bridge: br_nd_send: linearize skb before parsing ND options
br_nd_send() parses neighbour discovery options from ns->opt[] and
assumes that these options are in the linear part of request.
Its callers only guarantee that the ICMPv6 header and target address
are available, so the option area can still be non-linear. Parsing
ns->opt[] in that case can access data past the linear buffer.
Linearize request before option parsing and derive ns from the linear
network header.
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4561-1 | linux-6.1 security update |
Debian DSA |
DSA-6238-1 | linux security update |
Debian DSA |
DSA-6243-1 | linux security update |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 06 May 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* |
Mon, 27 Apr 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Mon, 27 Apr 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-788 | |
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Sat, 25 Apr 2026 09:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: bridge: br_nd_send: linearize skb before parsing ND options br_nd_send() parses neighbour discovery options from ns->opt[] and assumes that these options are in the linear part of request. Its callers only guarantee that the ICMPv6 header and target address are available, so the option area can still be non-linear. Parsing ns->opt[] in that case can access data past the linear buffer. Linearize request before option parsing and derive ns from the linear network header. | |
| Title | bridge: br_nd_send: linearize skb before parsing ND options | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T22:13:36.085Z
Reserved: 2026-03-09T15:48:24.130Z
Link: CVE-2026-31682
No data.
Status : Analyzed
Published: 2026-04-25T09:16:01.913
Modified: 2026-05-06T21:17:15.287
Link: CVE-2026-31682
OpenCVE Enrichment
Updated: 2026-05-07T00:15:05Z
Debian DLA
Debian DSA