CVE-2024-58006PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
- 9.6CriticalCVSS base score
- 0.31%Exploitation in 30 daysEPSS · top 76% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.)
Timeline
ID reserved
By Linux
Published
- 20 months later
· 20 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.6 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.31% · top 76% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.6.
Affected products
- affected 4284c88fff0efc4e418abb53d78e02dc4f099d6c – < 8dbc2d9e6b8612b9d5f41c0ea875e86183ff9617
- affected 4284c88fff0efc4e418abb53d78e02dc4f099d6c – < 01aaa7935af3050fd1e1e7de50001247c75baeab
- affected 4284c88fff0efc4e418abb53d78e02dc4f099d6c – < b5cacfd067060c75088363ed3e19779078be2755
- affected 4284c88fff0efc4e418abb53d78e02dc4f099d6c – < 3229c15d6267de8e704b4085df8a82a5af2d63eb
- affected 4284c88fff0efc4e418abb53d78e02dc4f099d6c – < 3708acbd5f169ebafe1faa519cb28adc56295546
- affected 6.0
- unaffected < 6.0
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.14 – ≤ 6.12.*
- unaffected 6.13.3 – ≤ 6.13.*
- unaffected 6.14 – ≤ *
References
References5
- https://git.kernel.org/stable/c/8dbc2d9e6b8612b9d5f41c0ea875e86183ff9617 (opens in a new tab)
- https://git.kernel.org/stable/c/01aaa7935af3050fd1e1e7de50001247c75baeab (opens in a new tab)
- https://git.kernel.org/stable/c/b5cacfd067060c75088363ed3e19779078be2755 (opens in a new tab)
- https://git.kernel.org/stable/c/3229c15d6267de8e704b4085df8a82a5af2d63eb (opens in a new tab)
- https://git.kernel.org/stable/c/3708acbd5f169ebafe1faa519cb28adc56295546 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-5196 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-58006)Record last updated .