CVE-2024-40967: serial: imx: Introduce timeout when waiting on transmitter empty
First published: Fri Jul 12 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.15.162 | 5.15.162 |
| redhat/kernel | <6.1.96 | 6.1.96 |
| redhat/kernel | <6.6.36 | 6.6.36 |
| redhat/kernel | <6.9.7 | 6.9.7 |
| redhat/kernel | <6.10 | 6.10 |
| Linux Kernel | <5.15.162 | |
| Linux Kernel | >=5.16<6.1.96 | |
| Linux Kernel | >=6.2<6.6.36 | |
| Linux Kernel | >=6.7<6.9.7 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- 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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-40967
- https://nvd.nist.gov/vuln/detail/CVE-2024-40967
- https://launchpad.net/bugs/cve/CVE-2024-40967
- https://security-tracker.debian.org/tracker/CVE-2024-40967
- https://ubuntu.com/security/CVE-2024-40967
- https://git.kernel.org/linus/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2297551
Frequently Asked Questions
What is the severity of CVE-2024-40967?
CVE-2024-40967 is considered to have a moderate severity due to its potential to cause deadlock in the Linux kernel.
How do I fix CVE-2024-40967?
To fix CVE-2024-40967, update your Linux kernel to version 5.15.162, 6.1.96, 6.6.36, or later.
Which Linux distributions are affected by CVE-2024-40967?
CVE-2024-40967 affects various Linux distributions that use vulnerable kernel versions prior to the fixes.
What issues does CVE-2024-40967 address?
CVE-2024-40967 specifically addresses a potential deadlock issue related to waiting for the transmitter to be empty.
Is CVE-2024-40967 present in older kernel versions?
Yes, CVE-2024-40967 is present in kernel versions prior to the administered patches and fixes.
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