{"id":"CVE-2024-43824","title":"PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()\n\nInstead of getting the epc_features from pci_epc_get_features() API, use\nthe…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < 97cee643a825808711cc78475fd61a30824b7a0f","Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < af4ad016abb1632ff7ee598a6037952b495e5b80","Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < 5a5095a8bd1bd349cce1c879e5e44407a34dda8a","Linux 5.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T16:08:51.186456Z"},"published":"2024-08-17","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:35:07.762Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-43824","references":[{"url":"https://git.kernel.org/stable/c/97cee643a825808711cc78475fd61a30824b7a0f"},{"url":"https://git.kernel.org/stable/c/af4ad016abb1632ff7ee598a6037952b495e5b80"},{"url":"https://git.kernel.org/stable/c/5a5095a8bd1bd349cce1c879e5e44407a34dda8a"}],"tags":["cve.org"],"epss":0.0027,"epssPercentile":0.19137,"ingestedAt":"2026-10-21T12:48:53.732Z","slug":"CVE-2024-43824","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()\n\nInstead of getting the epc_features from pci_epc_get_features() API, use\nthe cached pci_epf_test::epc_features value to avoid the NULL check. Since\nthe NULL check is already performed in pci_epf_test_bind(), having one more\ncheck in pci_epf_test_core_init() is redundant and it is not possible to\nhit the NULL pointer dereference.\n\nAlso with commit a01e7214bef9 (\"PCI: endpoint: Remove \"core_init_notifier\"\nflag\"), 'epc_features' got dereferenced without the NULL check, leading to\nthe following false positive Smatch warning:\n\n  drivers/pci/endpoint/functions/pci-epf-test.c:784 pci_epf_test_core_init() error: we previously assumed 'epc_features' could be null (see line 747)\n\nThus, remove the redundant NULL check and also use the epc_features::\n{msix_capable/msi_capable} flags directly to avoid local variables.\n\n[kwilczynski: commit log]\n\n## Affected\n\n- `Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < 97cee643a825808711cc78475fd61a30824b7a0f`\n- `Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < af4ad016abb1632ff7ee598a6037952b495e5b80`\n- `Linux >= 5e50ee27d4a52a817ab152128c48690ec7c5cdf1 < 5a5095a8bd1bd349cce1c879e5e44407a34dda8a`\n- `Linux 5.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}