CVE-2024-38575wifi: brcmfmac: pcie: handle randbuf allocation failure
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: wifi: brcmfmac: pcie: handle randbuf allocation failure The kzalloc() in brcmf_pcie_download_fw_nvram() will return null if the physical memory has run out. As a result, if we use get_random_bytes() to generate random bytes in the randbuf, the null pointer dereference bug will happen. In order to prevent allocation failure, this patch adds a separate function using buffer on kernel stack to generate random bytes in the randbuf, which could prevent the kernel stack from overflow.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 23 months later
· 23 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 |
|---|---|---|---|
| NVDNVD · Analyzed | 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)
- 0.22% · top 87% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected c35105f375b530bc27e03ea9250b1c26dd4cae86 – < 0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49
- affected 91918ce88d9fef408bb12c46a27c73d79b604c20 – < c37466406f075476c2702ecc01917928af871f3b
- affected 91918ce88d9fef408bb12c46a27c73d79b604c20 – < 7c15eb344b0d4d3468c9b2a7591ad2b859b29b88
- affected 91918ce88d9fef408bb12c46a27c73d79b604c20 – < 3729ca9e48d19a03ae049e2bde510e161c2f3720
- affected 91918ce88d9fef408bb12c46a27c73d79b604c20 – < 316f790ebcf94bdf59f794b7cdea4068dc676d4c
- affected ba72baed066f3bfa8b489e4b58f1fcaf51c04f83
- affected 6.1.30 – < 6.1.93
- affected 6.3.4 – < 6.4
- affected 6.4
- unaffected < 6.4
- unaffected 6.1.93 – ≤ 6.1.*
- unaffected 6.6.33 – ≤ 6.6.*
- unaffected 6.8.12 – ≤ 6.8.*
- unaffected 6.9.3 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References5
- https://git.kernel.org/stable/c/0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/c37466406f075476c2702ecc01917928af871f3b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/7c15eb344b0d4d3468c9b2a7591ad2b859b29b88 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3729ca9e48d19a03ae049e2bde510e161c2f3720 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/316f790ebcf94bdf59f794b7cdea4068dc676d4c (opens in a new tab)x_transferred
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-2024-37438 (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-2024-38575)Record last updated .