CVE-2024-35987
What it is
In the Linux kernel, the following vulnerability has been resolved: riscv: Fix loading 64-bit NOMMU kernels past the start of RAM commit 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") added logic to allow using RAM below the kernel load address. However, this does not work for NOMMU, where PAGE_OFFSET is fixed to the kernel load address. Since that range of memory corresponds to PFNs below ARCH_PFN_OFFSET, mm initialization runs off the beginning of mem_map and corrupts adjacent kernel memory. Fix this by restoring the previous behavior for NOMMU kernels.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 8.4 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 6.6.30
- Linux Kernel < 6.8.9
- Linux Kernel 6.9
Attack profile CVSS 3.1 · 8.4
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-35987.md and follow it. Check whether this project is affected by CVE-2024-35987. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
- https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
- https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
- https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
- https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
- https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
References
- https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
- https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
- https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d
- https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f
- https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694
- https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d