CVE-2024-27406
What it is
In the Linux kernel, the following vulnerability has been resolved: lib/Kconfig.debug: TEST_IOV_ITER depends on MMU Trying to run the iov_iter unit test on a nommu system such as the qemu kc705-nommu emulation results in a crash. KTAP version 1 # Subtest: iov_iter # module: kunit_iov_iter 1..9 BUG: failure at mm/nommu.c:318/vmap()! Kernel panic - not syncing: BUG! The test calls vmap() directly, but vmap() is not supported on nommu systems, causing the crash. TEST_IOV_ITER therefore needs to depend on MMU.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of 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: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 6.6.19
- Linux Kernel < 6.7.7
- Linux Kernel 6.8
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2024-27406.md and follow it. Check whether this project is affected by CVE-2024-27406. 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/1eb1e984379e2da04361763f66eec90dd75cf63e
- https://git.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8
- https://git.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3
- https://git.kernel.org/stable/c/1eb1e984379e2da04361763f66eec90dd75cf63e
- https://git.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8
- https://git.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3
References
- https://git.kernel.org/stable/c/1eb1e984379e2da04361763f66eec90dd75cf63e
- https://git.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8
- https://git.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3
- https://git.kernel.org/stable/c/1eb1e984379e2da04361763f66eec90dd75cf63e
- https://git.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8
- https://git.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3