CVE-2026-46322

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46322", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.112Z", "datePublished": "2026-06-09T12:11:14.776Z", "dateUpdated": "2026-10-19T19:36:58.325Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:31:17.322Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntun: free page on build_skb failure in tun_xdp_one()\n\nWhen build_skb() fails in tun_xdp_one(), the function sets ret to\n-ENOMEM and jumps to the out label, which returns without freeing the\npage that vhost_net_build_xdp() allocated for the frame. As with the\nshort-frame rejection path, tun_sendmsg() discards the per-buffer error\nand still returns total_len, so vhost_tx_batch() takes the success path\nand never frees the page. Each build_skb() failure in a batch leaks one\npage-frag chunk.\n\nFree the page before taking the error path, matching the put_page() the\nother error exits of tun_xdp_one() already perform."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached only through the TUN `sendmsg()` path with `TUN_MSG_PTR`, which in production is driven by host `vhost-net` processing virtio-net TX descriptors from a VM guest or a local process holding a TUN/vhost-net fd\u2014not by the host parsing remote network packets.\nAC:L - An attacker can reliably trigger `build_skb()` failure by first pressuring the `sk_buff` slab (e.g., flooding virtio TX or other allocations) and then sending batched virtio TX frames; they control both the memory-pressure side and the batch submission side.\nPR:N - In the highest-impact scenario\u2014a malicious tenant in a cloud/KVM guest with virtio-net and vhost-net\u2014the attacker needs no host privileges; any guest process that can transmit on the virtio TX queue can drive this path.\nUI:N - Exploitation requires no victim interaction beyond normal VM networking; the guest attacker can trigger the leak programmatically without the host user performing any action.\nS:C - The leak consumes host kernel memory from a guest VM security context, crossing the VM/host boundary and impacting resources outside the attacker's guest security authority.\nC:N - This is a pure page reference leak with no out-of-bounds access, use-after-free, or attacker-readable disclosure; leaked pages remain in the kernel allocator and are not exposed to the attacker.\nI:N - No memory corruption, arbitrary write, or control-flow hijack occurs; the only defect is failing to `put_page()` on the `build_skb()` error path.\nA:H - Each failed `build_skb()` leaks a page-frag (~4 KiB), batches can hold up to 64 XDP buffers, and `tun_sendmsg()` masks per-buffer errors so leaks are unbounded and repeatable, enabling sustained host kernel memory exhaustion and OOM/DoS."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/tun.c"], "versions": [{"version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9", "status": "affected", "versionType": "git"}, {"version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "793385c154771603b8671dd8338927221e9d8d78", "status": "affected", "versionType": "git"}, {"version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "2638a9c1521905bb5c5d1e95c8fbc09f79148ed7", "status": "affected", "versionType": "git"}, {"version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "60d9c0d6cdde5420d6483c921b16fe5465eb5238", "status": "affected", "versionType": "git"}, 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"5.10.259"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.15.210"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.1.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.93"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9"}, {"url": "https://git.kernel.org/stable/c/793385c154771603b8671dd8338927221e9d8d78"}, {"url": "https://git.kernel.org/stable/c/2638a9c1521905bb5c5d1e95c8fbc09f79148ed7"}, {"url": "https://git.kernel.org/stable/c/60d9c0d6cdde5420d6483c921b16fe5465eb5238"}, {"url": "https://git.kernel.org/stable/c/d16e38fac09a47bfcf98c1ad65a1bb53f94540f5"}, {"url": "https://git.kernel.org/stable/c/aa308e9dbb9acb17cacdbbce9e4504f69bac8385"}, {"url": "https://git.kernel.org/stable/c/4fefc6156a162a9f50035c12091a5e5130c82c6e"}, {"url": "https://git.kernel.org/stable/c/aa8963fdce667a42fb7f0bdd2909fadcab02f9a8"}], "title": "tun: free page on build_skb failure in tun_xdp_one()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:21:37.036Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46322", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:22:05.058396Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:36:58.325Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}], "x_adpType": "supplier", "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}], "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:21:37.036Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46322", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:22:05.058396Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-401", "description": "CWE-401 Missing Release of Memory after Effective Lifetime"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:22:05.627Z"}}], "cna": {"title": "tun: free page on build_skb failure in tun_xdp_one()", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached only through the TUN `sendmsg()` path with `TUN_MSG_PTR`, which in production is driven by host `vhost-net` processing virtio-net TX descriptors from a VM guest or a local process holding a TUN/vhost-net fd\u2014not by the host parsing remote network packets.\nAC:L - An attacker can reliably trigger `build_skb()` failure by first pressuring the `sk_buff` slab (e.g., flooding virtio TX or other allocations) and then sending batched virtio TX frames; they control both the memory-pressure side and the batch submission side.\nPR:N - In the highest-impact scenario\u2014a malicious tenant in a cloud/KVM guest with virtio-net and vhost-net\u2014the attacker needs no host privileges; any guest process that can transmit on the virtio TX queue can drive this path.\nUI:N - Exploitation requires no victim interaction beyond normal VM networking; the guest attacker can trigger the leak programmatically without the host user performing any action.\nS:C - The leak consumes host kernel memory from a guest VM security context, crossing the VM/host boundary and impacting resources outside the attacker's guest security authority.\nC:N - This is a pure page reference leak with no out-of-bounds access, use-after-free, or attacker-readable disclosure; leaked pages remain in the kernel allocator and are not exposed to the attacker.\nI:N - No memory corruption, arbitrary write, or control-flow hijack occurs; the only defect is failing to `put_page()` on the `build_skb()` error path.\nA:H - Each failed `build_skb()` leaks a page-frag (~4 KiB), batches can hold up to 64 XDP buffers, and `tun_sendmsg()` masks per-buffer errors so leaks are unbounded and repeatable, enabling sustained host kernel memory exhaustion and OOM/DoS."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "793385c154771603b8671dd8338927221e9d8d78", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "2638a9c1521905bb5c5d1e95c8fbc09f79148ed7", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "60d9c0d6cdde5420d6483c921b16fe5465eb5238", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "d16e38fac09a47bfcf98c1ad65a1bb53f94540f5", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "aa308e9dbb9acb17cacdbbce9e4504f69bac8385", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "4fefc6156a162a9f50035c12091a5e5130c82c6e", "versionType": "git"}, {"status": "affected", "version": "043d222f93ab8c76b56a3b315cd8692e35affb6c", "lessThan": "aa8963fdce667a42fb7f0bdd2909fadcab02f9a8", "versionType": "git"}], "programFiles": ["drivers/net/tun.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.20"}, {"status": "unaffected", "version": "0", "lessThan": "4.20", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.259", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.210", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.93", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.35", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.12", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/tun.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9"}, {"url": "https://git.kernel.org/stable/c/793385c154771603b8671dd8338927221e9d8d78"}, {"url": "https://git.kernel.org/stable/c/2638a9c1521905bb5c5d1e95c8fbc09f79148ed7"}, {"url": "https://git.kernel.org/stable/c/60d9c0d6cdde5420d6483c921b16fe5465eb5238"}, {"url": "https://git.kernel.org/stable/c/d16e38fac09a47bfcf98c1ad65a1bb53f94540f5"}, {"url": "https://git.kernel.org/stable/c/aa308e9dbb9acb17cacdbbce9e4504f69bac8385"}, {"url": "https://git.kernel.org/stable/c/4fefc6156a162a9f50035c12091a5e5130c82c6e"}, {"url": "https://git.kernel.org/stable/c/aa8963fdce667a42fb7f0bdd2909fadcab02f9a8"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntun: free page on build_skb failure in tun_xdp_one()\n\nWhen build_skb() fails in tun_xdp_one(), the function sets ret to\n-ENOMEM and jumps to the out label, which returns without freeing the\npage that vhost_net_build_xdp() allocated for the frame. As with the\nshort-frame rejection path, tun_sendmsg() discards the per-buffer error\nand still returns total_len, so vhost_tx_batch() takes the success path\nand never frees the page. Each build_skb() failure in a batch leaks one\npage-frag chunk.\n\nFree the page before taking the error path, matching the put_page() the\nother error exits of tun_xdp_one() already perform."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.259", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.210", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.176", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.143", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.93", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.35", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.12", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "4.20"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:31:17.322Z"}}}, "cveMetadata": {"cveId": "CVE-2026-46322", "state": "PUBLISHED", "dateUpdated": "2026-10-19T19:36:58.325Z", "dateReserved": "2026-05-13T15:03:33.112Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-06-09T12:11:14.776Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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As with the\nshort-frame rejection path, tun_sendmsg() discards the per-buffer error\nand still returns total_len, so vhost_tx_batch() takes the success path\nand never frees the page. Each build_skb() failure in a batch leaks one\npage-frag chunk.\n\nFree the page before taking the error path, matching the put_page() the\nother error exits of tun_xdp_one() already perform."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ntun: liberar p\u00e1gina en caso de fallo de build_skb() en tun_xdp_one()\n\nCuando build_skb() falla en tun_xdp_one(), la funci\u00f3n establece ret en -ENOMEM y salta a la etiqueta out, la cual retorna sin liberar la p\u00e1gina que vhost_net_build_xdp() asign\u00f3 para el frame. Al igual que con la ruta de rechazo de frames cortos, tun_sendmsg() descarta el error por b\u00fafer y a\u00fan retorna total_len, por lo que vhost_tx_batch() toma la ruta de \u00e9xito y nunca libera la p\u00e1gina. Cada fallo de build_skb() en un lote fuga un fragmento de p\u00e1gina.\n\nLiberar la p\u00e1gina antes de tomar la ruta de error, coincidiendo con el put_page() que las otras salidas de error de tun_xdp_one() ya realizan."}], "id": "CVE-2026-46322", "lastModified": "2026-10-19T20:18:43.000", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 4.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46322", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:22:05.058396Z", "version": "2.0.3"}}]}, "published": "2026-06-09T13:16:37.603", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2638a9c1521905bb5c5d1e95c8fbc09f79148ed7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4fefc6156a162a9f50035c12091a5e5130c82c6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/60d9c0d6cdde5420d6483c921b16fe5465eb5238"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/793385c154771603b8671dd8338927221e9d8d78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aa308e9dbb9acb17cacdbbce9e4504f69bac8385"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aa8963fdce667a42fb7f0bdd2909fadcab02f9a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d16e38fac09a47bfcf98c1ad65a1bb53f94540f5"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: tun: free page on build_skb failure in tun_xdp_one()", "id": "2486987", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486987"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `tun` driver. This vulnerability occurs when the `build_skb()` function fails within `tun_xdp_one()`, leading to a failure to free an allocated memory page. Each such failure results in a memory leak, where a 'page-frag chunk' is not released. Over time, repeated exploitation of this flaw could lead to memory exhaustion, resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-46322", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46322\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46322\nhttps://lore.kernel.org/linux-cve-announce/2026060925-CVE-2026-46322-15c5@gregkh/T"], "threat_severity": "Moderate"}

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