CVE-2026-43085
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)
netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator When batching multiple NFLOG messages (inst->qlen > 1), __nfulnl_send() appends an NLMSG_DONE terminator with sizeof(struct nfgenmsg) payload via nlmsg_put(), but never initializes the nfgenmsg bytes. The nlmsg_put() helper only zeroes alignment padding after the payload, not the payload itself, so four bytes of stale kernel heap data are leaked to userspace in the NLMSG_DONE message body. Use nfnl_msg_put() to build the NLMSG_DONE terminator, which initializes the nfgenmsg payload via nfnl_fill_hdr(), consistent with how __build_packet_message() already constructs NFULNL_MSG_PACKET headers.
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) |
|---|---|---|---|---|---|
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 296f18e1c3a87c915a92ed27832d5040a22d1072 | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 9e2182865de781c41ab16b7985e9d26dcefea867 | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 57cc509d82b46150a11dcecc8b25eaa177eda34d | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 368c22aea490f6f50df831b4f9e3623787686c5b | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | d1399632ba255d2e02c757af5d9f5d9279ce168c | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | d552bcfca323d175664d7444989b04f55666978a | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 15d209bccf9273b4a8b4e579ba0e92d065b6ec8c | Unavailable | None listed |
| 29c5d4afba51c71cfeadd3f74f3c42e064483fb0 | affected | git | 1f3083aec8836213da441270cdb1ab612dd82cf4 | 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) |
|---|---|---|---|---|---|
| 2.6.23 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.23 | Unavailable | None listed |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.136 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.83 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.24 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.14 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |