CVE-2025-68353

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68353", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.300Z", "datePublished": "2025-12-24T10:32:44.068Z", "dateUpdated": "2026-10-21T12:38:14.894Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:38:14.894Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: vxlan: prevent NULL deref in vxlan_xmit_one\n\nNeither sock4 nor sock6 pointers are guaranteed to be non-NULL in\nvxlan_xmit_one, e.g. if the iface is brought down. This can lead to the\nfollowing NULL dereference:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:vxlan_xmit_one+0xbb3/0x1580\n Call Trace:\n vxlan_xmit+0x429/0x610\n dev_hard_start_xmit+0x55/0xa0\n __dev_queue_xmit+0x6d0/0x7f0\n ip_finish_output2+0x24b/0x590\n ip_output+0x63/0x110\n\nMentioned commits changed the code path in vxlan_xmit_one and as a side\neffect the sock4/6 pointer validity checks in vxlan(6)_get_route were\nlost. Fix this by adding back checks.\n\nSince both commits being fixed were released in the same version (v6.7)\nand are strongly related, bundle the fixes in a single commit."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/vxlan/vxlan_core.c"], "versions": [{"version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "lessThan": "333deb6b43c11d5bce00463b364ac993d2fa02a6", "status": "affected", "versionType": "git"}, {"version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "lessThan": "4ac26aafdc8c7271414e2e7c0b2cb266a26591bc", "status": "affected", "versionType": "git"}, {"version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "lessThan": "1f73a56f986005f0bc64ed23873930e2ee4f5911", "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/vxlan/vxlan_core.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "6.7", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/333deb6b43c11d5bce00463b364ac993d2fa02a6"}, {"url": "https://git.kernel.org/stable/c/4ac26aafdc8c7271414e2e7c0b2cb266a26591bc"}, {"url": "https://git.kernel.org/stable/c/1f73a56f986005f0bc64ed23873930e2ee4f5911"}], "title": "net: vxlan: prevent NULL deref in vxlan_xmit_one", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/vxlan/vxlan_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "333deb6b43c11d5bce00463b364ac993d2fa02a6", "status": "affected", "version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "versionType": "git"}, {"lessThan": "4ac26aafdc8c7271414e2e7c0b2cb266a26591bc", "status": "affected", "version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "versionType": "git"}, {"lessThan": "1f73a56f986005f0bc64ed23873930e2ee4f5911", "status": "affected", "version": "6f19b2c136d98a84d79030b53e23d405edfdc783", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/vxlan/vxlan_core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: vxlan: prevent NULL deref in vxlan_xmit_one\n\nNeither sock4 nor sock6 pointers are guaranteed to be non-NULL in\nvxlan_xmit_one, e.g. if the iface is brought down. This can lead to the\nfollowing NULL dereference:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000010\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:vxlan_xmit_one+0xbb3/0x1580\n Call Trace:\n vxlan_xmit+0x429/0x610\n dev_hard_start_xmit+0x55/0xa0\n __dev_queue_xmit+0x6d0/0x7f0\n ip_finish_output2+0x24b/0x590\n ip_output+0x63/0x110\n\nMentioned commits changed the code path in vxlan_xmit_one and as a side\neffect the sock4/6 pointer validity checks in vxlan(6)_get_route were\nlost. Fix this by adding back checks.\n\nSince both commits being fixed were released in the same version (v6.7)\nand are strongly related, bundle the fixes in a single commit."}, {"lang": "es", "value": "En el kernel de Linux, se ha corregido la siguiente vulnerabilidad:\\n\\nnet: vxlan: prevenir desreferenciaci\u00f3n NULL en vxlan_xmit_one\\n\\nNi los punteros sock4 ni sock6 est\u00e1n garantizados como no NULL en vxlan_xmit_one, por ejemplo si la interfaz se desactiva. Esto puede provocar la siguiente desreferenciaci\u00f3n NULL:\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000010\\n Oops: Oops: 0000 [#1] SMP NOPTI\\n RIP: 0010:vxlan_xmit_one+0xbb3/0x1580\\n Call Trace:\\n vxlan_xmit+0x429/0x610\\n dev_hard_start_xmit+0x55/0xa0\\n __dev_queue_xmit+0x6d0/0x7f0\\n ip_finish_output2+0x24b/0x590\\n ip_output+0x63/0x110\\n\\nLos commits mencionados modificaron la ruta de c\u00f3digo en vxlan_xmit_one y, como efecto colateral, se perdieron las comprobaciones de validez de los punteros sock4/6 en vxlan(6)_get_route. Se corrige a\u00f1adiendo nuevamente esas verificaciones.\\n\\nDado que ambos commits corregidos se publicaron en la misma versi\u00f3n (v6.7) y est\u00e1n estrechamente relacionados, se agrupan las correcciones en un \u00fanico commit."}], "id": "CVE-2025-68353", "lastModified": "2026-10-21T13:18:22.580", "metrics": {}, "published": "2025-12-24T11:15:58.653", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f73a56f986005f0bc64ed23873930e2ee4f5911"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/333deb6b43c11d5bce00463b364ac993d2fa02a6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4ac26aafdc8c7271414e2e7c0b2cb266a26591bc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: net: vxlan: prevent NULL deref in vxlan_xmit_one", "id": "2424860", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424860"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68353", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68353\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68353\nhttps://lore.kernel.org/linux-cve-announce/2025122455-CVE-2025-68353-8704@gregkh/T"], "threat_severity": "Moderate"}

{}