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CVE-2026-64137

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFS_GENL_CMD_SWN_NOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag, so any local process can send RESOURCE_CHANGE or CLIENT_MOVE notifications to the in-kernel witness handler. The same family exposes CIFS_GENL_MCGRP_SWN without multicast-group capability flags.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2a26737bd028cec467c386db12b82e7e54c7a3a739d30d86f612a636764dca2b
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":["fs/smb/client/netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9cf7eb8919344932f909b2fac76296f7656fda8d","status":"affected","version":"fed979a7e082bd9f25f9002c3c4f8740dacd0bc8","versionType":"git"},{"lessThan":"9919021a3b7974ae66a5f9915e3a48c10cfd409b","status":"affected","version":"fed979a7e082bd9f25f9002c3c4f8740dacd0bc8","versionType":"git"},{"lessThan":"969bc6370334a5b4720c5470783295d6484bbc95","status":"affected","version":"fed979a7e082bd9f25f900…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9cf7eb8919344932f909b2fac76296f7656fda8d","status":"affected","version":"fed979a7e082bd9f25f9002c3c4f8740dacd0bc8","versionType":"git"},{"lessThan":"9919021a3b7974ae66a5f9915e3a48c10cfd409b","status":"affected","version":"fed979a7e082bd9f25f9002c3c4f8740dacd0bc8","versionType":"git"},{"lessThan":"969bc6370334a5b4720c5470783295d6484bbc95","status":"affected","version":"fed979a7e082bd9f25f900…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/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:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/969bc6370334a5b4720c5470783295d6484bbc95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9919021a3b7974ae66a5f9915e3a48c10cfd409b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/9cf7eb8919344932f909b2fac76296f7656fda8d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/a3238b09c58f323e40743ce174cd0ab81b5c09ed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/a8d17d22db591099519a89f14dd24810daba74c3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/c2397b93fbb6f44a788fff30f99be2c20cc5e50f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/d1ebfce2c1d161186a82e77590bf7da2ea1bce91"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29e4cd8ae3839adb4f0a8d1912bd21fbf221cafd79179a19033d6a1579a83ab6 · sha256:05b6ea0c304ed9b7… · /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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