# CVE-2021-47176: linux: In the Linux kernel, the following vulnerability has been resolved:  s390/dasd: add missing discipline function  Fix...

CVE-2021-47176 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47176, released March 25, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-47176
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 25, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  s390/dasd: add missing discipline function  Fix crash with illegal operation exception in dasd_device_tasklet. Commit b72949328869 ("s390/dasd: Prepare for additional path event handling") renamed the verify_path function for ECKD but not for FBA and DIAG. This leads to a panic when the path verification function is called for a FBA or DIAG device.  Fix by defining a wrapper function for dasd_generic_verify_path().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.14.6-1 | [DEBIAN-CVE-2021-47176](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47176.md) | Mar 25, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.14.6-1 | [DEBIAN-CVE-2021-47176](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47176.md) | Mar 25, 2024 |
| Linux | linux Debian 14 | 5.14.6-1 | [DEBIAN-CVE-2021-47176](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47176.md) | Mar 25, 2024 |

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