CVE-2024-58006: Linux kernel · PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.6 Critical.
Data as of 30 Oct 2026, 13:34 UTC
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 9.6 |
|---|
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 27 Feb 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar() In commit 4284c88fff0e ("PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address") set_bar() was modified to support dynamically changing the backing physical address of a BAR that was already configured. This means that set_bar() can be called twice, without ever calling clear_bar() (as calling clear_bar() would clear the BAR's PCI address assigned by the host). This can only be done if the new BAR size/flags does not differ from the existing BAR configuration. Add these missing checks. If we allow set_bar() to set e.g. a new BAR size that differs from the existing BAR size, the new address translation range will be smaller than the BAR size already determined by the host, which would mean that a read past the new BAR size would pass the iATU untranslated, which could allow the host to read memory not belonging to the new struct pci_epf_bar. While at it, add comments which clarifies the support for dynamically changing the physical address of a BAR. (Which was also missing.)
References
- git.kernel.org/stable/c/8dbc2d9e6b8612b9d5f41c0ea875e86183ff9617 (opens in a new tab)
- git.kernel.org/stable/c/01aaa7935af3050fd1e1e7de50001247c75baeab (opens in a new tab)
- git.kernel.org/stable/c/b5cacfd067060c75088363ed3e19779078be2755 (opens in a new tab)
- git.kernel.org/stable/c/3229c15d6267de8e704b4085df8a82a5af2d63eb (opens in a new tab)
- git.kernel.org/stable/c/3708acbd5f169ebafe1faa519cb28adc56295546 (opens in a new tab)