What’s Vulnerable › Vulnerabilities
CVE-2024-40967: serial: imx: Introduce timeout when waiting on transmitter empty
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-07-12 · updated 2026-06-17
- Weakness: CWE-667
Description
In the Linux kernel, the following vulnerability has been resolved: serial: imx: Introduce timeout when waiting on transmitter empty By waiting at most 1 second for USR2_TXDC to be set, we avoid a potential deadlock. In case of the timeout, there is not much we can do, so we simply ignore the transmitter state and optimistically try to continue.
Affected products
- Linux kernel: before 5.15.162; from 5.16 before 6.1.96; from 6.2 before 6.6.36; from 6.7 before 6.9.7 — fixed in 5.15.162, 6.1.96, 6.6.36, 6.9.7
How to fix
Upgrade to a fixed version: Linux kernel 5.15.162, 6.1.96, 6.6.36, 6.9.7. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/53b2c95547427c358f45515a9f144efee95e3701
- https://git.kernel.org/stable/c/7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7
- https://git.kernel.org/stable/c/7f9e70c68b7ace0141fe3bc94bf7b61296b71916
- https://git.kernel.org/stable/c/982ae3376c4c91590d38dc8a676c10f7df048a44
- https://git.kernel.org/stable/c/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2
- https://git.kernel.org/stable/c/53b2c95547427c358f45515a9f144efee95e3701
- https://git.kernel.org/stable/c/7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7
- https://git.kernel.org/stable/c/7f9e70c68b7ace0141fe3bc94bf7b61296b71916
- https://git.kernel.org/stable/c/982ae3376c4c91590d38dc8a676c10f7df048a44
- https://git.kernel.org/stable/c/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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