Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c35105f375b530bc27e03ea9250b1c26dd4cae86 before 0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 before c37466406f075476c2702ecc01917928af871f3b; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 before 7c15eb344b0d4d3468c9b2a7591ad2b859b29b88; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 before 3729ca9e48d19a03ae049e2bde510e161c2f3720; affected 91918ce88d9fef408bb12c46a27c73d79b604c20 before 316f790ebcf94bdf59f794b7cdea4068dc676d4c; affected ba72baed066f3bfa8b489e4b58f1fcaf51c04f83; affected 6.1.30 before 6.1.93; affected 6.3.4 before 6.4 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.1.93 through 6.1.*; unaffected 6.6.33 through 6.6.*; unaffected 6.8.12 through 6.8.*; unaffected 6.9.3 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49
- https://git.kernel.org/stable/c/c37466406f075476c2702ecc01917928af871f3b
- https://git.kernel.org/stable/c/7c15eb344b0d4d3468c9b2a7591ad2b859b29b88
- https://git.kernel.org/stable/c/3729ca9e48d19a03ae049e2bde510e161c2f3720
- https://git.kernel.org/stable/c/316f790ebcf94bdf59f794b7cdea4068dc676d4c
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49
- https://git.kernel.org/stable/c/c37466406f075476c2702ecc01917928af871f3b
- https://git.kernel.org/stable/c/7c15eb344b0d4d3468c9b2a7591ad2b859b29b88
- https://git.kernel.org/stable/c/3729ca9e48d19a03ae049e2bde510e161c2f3720
- https://git.kernel.org/stable/c/316f790ebcf94bdf59f794b7cdea4068dc676d4c