CVE-2026-43084
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_queue: make hash table per queue
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: make hash table per queue Sharing a global hash table among all queues is tempting, but it can cause crash: BUG: KASAN: slab-use-after-free in nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] [..] nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] nfnetlink_rcv_msg+0x46a/0x930 kmem_cache_alloc_node_noprof+0x11e/0x450 struct nf_queue_entry is freed via kfree, but parallel cpu can still encounter such an nf_queue_entry when walking the list. Alternative fix is to free the nf_queue_entry via kfree_rcu() instead, but as we have to alloc/free for each skb this will cause more mem pressure.
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) |
|---|---|---|---|---|---|
| 371de2bef6582a3f58049b3d18e190924af9c9a0 | affected | git | 22730cb96093b5be0609063bbb1923dbecd61252 | Unavailable | None listed |
| 870e3e63da8e88daffe9d692a025c711658018a8 | affected | git | 41e3652a178cb0eecd48e0e6e27fbb73a004046a | Unavailable | None listed |
| 70e2e3ce4f6841e12ec1c104fc76c0e707398ec4 | affected | git | 9e5ebef91120d2764aefe557c3a484b6288f341f | Unavailable | None listed |
| e19079adcd26a25d7d3e586b1837493361fdf8b6 | affected | git | 936206e3f6ff411581e615e930263d6f8b78df9d | Unavailable | None listed |
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) |
|---|---|---|---|---|---|
| 6.12.75 | affected | semver | 6.12.83 | Unavailable | None listed |
| 6.18.14 | affected | semver | 6.18.24 | Unavailable | None listed |
| 6.19.4 | affected | semver | 6.19.14 | Unavailable | None listed |