{"api_version":"1","generated_at":"2026-08-15T08:45:36+00:00","cve":"CVE-2026-74427","urls":{"html":"https://cve.report/CVE-2026-74427","api":"https://cve.report/api/cve/CVE-2026-74427.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74427","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74427"},"summary":{"title":"afs: Fix netns teardown to cancel the preallocation charger","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix netns teardown to cancel the preallocation charger\n\nFix the teardown of an afs network namespace to make sure it cancels the\nwork item that keeps the preallocated rxrpc call/conn/peer queue charged\nbefore incoming calls are disabled (i.e. listen 0).\n\nAlso, if net->live is false because the afs netns is being deleted, make\nafs_charge_preallocation() skip charging and make afs_rx_new_call() avoid\nrequeuing the charger.\n\n(This was found by AI review).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:44","updated_at":"2026-08-15 06:22:44"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539","name":"https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1","name":"https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153","name":"https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a","name":"https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7","name":"https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064","name":"https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9","name":"https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d","name":"https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74427","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74427","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 85d5fb80fe4f0cc836b6df83f26de204fe102ff7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/afs/rxrpc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"85d5fb80fe4f0cc836b6df83f26de204fe102ff7","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"a33975ff2b6ea47b8f29956403374b1cdd057539","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"b83ecf80e28afb7b6595ba79932e77ca68a5a83d","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"eec89c5f8e1adc1de4824042ef75f62aed804153","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"},{"lessThan":"47694fbc9d24ab6bf210f91e8efe06a10a478064","status":"affected","version":"00e907127e6f86d0f9b122d9b4347a8aa09a8b61","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/afs/rxrpc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.9"},{"lessThan":"4.9","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"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"4.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix netns teardown to cancel the preallocation charger\n\nFix the teardown of an afs network namespace to make sure it cancels the\nwork item that keeps the preallocated rxrpc call/conn/peer queue charged\nbefore incoming calls are disabled (i.e. listen 0).\n\nAlso, if net->live is false because the afs netns is being deleted, make\nafs_charge_preallocation() skip charging and make afs_rx_new_call() avoid\nrequeuing the charger.\n\n(This was found by AI review)."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:59:29.053Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9"},{"url":"https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1"},{"url":"https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a"},{"url":"https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7"},{"url":"https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539"},{"url":"https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d"},{"url":"https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153"},{"url":"https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064"}],"title":"afs: Fix netns teardown to cancel the preallocation charger","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74427","datePublished":"2026-08-15T05:59:29.053Z","dateReserved":"2026-08-15T05:44:03.895Z","dateUpdated":"2026-08-15T05:59:29.053Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:44","lastModifiedDate":"2026-08-15 06:22:44","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74427","Ordinal":"1","Title":"afs: Fix netns teardown to cancel the preallocation charger","CVE":"CVE-2026-74427","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74427","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix netns teardown to cancel the preallocation charger\n\nFix the teardown of an afs network namespace to make sure it cancels the\nwork item that keeps the preallocated rxrpc call/conn/peer queue charged\nbefore incoming calls are disabled (i.e. listen 0).\n\nAlso, if net->live is false because the afs netns is being deleted, make\nafs_charge_preallocation() skip charging and make afs_rx_new_call() avoid\nrequeuing the charger.\n\n(This was found by AI review).","Type":"Description","Title":"afs: Fix netns teardown to cancel the preallocation charger"}]}}}