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CVE-2026-64541

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket smc_cdc_rx_handler() looks up the connection by token under the link group's conns_lock, drops the lock, and then dereferences conn and the smc_sock derived from it, ending in sock_hold(&smc->sk) inside smc_cdc_msg_recv(). No reference is held across the lock release. The only reference pinning the socket while the connection is discoverable in the link group is t
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:17f57a9c65b78fe92c4db6934e5f8ab0d79e4849ce4a35b513aaf204cff2a1d8
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/smc/smc_cdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8de4f665d0febfb92803dece377791a563fc7041","status":"affected","version":"d7b0e37c1ac152905b18a5b9506179091a35b0b6","versionType":"git"},{"lessThan":"8145b432136285e01091815b48ceb2dae261f262","status":"affected","version":"d7b0e37c1ac152905b18a5b9506179091a35b0b6","versionType":"git"},{"lessThan":"1951bffbc6493ec34cff3956b29d4bc6606904a6","status":"affected","version":"d7b0e37c1ac152905b18a5b95061…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/smc_cdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.18"},{"lessThan":"4.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/smc_cdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8de4f665d0febfb92803dece377791a563fc7041","status":"affected","version":"d7b0e37c1ac152905b18a5b9506179091a35b0b6","versionType":"git"},{"lessThan":"8145b432136285e01091815b48ceb2dae261f262","status":"affected","version":"d7b0e37c1ac152905b18a5b9506179091a35b0b6","versionType":"git"},{"lessThan":"1951bffbc6493ec34cff3956b29d4bc6606904a6","status":"affected","version":"d7b0e37c1ac152905b18a5b95061…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/smc_cdc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.18"},{"lessThan":"4.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/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:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1951bffbc6493ec34cff3956b29d4bc6606904a6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3bfb96d9bc6a7ed0b99c7db329cc2e22a28d84bb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/472e9d7c0d5b03be3ff91ff941f57da822b031bc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/647b19e5cc145a2f1f685ae8ff3805a17356888c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/8145b432136285e01091815b48ceb2dae261f262"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/8de4f665d0febfb92803dece377791a563fc7041"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9d160b35cc34a2ba8229d07651468a7848325135"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/ce5aa8084329351086894aa34d77e40301d5bd3d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1b21f67315eb7aabb596db0b7932100f93fc7549a33008c095e96bbced29bae0 · sha256:43d07fba3254a5af… · /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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