Bluetooth: 6lowpan: reset link-local header on ipv6 recv path

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-40282
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-06 22:15:56 UTC
Updated2026-07-30 06:24:26 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset link-local header on ipv6 recv path Bluetooth 6lowpan.c netdev has header_ops, so it must set link-local header for RX skb, otherwise things crash, eg. with AF_PACKET SOCK_RAW Add missing skb_reset_mac_header() for uncompressed ipv6 RX path. For the compressed one, it is done in lowpan_header_decompress(). Log: (BlueZ 6lowpan-tester Client Recv Raw - Success) ------ kernel BUG at net/core/skbuff.c:212! Call Trace: <IRQ> ... packet_rcv (net/packet/af_packet.c:2152) ... <TASK> __local_bh_enable_ip (kernel/softirq.c:407) netif_rx (net/core/dev.c:5648) chan_recv_cb (net/bluetooth/6lowpan.c:294 net/bluetooth/6lowpan.c:359) ------

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.002470000 probability, percentile 0.160820000 (date 2026-07-31)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 ea46a1d217bc82e01cf3d0424e50ebfe251e34bf git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 973e0271754c77db3e1b6b69adf2de85a79a4c8b git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 d566e9a2bfc848941b091ffd5f4e12c4e889d818 git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 4ebb90c3c309e6375dc3e841af92e2a039843e62 git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 c24ac6cfe4f9a47180a65592c47e7a310d2f9d93 git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 11cd7e068381666f842ad41d1cc58eecd0c75237 git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 70d84e7c3a44b81020a3c3d650a64c63593405bd git Not specified
CNA Linux Linux affected 18722c247023035b9e2e2a08a887adec2a9a6e49 3b78f50918276ab28fb22eac9aa49401ac436a3b git Not specified
CNA Linux Linux affected 3.14 Not specified
CNA Linux Linux unaffected 3.14 semver Not specified
CNA Linux Linux unaffected 5.4.302 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.247 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.197 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.159 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.117 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.59 6.12.* semver Not specified
CNA Linux Linux unaffected 6.17.9 6.17.* semver Not specified
CNA Linux Linux unaffected 6.18 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/70d84e7c3a44b81020a3c3d650a64c63593405bd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/11cd7e068381666f842ad41d1cc58eecd0c75237 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3b78f50918276ab28fb22eac9aa49401ac436a3b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4ebb90c3c309e6375dc3e841af92e2a039843e62 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d566e9a2bfc848941b091ffd5f4e12c4e889d818 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/973e0271754c77db3e1b6b69adf2de85a79a4c8b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c24ac6cfe4f9a47180a65592c47e7a310d2f9d93 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ea46a1d217bc82e01cf3d0424e50ebfe251e34bf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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