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CVE-2026-53357

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() bt_accept_dequeue() unlinks a not-yet-accepted child from the parent accept queue and release_sock()s it before returning, so the returned sk has no caller reference and is unlocked. l2cap_sock_cleanup_listen() walks these children on listening-socket close. A concurrent HCI disconnect drives hci_rx_work -> l2cap_conn_del() which runs l2cap_chan_del() + l2
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4751ebdff6f29bffe53712bd58f3b8fc23f793e734a6be70b105b00fe6bf6279
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/bluetooth/af_bluetooth.c","net/bluetooth/iso.c","net/bluetooth/l2cap_sock.c","net/bluetooth/rfcomm/sock.c","net/bluetooth/sco.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"751de6ec671fe75ad9cf65a0638d2a06b6a5984d","status":"affected","version":"15f02b91056253e8cdc592888f431da0731337b8","versionType":"git"},{"lessThan":"407217734835d21d4e0105ebf347860dc1806f88","status":"affected","version":"15f02b91056253e8cdc592888f431da0731337b8","versionType":"git"},…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/af_bluetooth.c","net/bluetooth/iso.c","net/bluetooth/l2cap_sock.c","net/bluetooth/rfcomm/sock.c","net/bluetooth/sco.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"sem…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/af_bluetooth.c","net/bluetooth/iso.c","net/bluetooth/l2cap_sock.c","net/bluetooth/rfcomm/sock.c","net/bluetooth/sco.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"751de6ec671fe75ad9cf65a0638d2a06b6a5984d","status":"affected","version":"15f02b91056253e8cdc592888f431da0731337b8","versionType":"git"},{"lessThan":"407217734835d21d4e0105ebf347860dc1806f88","status":"affected","version":"15f02b91056253e8cdc592888f431da0731337b8","versionType":"git"},…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/af_bluetooth.c","net/bluetooth/iso.c","net/bluetooth/l2cap_sock.c","net/bluetooth/rfcomm/sock.c","net/bluetooth/sco.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"sem…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:L/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:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/407217734835d21d4e0105ebf347860dc1806f88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/5d86d2f1b4d9a508c441d3e45277ae1a73cfed57"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/751de6ec671fe75ad9cf65a0638d2a06b6a5984d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/7eebd4c2c86f573af87ff165d08a83432eb0b919"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/87c543e2f78d0871f271df92dab98901bbd5b6f5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/a5ca86a6097a8b030ca3226cd300b17ed330f966"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ab1513597c6cf17cd1ad2a21e3b045421b48e022"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/added1213395071470a900cc845a042fb51882a6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:88e53d6403700e85d0fdc0888a66051b8588a723a956fb1417ed7568f27281f2 · sha256:ab4a374979e4ef6e… · /containers/cna/references/5

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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