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CVE Record

CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path

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

UnknownCVSS not scoredNot KEV-listedUpdated
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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
3Timeline events
1ADP providers
11Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4, 563125a73ac30d7036ae69ca35c40500562c1de4unaffected
LinuxLinux5.11, 0, 5.15.209, 6.1.175, 6.6.136, 6.12.78, 6.18.20, 6.19.10, 7.0affected
Weakness

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