da59 and later · before d20bf2c96d7ffd171299b32f562f70e5bf5dc608affected · git
- d0876b2284cf8b34dd214b2d0aa21071c345da59 and later · before 2060f1efab370b496c4903b840844ecaff324c3caffected · git
- d0876b2284cf8b34dd214b2d0aa21071c345da59 and later · before 1c1f721375989579e46741f59523e39ec9b2a9bdaffected · git
- before 5.10not affected · semver
- 5.15.167 and later · up to and including 5.15.*not affected · semver
- 6.1.107 and later · up to and including 6.1.*not affected · semver
- 6.6.48 and later · up to and including 6.6.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.112-1 | 6.1.112-1 |
| Debian:13 | linux | before 6.10.7-1 | 6.10.7-1 |
| openSUSE:Leap 15.6 | dtb-aarch64 | before 6.4.0-150600.23.42.1 | 6.4.0-150600.23.42.1 |
| openSUSE:Leap 15.6 | kernel-debug | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| openSUSE:Leap 15.6 | kernel-kvmsmall | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| openSUSE:Leap 15.6 | kernel-obs-qa | before 6.4.0-150600.23.42.1 | 6.4.0-150600.23.42.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_9 | before 1-150600.13.3.4 | 1-150600.13.3.4 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_9 | before 1-150600.13.3.4 | 1-150600.13.3.4 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_9 | before 1-150600.1.3.2 | 1-150600.1.3.2 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_9 | before 1-150600.1.3.2 | 1-150600.1.3.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-64kb | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-64kb | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | before 6.4.0-150600.23.42.2.150600.12.18.4 | 6.4.0-150600.23.42.2.150600.12.18.4 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | before 6.4.0-150600.23.42.2.150600.12.18.4 | 6.4.0-150600.23.42.2.150600.12.18.4 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | before 6.4.0-150600.23.42.1 | 6.4.0-150600.23.42.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | before 6.4.0-150600.23.42.1 | 6.4.0-150600.23.42.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-zfcpdump | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-zfcpdump | before 6.4.0-150600.23.42.2 | 6.4.0-150600.23.42.2 |
| SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | kernel-coco | before 6.4.0-15061.18.coco15sp6.1 | 6.4.0-15061.18.coco15sp6.1 |
| SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | kernel-coco_debug | before 6.4.0-15061.18.coco15sp6.1 | 6.4.0-15061.18.coco15sp6.1 |
| SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | kernel-source-coco | before 6.4.0-15061.18.coco15sp6.1 | 6.4.0-15061.18.coco15sp6.1 |
| SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | kernel-syms-coco | before 6.4.0-15061.18.coco15sp6.1 | 6.4.0-15061.18.coco15sp6.1 |
+20
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 1c1f721375989579e46741f59523e39ec9b2a9bd | Vendor (CNA) |
| Linux Linux | 2060f1efab370b496c4903b840844ecaff324c3c | Vendor (CNA) |
| Linux Linux | 35b31f5549ede4070566b949781e83495906b43d | Vendor (CNA) |
| Linux Linux | 85b866e4c4e63a1d7afb58f1e24273caad03d0b7 | Vendor (CNA) |
| Linux Linux | d20bf2c96d7ffd171299b32f562f70e5bf5dc608 | Vendor (CNA) |
| debian:linux | 6.1.112-1 · Debian:12 | Package registry (OSV) |
| opensuse:kernel-azure | 6.4.0-150600.8.31.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| opensuse:kernel-source-azure | 6.4.0-150600.8.31.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| opensuse:kernel-syms-azure | 6.4.0-150600.8.31.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| suse:kernel-64kb | 6.4.0-150600.23.42.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-azure | 6.4.0-150600.8.31.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | Package registry (OSV) |
| suse:kernel-coco | 6.4.0-15061.18.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | Package registry (OSV) |
| suse:kernel-coco_debug | 6.4.0-15061.18.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | Package registry (OSV) |
| suse:kernel-default | 6.4.0-150600.23.42.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-default-base | 6.4.0-150600.23.42.2.150600.12.18.4 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-docs | 6.4.0-150600.23.42.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6 | Package registry (OSV) |
| suse:kernel-source | 6.4.0-150600.23.42.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-source-azure | 6.4.0-150600.8.31.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | Package registry (OSV) |
| suse:kernel-source-coco | 6.4.0-15061.18.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | Package registry (OSV) |
| suse:kernel-syms-azure | 6.4.0-150600.8.31.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6 | Package registry (OSV) |
| suse:kernel-syms-coco | 6.4.0-15061.18.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6 | Package registry (OSV) |
| suse:kernel-zfcpdump | 6.4.0-150600.23.42.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/85b866e4c4e63a1d7afb58f1e24273caad03d0b7
- git.kernel.org/stable/c/1c1f721375989579e46741f59523e39ec9b2a9bd
- git.kernel.org/stable/c/2060f1efab370b496c4903b840844ecaff324c3c
- git.kernel.org/stable/c/35b31f5549ede4070566b949781e83495906b43d
- git.kernel.org/stable/c/d20bf2c96d7ffd171299b32f562f70e5bf5dc608
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.