{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21904","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.785Z","datePublished":"2025-04-01T15:40:45.881Z","dateUpdated":"2026-05-11T21:08:46.568Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:08:46.568Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncaif_virtio: fix wrong pointer check in cfv_probe()\n\ndel_vqs() frees virtqueues, therefore cfv->vq_tx pointer should be checked\nfor NULL before calling it, not cfv->vdev. Also the current implementation\nis redundant because the pointer cfv->vdev is dereferenced before it is\nchecked for NULL.\n\nFix this by checking cfv->vq_tx for NULL instead of cfv->vdev before\ncalling del_vqs()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/caif/caif_virtio.c"],"versions":[{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"990fff6980d0c1693d60a812f58dbf93eab0473f","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"7b5fe58959822e6cfa884327cabba6be3b01883d","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"8e4e08ca4cc634b337bb74bc9a70758fdeda0bcb","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"29e0cd296c87240278e2f7ea4cf3f496b60c03af","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"90d302619ee7ce5ed0c69c29c290bdccfde66418","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"56cddf71cce3b15b078e937fadab29962b6f6643","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"597c27e5f04cb50e56cc9aeda75d3e42b6b89c3e","status":"affected","versionType":"git"},{"version":"0d2e1a2926b1839a4b74519e660739b2566c9386","lessThan":"a466fd7e9fafd975949e5945e2f70c33a94b1a70","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/caif/caif_virtio.c"],"versions":[{"version":"3.10","status":"affected"},{"version":"0","lessThan":"3.10","status":"unaffected","versionType":"semver"},{"version":"5.4.291","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.235","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.179","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.131","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.83","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.19","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.7","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.4.291"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.235"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.179"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.1.131"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.6.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.12.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.13.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/990fff6980d0c1693d60a812f58dbf93eab0473f"},{"url":"https://git.kernel.org/stable/c/7b5fe58959822e6cfa884327cabba6be3b01883d"},{"url":"https://git.kernel.org/stable/c/8e4e08ca4cc634b337bb74bc9a70758fdeda0bcb"},{"url":"https://git.kernel.org/stable/c/29e0cd296c87240278e2f7ea4cf3f496b60c03af"},{"url":"https://git.kernel.org/stable/c/90d302619ee7ce5ed0c69c29c290bdccfde66418"},{"url":"https://git.kernel.org/stable/c/56cddf71cce3b15b078e937fadab29962b6f6643"},{"url":"https://git.kernel.org/stable/c/597c27e5f04cb50e56cc9aeda75d3e42b6b89c3e"},{"url":"https://git.kernel.org/stable/c/a466fd7e9fafd975949e5945e2f70c33a94b1a70"}],"title":"caif_virtio: fix wrong pointer check in cfv_probe()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-21904","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:24:28.456354Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T19:26:35.007Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T19:38:48.685Z"}}]}}