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CVE-2026-31629

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: add missing return after LLCP_CLOSED checks In nfc_llcp_recv_hdlc() and nfc_llcp_recv_disc(), when the socket state is LLCP_CLOSED, the code correctly calls release_sock() and nfc_llcp_sock_put() but fails to return. Execution falls through to the remainder of the function, which calls release_sock() and nfc_llcp_sock_put() again. This results in a double release_sock() and a refcount underflow via double nfc_llcp_s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ddf3922ce2cbeddf0f2705d83d4c4983b4094c28039c3bbaaeda6ed21dbb3b97
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":"unaffected","product":"Linux","programFiles":["net/nfc/llcp_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b2a23529593d011fb433a3d711fc597ed6a6bd2f","status":"affected","version":"d646960f7986fefb460a2b062d5ccc8ccfeacc3a","versionType":"git"},{"lessThan":"665315df9c3486cb213fc44d83cc8bcd47fe0d26","status":"affected","version":"d646960f7986fefb460a2b062d5ccc8ccfeacc3a","versionType":"git"},{"lessThan":"9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6","status":"affected","version":"d646960f7986fefb460a2b062d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/nfc/llcp_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.3"},{"lessThan":"3.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/nfc/llcp_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b2a23529593d011fb433a3d711fc597ed6a6bd2f","status":"affected","version":"d646960f7986fefb460a2b062d5ccc8ccfeacc3a","versionType":"git"},{"lessThan":"665315df9c3486cb213fc44d83cc8bcd47fe0d26","status":"affected","version":"d646960f7986fefb460a2b062d5ccc8ccfeacc3a","versionType":"git"},{"lessThan":"9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6","status":"affected","version":"d646960f7986fefb460a2b062d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/nfc/llcp_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.3"},{"lessThan":"3.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/metrics/0/cvssV3_1

Source references

9 source assertions
{"url":"https://git.kernel.org/stable/c/0eb1263a3b8c36418c9ba295c9ab3abed664edbf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/2b5dd4632966c39da6ba74dbc8689b309065e82c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/8
{"url":"https://git.kernel.org/stable/c/665315df9c3486cb213fc44d83cc8bcd47fe0d26"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/796e0cac058252d0ad34ebe288e6f7979b5fc9b2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/8977fad2b3c6eefd414131168d597c5d1d5e1abf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/aba4712e8f0381cd5d196534ce2ad082626a5ab6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/b2a23529593d011fb433a3d711fc597ed6a6bd2f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ff3d9e8f7244293e303f7b6ef70774291c7c27e9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:204c33f83077d9c40d38396a278decef4f39b34b772cb3addc3157765a5ef4b4 · sha256:adc5a4c5443f44a1… · /containers/cna/references/6

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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