What’s Vulnerable › Vulnerabilities
CVE-2024-27054: s390/dasd: fix double module refcount decrement
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-05-01 · updated 2026-06-17
Description
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix double module refcount decrement Once the discipline is associated with the device, deleting the device takes care of decrementing the module's refcount. Doing it manually on this error path causes refcount to artificially decrease on each error while it should just stay the same.
Affected products
- Linux kernel: from 4.9 before 5.15.153; from 5.16 before 6.1.83; from 6.2 before 6.6.23; from 6.7 before 6.7.11; from 6.8 before 6.8.2 — fixed in 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2
How to fix
Upgrade to a fixed version: Linux kernel 5.15.153, 6.1.83, 6.6.23, 6.7.11. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/9fe0562179d8fa960afca0eaed6d4ba4122a3cc6
- https://git.kernel.org/stable/c/ad999aa18103fa038787b6a8a55020abcf34df1a
- https://git.kernel.org/stable/c/c3116e62ddeff79cae342147753ce596f01fcf06
- https://git.kernel.org/stable/c/ebc5a3bd79e54f98c885c26f0862a27a02c487c5
- https://git.kernel.org/stable/c/ec09bcab32fc4765e0cc97e1b72cdd067135f37e
- https://git.kernel.org/stable/c/edbdb0d94143db46edd373cc93e433832d29fe19
- https://git.kernel.org/stable/c/fa18aa507ea71d8914b6acb2c94db311c757c650
- https://git.kernel.org/stable/c/ad999aa18103fa038787b6a8a55020abcf34df1a
- https://git.kernel.org/stable/c/c3116e62ddeff79cae342147753ce596f01fcf06
- https://git.kernel.org/stable/c/ebc5a3bd79e54f98c885c26f0862a27a02c487c5
- https://git.kernel.org/stable/c/ec09bcab32fc4765e0cc97e1b72cdd067135f37e
- https://git.kernel.org/stable/c/edbdb0d94143db46edd373cc93e433832d29fe19
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