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CVE-2026-64095

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: avoid double decrement of bla.num_requests The bla.num_requests is increased when no request_sent was in progress. And it is decremented in various places (announcement was received, backbone is purged, periodic work). But the check if the request_sent is actually set to a specific state and the atomic_dec/_inc are not safe because they are not atomic (TOCTOU) and multiple such code portions can run concurrent
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3b558318f890bf9a229d89477a212cfa3db9cf255e38ef49d06c819299a0e7e9
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/batman-adv/bridge_loop_avoidance.c","net/batman-adv/mesh-interface.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.5"},{"lessThan":"3.5","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":"semver"},{"lessThanOrEqual":"6.1.*","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c","net/batman-adv/mesh-interface.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1f013bc94154f2e78e97d0296175664224c796e0","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"5328b95960774f2e189f22485616bc7b8eb2f7e3","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"8ff9c59d1b7b48c259687…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c","net/batman-adv/mesh-interface.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.5"},{"lessThan":"3.5","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":"semver"},{"lessThanOrEqual":"6.1.*","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c","net/batman-adv/mesh-interface.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1f013bc94154f2e78e97d0296175664224c796e0","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"5328b95960774f2e189f22485616bc7b8eb2f7e3","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"8ff9c59d1b7b48c259687…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1f013bc94154f2e78e97d0296175664224c796e0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/45384612f29692fbf0c770200361a7acff90125c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/461f1e3dfb888701895b766446c55db2b10db705"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/5328b95960774f2e189f22485616bc7b8eb2f7e3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/65497ad155a3246df177b5ef662cd6e5a32cb470"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/83ab69bd12b80f6ea169c8bea6977701b53a043d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/8ff9c59d1b7b48c2596878341a5310f32895d52b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a9393751ecf7e9096f93cb6eed02db4f79125765"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bccbf81e72fb730efdd3ae20077b86df3d6d950e43397b33b9043be0d4a7e478 · sha256:77defba8d74750fb… · /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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