{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50296", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.986Z", "datePublished": "2024-11-19T01:30:43.318Z", "dateUpdated": "2026-05-23T15:55:00.827Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:55:00.827Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hns3: fix kernel crash when uninstalling driver\n\nWhen the driver is uninstalled and the VF is disabled concurrently, a\nkernel crash occurs. The reason is that the two actions call function\npci_disable_sriov(). The num_VFs is checked to determine whether to\nrelease the corresponding resources. During the second calling, num_VFs\nis not 0 and the resource release function is called. However, the\ncorresponding resource has been released during the first invoking.\nTherefore, the problem occurs:\n\n[15277.839633][T50670] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020\n...\n[15278.131557][T50670] Call trace:\n[15278.134686][T50670] klist_put+0x28/0x12c\n[15278.138682][T50670] klist_del+0x14/0x20\n[15278.142592][T50670] device_del+0xbc/0x3c0\n[15278.146676][T50670] pci_remove_bus_device+0x84/0x120\n[15278.151714][T50670] pci_stop_and_remove_bus_device+0x6c/0x80\n[15278.157447][T50670] pci_iov_remove_virtfn+0xb4/0x12c\n[15278.162485][T50670] sriov_disable+0x50/0x11c\n[15278.166829][T50670] pci_disable_sriov+0x24/0x30\n[15278.171433][T50670] hnae3_unregister_ae_algo_prepare+0x60/0x90 [hnae3]\n[15278.178039][T50670] hclge_exit+0x28/0xd0 [hclge]\n[15278.182730][T50670] __se_sys_delete_module.isra.0+0x164/0x230\n[15278.188550][T50670] __arm64_sys_delete_module+0x1c/0x30\n[15278.193848][T50670] invoke_syscall+0x50/0x11c\n[15278.198278][T50670] el0_svc_common.constprop.0+0x158/0x164\n[15278.203837][T50670] do_el0_svc+0x34/0xcc\n[15278.207834][T50670] el0_svc+0x20/0x30\n\nFor details, see the following figure.\n\n rmmod hclge disable VFs\n----------------------------------------------------\nhclge_exit() sriov_numvfs_store()\n ... device_lock()\n pci_disable_sriov() hns3_pci_sriov_configure()\n pci_disable_sriov()\n sriov_disable()\n sriov_disable() if !num_VFs :\n if !num_VFs : return;\n return; sriov_del_vfs()\n sriov_del_vfs() ...\n ... klist_put()\n klist_put() ...\n ... num_VFs = 0;\n num_VFs = 0; device_unlock();\n\nIn this patch, when driver is removing, we get the device_lock()\nto protect num_VFs, just like sriov_numvfs_store()." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/hisilicon/hns3/hnae3.c" ], "versions": [ { "version": "b06ad258e01389ca3ff13bc180f3fcd6a608f1cd", "lessThan": "a0df055775f30850c0da8f7dab40d67c0fd63908", "status": "affected", "versionType": "git" }, { "version": "c4b64011e458aa2b246cd4e42012cfd83d2d9a5c", "lessThan": "7ae4e56de7dbd0999578246a536cf52a63f4056d", "status": "affected", "versionType": "git" }, { "version": "d36b15e3e7b5937cb1f6ac590a85facc3a320642", "lessThan": "590a4b2d4e0b73586e88bce9b8135b593355ec09", "status": "affected", "versionType": "git" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "lessThan": "e36482b222e00cc7aeeea772fc0cf2943590bc4d", "status": "affected", "versionType": "git" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "lessThan": "76b155e14d9b182ce83d32ada2d0d7219ea8c8dd", "status": "affected", "versionType": "git" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "lessThan": "719edd9f3372ce7fb3b157647c6658672946874b", "status": "affected", "versionType": "git" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "lessThan": "b5c94e4d947d15d521e935ff10c5a22a7883dea5", "status": "affected", "versionType": "git" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "lessThan": "df3dff8ab6d79edc942464999d06fbaedf8cdd18", "status": "affected", "versionType": "git" }, { "version": "9b5a29f0acefa3eb1dbe2fa302b393eeff64d933", "status": "affected", "versionType": "git" }, { "version": "4.19.214", "lessThan": "4.19.324", "status": "affected", "versionType": "semver" }, { "version": "5.4.156", "lessThan": "5.4.286", "status": "affected", "versionType": "semver" }, { "version": "5.10.76", "lessThan": "5.10.230", "status": "affected", "versionType": "semver" }, { "version": "5.14.15", "lessThan": "5.15", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/hisilicon/hns3/hnae3.c" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.324", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.286", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.230", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.172", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.117", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.61", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.8", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "4.19.214", "versionEndExcluding": "4.19.324" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.156", "versionEndExcluding": "5.4.286" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.76", "versionEndExcluding": "5.10.230" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.172" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.117" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.11.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14.15" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a0df055775f30850c0da8f7dab40d67c0fd63908" }, { "url": "https://git.kernel.org/stable/c/7ae4e56de7dbd0999578246a536cf52a63f4056d" }, { "url": "https://git.kernel.org/stable/c/590a4b2d4e0b73586e88bce9b8135b593355ec09" }, { "url": "https://git.kernel.org/stable/c/e36482b222e00cc7aeeea772fc0cf2943590bc4d" }, { "url": "https://git.kernel.org/stable/c/76b155e14d9b182ce83d32ada2d0d7219ea8c8dd" }, { "url": "https://git.kernel.org/stable/c/719edd9f3372ce7fb3b157647c6658672946874b" }, { "url": "https://git.kernel.org/stable/c/b5c94e4d947d15d521e935ff10c5a22a7883dea5" }, { "url": "https://git.kernel.org/stable/c/df3dff8ab6d79edc942464999d06fbaedf8cdd18" } ], "title": "net: hns3: fix kernel crash when uninstalling driver", "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-2024-50296", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:14:08.140052Z" } } } ], "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": "2025-10-01T20:17:20.512Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:28:15.254Z" } } ] } }