CVE-2026-23399

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-23399
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

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0548a13b5a145b16e4da0628b5936baf35f51b43 Patch
https://git.kernel.org/stable/c/31641c682db73353e4647e40735c7f2a75ff58ef Patch
https://git.kernel.org/stable/c/4357dbb1d9c35ca0b4443d71c98a48e6666f7689
https://git.kernel.org/stable/c/c88a9fd26cee365bec932196f76175772a941cca Patch
https://git.kernel.org/stable/c/d1354873cbe3b344899c4311ac05897fd83e3f21 Patch
https://git.kernel.org/stable/c/e6661add2d9c6913e1dad97336595e23a2bed195
https://git.kernel.org/stable/c/eb7bf413e59945df03d4567b73ce464eebe2f4ea
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.11:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
History

01 Jun 2026, 17:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/4357dbb1d9c35ca0b4443d71c98a48e6666f7689 -
  • () https://git.kernel.org/stable/c/eb7bf413e59945df03d4567b73ce464eebe2f4ea -

27 Apr 2026, 14:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/e6661add2d9c6913e1dad97336595e23a2bed195 -

24 Apr 2026, 15:17

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0548a13b5a145b16e4da0628b5936baf35f51b43 - () https://git.kernel.org/stable/c/0548a13b5a145b16e4da0628b5936baf35f51b43 - Patch
References () https://git.kernel.org/stable/c/31641c682db73353e4647e40735c7f2a75ff58ef - () https://git.kernel.org/stable/c/31641c682db73353e4647e40735c7f2a75ff58ef - Patch
References () https://git.kernel.org/stable/c/c88a9fd26cee365bec932196f76175772a941cca - () https://git.kernel.org/stable/c/c88a9fd26cee365bec932196f76175772a941cca - Patch
References () https://git.kernel.org/stable/c/d1354873cbe3b344899c4311ac05897fd83e3f21 - () https://git.kernel.org/stable/c/d1354873cbe3b344899c4311ac05897fd83e3f21 - Patch
Summary
  • (es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: nf_tables: nft_dynset: corregir posible fuga de memoria de expresión con estado en la ruta de error Si 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.   objeto sin referencia (por CPU) 0x607b97e9cab8 (tamaño 16):     comm 'softirq', pid 0, jiffies 4294931867     volcado hexadecimal (primeros 16 bytes en la CPU 3):       00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00     rastreo de pila (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
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.11:-:*:*:*:*:*:*
CWE CWE-401
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

28 Mar 2026, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-28 08:15

Updated : 2026-06-01 17:16

NVD link : CVE-2026-23399

Mitre link : CVE-2026-23399

CVE.ORG link : CVE-2026-23399

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime