CVE-2026-23399
Full vulnerability record from the local CVENow database.
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
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-03-28 08:15:56.720000
Last modified
2026-11-05 22:18:24.653000
View original CVE JSON
{
"id": "CVE-2026-23399",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-03-28T08:15:56.720",
"lastModified": "2026-11-05T22:18:24.653",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnf_tables: nft_dynset: fix possible stateful expression memleak in error path\n\nIf cloning the second stateful expression in the element via GFP_ATOMIC\nfails, then the first stateful expression remains in place without being\nreleased.\n\n unreferenced object (percpu) 0x607b97e9cab8 (size 16):\n comm \"softirq\", pid 0, jiffies 4294931867\n hex dump (first 16 bytes on cpu 3):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n backtrace (crc 0):\n pcpu_alloc_noprof+0x453/0xd80\n nft_counter_clone+0x9c/0x190 [nf_tables]\n nft_expr_clone+0x8f/0x1b0 [nf_tables]\n nft_dynset_new+0x2cb/0x5f0 [nf_tables]\n nft_rhash_update+0x236/0x11c0 [nf_tables]\n nft_dynset_eval+0x11f/0x670 [nf_tables]\n nft_do_chain+0x253/0x1700 [nf_tables]\n nft_do_chain_ipv4+0x18d/0x270 [nf_tables]\n nf_hook_slow+0xaa/0x1e0\n ip_local_deliver+0x209/0x330"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnf_tables: nft_dynset: corregir posible fuga de memoria de expresión con estado en la ruta de error\n\nSi la clonación de la segunda expresión con estado en el elemento a través de GFP_ATOMIC falla, entonces la primera expresión con estado permanece en su lugar sin ser liberada.\n\n   objeto sin referencia (por CPU) 0x607b97e9cab8 (tamaño 16):\n     comm 'softirq', pid 0, jiffies 4294931867\n     volcado hexadecimal (primeros 16 bytes en la CPU 3):\n       00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n     rastreo de pila (crc 0):\n       pcpu_alloc_noprof+0x453/0xd80\n       nft_counter_clone+0x9c/0x190 [nf_tables]\n       nft_expr_clone+0x8f/0x1b0 [nf_tables]\n       nft_dynset_new+0x2cb/0x5f0 [nf_tables]\n       nft_rhash_update+0x236/0x11c0 [nf_tables]\n       nft_dynset_eval+0x11f/0x670 [nf_tables]\n       nft_do_chain+0x253/0x1700 [nf_tables]\n       nft_do_chain_ipv4+0x18d/0x270 [nf_tables]\n       nf_hook_slow+0xaa/0x1e0\n       ip_local_deliver+0x209/0x330"
}
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