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NVD / CVE Program· CNA Linux

CVE-2026-72441: ieee802154: fix kernel-infoleak in dgram_recvmsg()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.23% (FIRST EPSS).
  • Fixed version: Linux Linux 09cfe665f2c5d7a8a5ed4d6b487434a011325368, 4db86f8ab11b5a41bfc36680be837e6ac1375ec6, 71b5add66c51d6764325de5f2e300bbf4f39e7a6.

Low priority for now. Upgrade to Linux Linux 09cfe665f2c5d7a8a5ed4d6b487434a011325368, 4db86f8ab11b5a41bfc36680be837e6ac1375ec6, 71b5add66c51d6764325de5f2e300bbf4f39e7a6 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: ieee802154: fix kernel-infoleak in dgram_recvmsg() KMSAN reported a kernel-infoleak in move_addr_to_user(): BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:131 [inline] BUG: KMSAN: kernel-infoleak in _inline_copy_to_user include/linux/uaccess.h:205 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xcc/0x120 lib/usercopy.c:26 instrument_copy_to_user include/linux/instrumented.h:131 [inline] _inline_copy_to_user include/linux/uaccess.h:205 [inline] _copy_to_user+0xcc/0x120 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:236 [inline] move_addr_to_user+0x2e7/0x440 net/socket.c:302 ____sys_recvmsg+0x232/0x610 net/socket.c:2925 ... Uninit was stored to memory at: ieee802154_addr_to_sa include/net/ieee802154_netdev.h:369 [inline] dgram_recvmsg+0xa09/0xbe0 net/ieee802154/socket.c:739 The issue occurs because the `pan_id` field of `struct ieee802154_addr` is left uninitialized when the address mode is `IEEE802154_ADDR_NONE`. The execution flow is as follows: 1. `__ieee802154_rx_handle_packet()` declares a local `struct ieee802154_hdr hdr` on the stack. 2. `ieee802154_hdr_pull()` calls `ieee802154_hdr_get_addr()` to parse the source and destination addresses into this structure. 3. If the address mode is `IEEE802154_ADDR_NONE`, `ieee802154_hdr_get_addr()` previously only set the `mode` field, leaving the `pan_id` field containing uninitialized stack memory. 4. This uninitialized `pan_id` is later copied into a `struct sockaddr_ieee802154` in `dgram_recvmsg()` via `ieee802154_addr_to_sa()`. 5. Finally, `move_addr_to_user()` copies the socket address structure to user space, leaking the uninitialized bytes. Fix this by using `memset` to zero out the address structure in `ieee802154_hdr_get_addr()` when the mode is `IEEE802154_ADDR_NONE`.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Nov 6, 2026
EPSS
0.2% · 14th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
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.

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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.

—

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

    • 3.15affected
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before a2ee1a038a16e286d084bc293a7522d010a59ec3affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before 09cfe665f2c5d7a8a5ed4d6b487434a011325368affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before c88e687e44cb9c7690f5039a5a5941dba1f6a204affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before 71b5add66c51d6764325de5f2e300bbf4f39e7a6affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before fc8766467b53335220b4b594ba15bc8f8cee0c76affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before de3bd9809af7555611334cb6a071806744430ef7affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before f14802465f5956baafe5f4b4541eb626b06b41f1affected · git
    • 94b4f6c21cf54029377a0645675a9d81b6cf890d and later · before 4db86f8ab11b5a41bfc36680be837e6ac1375ec6affected · git
    • before 3.15not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-72439Aug 15, 2026 · md/raid10: fix writes_pending leak on write request failures
    0Monitor
  • ← EarlierCVE-2026-72440Aug 15, 2026 · md/raid1: fix writes_pending and barrier reference leaks on write failures
    28Monitor
  • Later →CVE-2026-72444Aug 15, 2026 · flow_dissector: check device type before reading ETH_ADDRS
    31Monitor

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 Linux09cfe665f2c5d7a8a5ed4d6b487434a011325368Vendor (CNA)
Linux Linux4db86f8ab11b5a41bfc36680be837e6ac1375ec6Vendor (CNA)
Linux Linux71b5add66c51d6764325de5f2e300bbf4f39e7a6Vendor (CNA)
Linux Linuxa2ee1a038a16e286d084bc293a7522d010a59ec3Vendor (CNA)
Linux Linuxc88e687e44cb9c7690f5039a5a5941dba1f6a204Vendor (CNA)
Linux Linuxde3bd9809af7555611334cb6a071806744430ef7Vendor (CNA)
Linux Linuxf14802465f5956baafe5f4b4541eb626b06b41f1Vendor (CNA)
Linux Linuxfc8766467b53335220b4b594ba15bc8f8cee0c76Vendor (CNA)
debian:linux6.1.180-1 · 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.

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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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References

Show all references (7 more)

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

All records