CVE-2026-43040
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding fields.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | 1da9023f6b071a38e5430ffbce4b70b2b1ac4f9c | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | 2fe4d0ba690a69ad6ae9f7ab9bdc96e02610b648 | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | 11d7fe97421cfc81549940c20ed5ac9472d6db05 | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | 7f56d87e527bb5a13c3e8b0d5840cb6332822f6d | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | 4f810c686fde509d1cdaa706322d9d2531f8f1a4 | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | b485eef3d97b7aae55ce669b6de555ec81f3d21c | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | ef3645606e4a635d5062a492f22b7f490852ee67 | Unavailable | None listed |
| 31910575a9de61e78065e93846e8e7a4894a18bf | affected | git | ae05340ccaa9d347fe85415609e075545bec589f | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.24 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.24 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.134 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.81 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.22 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.12 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |