{"id":"CVE-2024-58006","summary":"PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()\n\nIn commit 4284c88fff0e (\"PCI: designware-ep: Allow pci_epc_set_bar() update\ninbound map address\") set_bar() was modified to support dynamically\nchanging the backing physical address of a BAR that was already configured.\n\nThis means that set_bar() can be called twice, without ever calling\nclear_bar() (as calling clear_bar() would clear the BAR's PCI address\nassigned by the host).\n\nThis can only be done if the new BAR size/flags does not differ from the\nexisting BAR configuration. Add these missing checks.\n\nIf we allow set_bar() to set e.g. a new BAR size that differs from the\nexisting BAR size, the new address translation range will be smaller than\nthe BAR size already determined by the host, which would mean that a read\npast the new BAR size would pass the iATU untranslated, which could allow\nthe host to read memory not belonging to the new struct pci_epf_bar.\n\nWhile at it, add comments which clarifies the support for dynamically\nchanging the physical address of a BAR. (Which was also missing.)","modified":"2026-04-02T12:25:28.558556Z","published":"2025-02-27T02:12:02.932Z","related":["ALSA-2025:20095","SUSE-SU-2025:01919-1","SUSE-SU-2025:1177-1","SUSE-SU-2025:1178-1","SUSE-SU-2025:1180-1","SUSE-SU-2025:20190-1","SUSE-SU-2025:20192-1","SUSE-SU-2025:20260-1","SUSE-SU-2025:20270-1","USN-7521-2"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/58xxx/CVE-2024-58006.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3229c15d6267de8e704b4085df8a82a5af2d63eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3708acbd5f169ebafe1faa519cb28adc56295546"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5cacfd067060c75088363ed3e19779078be2755"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/58xxx/CVE-2024-58006.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-58006"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4284c88fff0efc4e418abb53d78e02dc4f099d6c"},{"fixed":"b5cacfd067060c75088363ed3e19779078be2755"},{"fixed":"3229c15d6267de8e704b4085df8a82a5af2d63eb"},{"fixed":"3708acbd5f169ebafe1faa519cb28adc56295546"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-58006.json"}}],"schema_version":"1.7.5"}