CVE-2026-23399 nf_tables: nft_dynset: fix possible stateful expression memleak in error path
Description
In the Linux kernel, the following vulnerability has been resolved: nf_tables: nft_dynset: fix possible stateful expression memleak in error path If cloning the second stateful expression in the element via GFP_ATOMIC fails, then the first stateful expression remains in place without being released. unreferenced object (percpu) 0x607b97e9cab8 (size 16): comm "softirq", pid 0, jiffies 4294931867 hex dump (first 16 bytes on cpu 3): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 backtrace (crc 0): pcpu_alloc_noprof+0x453/0xd80 nft_counter_clone+0x9c/0x190 [nf_tables] nft_expr_clone+0x8f/0x1b0 [nf_tables] nft_dynset_new+0x2cb/0x5f0 [nf_tables] nft_rhash_update+0x236/0x11c0 [nf_tables] nft_dynset_eval+0x11f/0x670 [nf_tables] nft_do_chain+0x253/0x1700 [nf_tables] nft_do_chain_ipv4+0x18d/0x270 [nf_tables] nf_hook_slow+0xaa/0x1e0 ip_local_deliver+0x209/0x330
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.0 | premières → < 7.0 | 7.0 |
| Linux 6.19 | premières → < 6.19.10 | 6.19.10 |
| Linux 6.18 | premières → < 6.18.20 | 6.18.20 |
| Linux 6.12 | premières → < 6.12.78 | 6.12.78 |
| Linux 6.6 | premières → < 6.6.136 | 6.6.136 |
| Linux 6.1 | premières → < 6.1.175 | 6.1.175 |
| Linux 5.15 | premières → < 5.15.209 | 5.15.209 |
| Linux | 5.11 | Pas de correctif indiqué |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
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| Produit | Versions touchées | Corrigé en |
|---|---|---|
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |