CVE Explorer

CVE-2026-64557

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb() l2cap_sock_new_connection_cb() returned l2cap_pi(sk)->chan after release_sock(parent). Once the parent lock is dropped the newly enqueued child socket sk is reachable via the accept queue, so another task can accept and free it before the callback dereferences sk, resulting in a use-after-free. Rework the ->new_connection() op so the core, rather than the

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:82c67d77285f233a74b751362f2b393fb26b0cc14db9b7e87e933936ef923f36

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/6lowpan.c","net/bluetooth/l2cap_core.c","net/bluetooth/l2cap_sock.c","net/bluetooth/smp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.13"},{"lessThan":"3.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"s…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/6lowpan.c","net/bluetooth/l2cap_core.c","net/bluetooth/l2cap_sock.c","net/bluetooth/smp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b39298044e5534612511a2ff5de03ba5f6e7a820","status":"affected","version":"8ffb929098a56939ac71509302eeab5b207bf262","versionType":"git"},{"lessThan":"8c37e4338c801ebb8cee52436c01c41e009f6e87","status":"affected","version":"8ffb929098a56939ac71509302eeab5b207bf262","versionType":"gi…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/affected/0

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:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions

{"url":"https://git.kernel.org/stable/c/36da806f7fbaee56ad9e81859deec203f9728700"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/6fef032af0092ed5ccb767239a9ac1bc38c08a40"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/733e76e74e406c1d1ddc7369420dd8a47f48bb8a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/84e718b6a814edc84159361f9f454a4e92ae91ae"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/8c37e4338c801ebb8cee52436c01c41e009f6e87"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/b39298044e5534612511a2ff5de03ba5f6e7a820"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:701c69cd9641c0097e19d57bbd036194f71754524e14c9d57aee4c3975068bc6 · sha256:211e218925471168… · /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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