CVE-2026-43199

{"id": "CVE-2026-43199", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43199", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:15:41.077140Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "5efde07521309274f26727860774614cbc187242", "versionType": "git"}, {"status": "affected", "version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "e1407fb7c337373dfaaae2445d828b0b9ae26a29", "versionType": "git"}, {"status": "affected", "version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "57957bc7f1865778ec9b1618e15515feb6df7eb4", "versionType": "git"}, {"status": "affected", "version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "546de94e41e92e1f7dc6213615fb7c794d05db98", "versionType": "git"}, {"status": "affected", "version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "859380694f434597407632c29f30fdb5e763e6cc", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"status": "unaffected", "version": "0", "lessThan": "6.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.16", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.6", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T12:16:38.970", "references": [{"url": "https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5efde07521309274f26727860774614cbc187242", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix \"scheduling while atomic\" in IPsec MAC address query\n\nFix a \"scheduling while atomic\" bug in mlx5e_ipsec_init_macs() by\nreplacing mlx5_query_mac_address() with ether_addr_copy() to get the\nlocal MAC address directly from netdev->dev_addr.\n\nThe issue occurs because mlx5_query_mac_address() queries the hardware\nwhich involves mlx5_cmd_exec() that can sleep, but it is called from\nthe mlx5e_ipsec_handle_event workqueue which runs in atomic context.\n\nThe MAC address is already available in netdev->dev_addr, so no need\nto query hardware. This avoids the sleeping call and resolves the bug.\n\nCall trace:\n BUG: scheduling while atomic: kworker/u112:2/69344/0x00000200\n __schedule+0x7ab/0xa20\n schedule+0x1c/0xb0\n schedule_timeout+0x6e/0xf0\n __wait_for_common+0x91/0x1b0\n cmd_exec+0xa85/0xff0 [mlx5_core]\n mlx5_cmd_exec+0x1f/0x50 [mlx5_core]\n mlx5_query_nic_vport_mac_address+0x7b/0xd0 [mlx5_core]\n mlx5_query_mac_address+0x19/0x30 [mlx5_core]\n mlx5e_ipsec_init_macs+0xc1/0x720 [mlx5_core]\n mlx5e_ipsec_build_accel_xfrm_attrs+0x422/0x670 [mlx5_core]\n mlx5e_ipsec_handle_event+0x2b9/0x460 [mlx5_core]\n process_one_work+0x178/0x2e0\n worker_thread+0x2ea/0x430"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet/mlx5e: Correcci\u00f3n de \u2019scheduling while atomic\u2019 en la consulta de direcci\u00f3n MAC de IPsec\n\nSe corrige un error de \u2019scheduling while atomic\u2019 en mlx5e_ipsec_init_macs() reemplazando mlx5_query_mac_address() con ether_addr_copy() para obtener la direcci\u00f3n MAC local directamente de netdev -> dev_addr.\n\nEl problema ocurre porque mlx5_query_mac_address() consulta el hardware, lo que implica mlx5_cmd_exec() que puede suspenderse, pero es llamada desde la workqueue mlx5e_ipsec_handle_event que se ejecuta en contexto at\u00f3mico.\n\nLa direcci\u00f3n MAC ya est\u00e1 disponible en netdev -> dev_addr, por lo que no es necesario consultar el hardware. Esto evita la llamada de suspensi\u00f3n y resuelve el error.\n\nRastreo de llamadas:\n ERROR: \u2019scheduling while atomic\u2019: kworker/u112:2/69344/0x 00000200\n __schedule+0x7ab/0xa20\n schedule+0x1c/0xb0\n schedule_timeout+0x6e/0xf0\n __wait_for_common+0x91/0x1b0\n cmd_exec+0xa85/0xff0 [mlx5_core]\n mlx5_cmd_exec+0x1f/0x50 [mlx5_core]\n mlx5_query_nic_vport_mac_address+0x7b/0xd0 [mlx5_core]\n mlx5_query_mac_address+0x19/0x30 [mlx5_core]\n mlx5e_ipsec_init_macs+0xc1/0x720 [mlx5_core]\n mlx5e_ipsec_build_accel_xfrm_attrs+0x422/0x670 [mlx5_core]\n mlx5e_ipsec_handle_event+0x2b9/0x460 [mlx5_core]\n process_one_work+0x178/0x2e0\n worker_thread+0x2ea/0x430"}], "lastModified": "2026-11-11T20:10:00.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "962DD04D-AFB4-4916-A3EC-C09D8519676D", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}