{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2024-50296", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50296", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-11-19T01:30:43.318Z", "updatedAt": "2026-05-23T15:55:00.827Z", "importedAt": "2026-10-24T01:57:20.494Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "net: hns3: fix kernel crash when uninstalling driver", "summary": "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": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "b06ad258e01389ca3ff13bc180f3fcd6a608f1cd", "status": "affected", "versionType": "git", "lessThan": "a0df055775f30850c0da8f7dab40d67c0fd63908" }, { "version": "c4b64011e458aa2b246cd4e42012cfd83d2d9a5c", "status": "affected", "versionType": "git", "lessThan": "7ae4e56de7dbd0999578246a536cf52a63f4056d" }, { "version": "d36b15e3e7b5937cb1f6ac590a85facc3a320642", "status": "affected", "versionType": "git", "lessThan": "590a4b2d4e0b73586e88bce9b8135b593355ec09" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "status": "affected", "versionType": "git", "lessThan": "e36482b222e00cc7aeeea772fc0cf2943590bc4d" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "status": "affected", "versionType": "git", "lessThan": "76b155e14d9b182ce83d32ada2d0d7219ea8c8dd" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "status": "affected", "versionType": "git", "lessThan": "719edd9f3372ce7fb3b157647c6658672946874b" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "status": "affected", "versionType": "git", "lessThan": "b5c94e4d947d15d521e935ff10c5a22a7883dea5" }, { "version": "0dd8a25f355b4df2d41c08df1716340854c7d4c5", "status": "affected", "versionType": "git", "lessThan": "df3dff8ab6d79edc942464999d06fbaedf8cdd18" }, { "version": "9b5a29f0acefa3eb1dbe2fa302b393eeff64d933", "status": "affected", "versionType": "git" }, { "version": "4.19.214", "status": "affected", "versionType": "semver", "lessThan": "4.19.324" }, { "version": "5.4.156", "status": "affected", "versionType": "semver", "lessThan": "5.4.286" }, { "version": "5.10.76", "status": "affected", "versionType": "semver", "lessThan": "5.10.230" }, { "version": "5.14.15", "status": "affected", "versionType": "semver", "lessThan": "5.15" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.15" }, { "version": "4.19.324", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.286", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.230", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.172", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.117", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.61", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.11.8", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.11.*" }, { "version": "6.12", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }