{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43199", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.992Z", "datePublished": "2026-05-06T11:28:06.232Z", "dateUpdated": "2026-05-11T22:19:45.756Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:19:45.756Z"}, "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"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"], "versions": [{"version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "e1407fb7c337373dfaaae2445d828b0b9ae26a29", "status": "affected", "versionType": "git"}, {"version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "57957bc7f1865778ec9b1618e15515feb6df7eb4", "status": "affected", "versionType": "git"}, {"version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "546de94e41e92e1f7dc6213615fb7c794d05db98", "status": "affected", "versionType": "git"}, {"version": "cee137a634318bfbda18ee5af45d300153b57fa5", "lessThan": "859380694f434597407632c29f30fdb5e763e6cc", "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/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.2", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29"}, {"url": "https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4"}, {"url": "https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98"}, {"url": "https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc"}], "title": "net/mlx5e: Fix \"scheduling while atomic\" in IPsec MAC address query", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "962DD04D-AFB4-4916-A3EC-C09D8519676D", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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"}], "id": "CVE-2026-43199", "lastModified": "2026-05-11T20:12:24.760", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-06T12:16:38.970", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/mlx5e: Fix \"scheduling while atomic\" in IPsec MAC address query", "id": "2467098", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467098"}, "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"}, "cwe": "CWE-368", "details": ["A flaw was found in the Linux kernel's net/mlx5e component. This vulnerability, identified as a \"scheduling while atomic\" bug, occurs when the mlx5e_ipsec_init_macs() function attempts to query the hardware for a MAC address in an atomic context, which can lead to the system attempting to sleep. A local attacker could potentially trigger this condition, leading to system instability or a kernel panic, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-43199", "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": "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": "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43199\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43199\nhttps://lore.kernel.org/linux-cve-announce/2026050645-CVE-2026-43199-6376@gregkh/T"], "threat_severity": "Moderate"}

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