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CVE-2026-53274

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in __smc_setsockopt() causing local DoS A logic flaw in __smc_setsockopt() allows a local unprivileged user to cause a Denial of Service (DoS) by holding the socket lock indefinitely. The function __smc_setsockopt() calls copy_from_sockptr() while holding lock_sock(sk). By passing a userfaultfd-monitored memory page (or FUSE-backed memory on systems where unprivileged userfaultfd is disabled) as
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9b24259377c395b232031e46d1f867a017c3f5ae27c8f2b1f72ad66a05549d2d
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/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"35a22117839602bb52283de08894c5a7dde92420","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bde432fcae081","versionType":"git"},{"lessThan":"5d27d2ffe487df89ce28fda0410eafa05dbe03a0","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bde432fcae081","versionType":"git"},{"lessThan":"89f6fbe0033c942cb790ffd53ca93a45eeaf1c91","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bd…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/af_smc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"35a22117839602bb52283de08894c5a7dde92420","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bde432fcae081","versionType":"git"},{"lessThan":"5d27d2ffe487df89ce28fda0410eafa05dbe03a0","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bde432fcae081","versionType":"git"},{"lessThan":"89f6fbe0033c942cb790ffd53ca93a45eeaf1c91","status":"affected","version":"a6a6fe27bab48f0d09a64b051e7bd…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/affected/0

Source references

6 source assertions
{"url":"https://git.kernel.org/stable/c/35a22117839602bb52283de08894c5a7dde92420"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5d27d2ffe487df89ce28fda0410eafa05dbe03a0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/89f6fbe0033c942cb790ffd53ca93a45eeaf1c91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/94d286fa5eedc550d42bcb9c85416af8f77736ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/a3fdd924d88c30b9f488636ce0e4696012cf5511"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/dcd90f42a33e4220385f27b515183d0c91b2fc4a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bda33701d4d3652d6940824a67d8449b87c0df35b36b4aa6911ffdf8cc76b9c9 · sha256:eb88aa952d52ebb0… · /containers/cna/references/3

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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