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CVE-2022-49862· NVD / CVE Program· CNA Linux

tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.20% (FIRST EPSS).
  • 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.
  • Fixed version: Linux Linux 082707d3df191bf5bb8801d43e4ce3dea39ca173, 1c075b192fe41030457cd4a5f7dea730412bca40, 301caa06091af4d5cf056ac8249cbda4e6029c6a.

Low priority for now. Upgrade to Linux Linux 082707d3df191bf5bb8801d43e4ce3dea39ca173, 1c075b192fe41030457cd4a5f7dea730412bca40, 301caa06091af4d5cf056ac8249cbda4e6029c6a or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header This is a follow-up for commit 974cb0e3e7c9 ("tipc: fix uninit-value in tipc_nl_compat_name_table_dump") where it should have type casted sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative value. syzbot reported a call trace because of it: BUG: KMSAN: uninit-value in ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline]

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 9th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.4.172 and later · before 4.5
  • linux linux kernel4.9.152 and later · before 4.9.334
  • linux linux kernel4.14.95 and later · before 4.14.300
  • linux linux kernel4.19.17 and later · before 4.19.267
  • linux linux kernel4.20.4 and later · before 5.4.225
  • linux linux kernel5.5 and later · before 5.10.155
  • linux linux kernel5.11 and later · before 5.15.79
  • linux linux kernel5.16 and later · before 6.0.9
  • linux linux kernel6.1

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

    • c25352f9ad5dffb4de95069e67891e2aa2e99e50, 5486e8d46560ca2b4d86cbd7d3a66d9913b2ac65, 5.0affected
    • 4c559fb7e111077b56f62ccf833a52d8169cde19 and later · before 082707d3df191bf5bb8801d43e4ce3dea39ca173affected · git
    • 2aae1723dea1235ffef183daf0694805297424f6 and later · before a0ead1d648df9c456baec832b494513ef405949aaffected · git
    • 2d5fc1d492d194aa2986c5a9d8a48a60e9143a72 and later · before 55a253a6753a603e80b95932ca971ba514aa6ce7affected · git
    • 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 and later · before 36769b9477491a7af6635863bd950309c1e1b96caffected · git
    • 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 and later · before f31dd158580940938f77514b87337a777520185aaffected · git
    • 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 and later · before 301caa06091af4d5cf056ac8249cbda4e6029c6aaffected · git
    • 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 and later · before 6cee2c60bd168279852ac7dbe54c2b70d1028644affected · git
    • 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 and later · before 1c075b192fe41030457cd4a5f7dea730412bca40affected · git
    • 4.9.152 and later · before 4.9.334affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.10-16.0.10-1

Same product

linux: all records

Other 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 KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • 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 haKEV
    83Now
  • 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 creKEV
    77This 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 addKEV
    77This 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 loKEV
    77This 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 / packageFixed versionSource
Linux Linux082707d3df191bf5bb8801d43e4ce3dea39ca173Vendor (CNA)
Linux Linux1c075b192fe41030457cd4a5f7dea730412bca40Vendor (CNA)
Linux Linux301caa06091af4d5cf056ac8249cbda4e6029c6aVendor (CNA)
Linux Linux36769b9477491a7af6635863bd950309c1e1b96cVendor (CNA)
Linux Linux4.14.300Vendor (CNA)
Linux Linux4.19.267Vendor (CNA)
Linux Linux4.21Vendor (CNA)
Linux Linux4.5Vendor (CNA)
Linux Linux4.9.334Vendor (CNA)
Linux Linux55a253a6753a603e80b95932ca971ba514aa6ce7Vendor (CNA)
Linux Linux6cee2c60bd168279852ac7dbe54c2b70d1028644Vendor (CNA)
Linux Linuxa0ead1d648df9c456baec832b494513ef405949aVendor (CNA)
Linux Linuxf31dd158580940938f77514b87337a777520185aVendor (CNA)
debian:linux6.0.10-1 · Debian:12Package 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.

EPSS, last 120 days

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 researchers

Finders, 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.

  • CVE-2024-50302163 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2026-52989419 days apartnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
    39Monitor
  • CVE-2024-47685192 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2026-53225420 days apartsctp: fix uninit-value in __sctp_rcv_asconf_lookup()
    36Monitor
  • CVE-2026-53170420 days apartaccel/ethosu: reject DMA commands with uninitialized length
    35Monitor
  • CVE-2026-43139370 days apartxfrm6: fix uninitialized saddr in xfrm6_get_saddr()
    34Monitor

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)

CWE-908 · Use of Uninitialized Resource

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records