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CVE-2026-23331

In the Linux kernel, the following vulnerability has been resolved: udp: Unhash auto-bound connected sk from 4-tuple hash table when disconnected. Let's say we bind() an UDP socket to the wildcard address with a non-zero port, connect() it to an address, and disconnect it from the address. bind() sets SOCK_BINDPORT_LOCK on sk->sk_userlocks (but not SOCK_BINDADDR_LOCK), and connect() calls udp_lib_hash4() to put the socket into the 4-tuple hash table. Then, __udp_disconnect() calls sk->sk_pro
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:523fee030b75185da11811b8f43b091bd44ef8190621701224b369a7be0cc140
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b955350778b8715e1b7885179979b3a68221c0fb","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cdd05514380","versionType":"git"},{"lessThan":"3b8f104880c104151f8c30f2f89df81fb59a286c","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cdd05514380","versionType":"git"},{"lessThan":"6996a2d2d0a64808c19c98002aeb5d9d1b2df6a4","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cd…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b955350778b8715e1b7885179979b3a68221c0fb","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cdd05514380","versionType":"git"},{"lessThan":"3b8f104880c104151f8c30f2f89df81fb59a286c","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cdd05514380","versionType":"git"},{"lessThan":"6996a2d2d0a64808c19c98002aeb5d9d1b2df6a4","status":"affected","version":"78c91ae2c6deb5d236a5a93ff2995cd…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/3b8f104880c104151f8c30f2f89df81fb59a286c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/6996a2d2d0a64808c19c98002aeb5d9d1b2df6a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b955350778b8715e1b7885179979b3a68221c0fb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7b162ccba1879f3ee8ea35649291c493d88faaa00e8dc48ee504425b39c1dc0a · sha256:8b68b3ec0eada033… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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