CVE-2023-52615
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMar 18, 2024
First seenMar 18, 2024
How to fix
Update
- linux linux_kernel4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.33 ≤ v < 4.19.307, 4.20 ≤ v < 5.4.269, 5.5 ≤ v < 5.10.210, 5.11 ≤ v < 5.15.149, 5.16 ≤ v < 6.1.76, 6.2 ≤ v < 6.6.15, 6.7 ≤ v < 6.7.3 | 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.76, 6.6.15, 6.7.3 |
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