# CVE-2022-49167: linux: In the Linux kernel, the following vulnerability has been resolved:  btrfs: do not double complete bio on errors duri...

CVE-2022-49167 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49167, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49167
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  btrfs: do not double complete bio on errors during compressed reads  I hit some weird panics while fixing up the error handling from btrfs_lookup_bio_sums().  Turns out the compression path will complete the bio we use if we set up any of the compression bios and then return an error, and then btrfs_submit_data_bio() will also call bio_endio() on the bio.  Fix this by making btrfs_submit_compressed_read() responsible for calling bio_endio() on the bio if there are any errors.  Currently it was only doing it if we created the compression bios, otherwise it was depending on btrfs_submit_data_bio() to do the right thing.  This creates the above problem, so fix up btrfs_submit_compressed_read() to always call bio_endio() in case of an error, and then simply return from btrfs_submit_data_bio() if we had to call btrfs_submit_compressed_read().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.17.3-1 | [DEBIAN-CVE-2022-49167](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49167.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.17.3-1 | [DEBIAN-CVE-2022-49167](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49167.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.17.3-1 | [DEBIAN-CVE-2022-49167](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49167.md) | Feb 26, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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