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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-23399

nf_tables: nft_dynset: fix possible stateful expression memleak in error path

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Status
Published
Published
Updated
Assigning organization
Linux

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < eb7bf413e59945df03d4567b73ce464eebe2f4eaaffected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < 4357dbb1d9c35ca0b4443d71c98a48e6666f7689affected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < e6661add2d9c6913e1dad97336595e23a2bed195affected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < d1354873cbe3b344899c4311ac05897fd83e3f21affected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < 31641c682db73353e4647e40735c7f2a75ff58efaffected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < c88a9fd26cee365bec932196f76175772a941ccaaffected
  • 563125a73ac30d7036ae69ca35c40500562c1de4 to < 0548a13b5a145b16e4da0628b5936baf35f51b43affected

Linux Linux

Default version status: affected

  • 5.11affected
  • 0 to < 5.11unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.136 to ≤ 6.6.*unaffected
  • 6.12.78 to ≤ 6.12.*unaffected
  • 6.18.20 to ≤ 6.18.*unaffected
  • 6.19.10 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References