CVE catalog
CVE-2023-54227
linux: CVE-2023-54227
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.51% · Oct 25, 2026
In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nr_hw_queues Although we don't need to realloc set->tags[] when shrink nr_hw_queues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe null_blk nr_devices=0 submit_queues=8 3. mkdir /mnt/nullb/nullb0 4. echo 1 > /mnt/nullb/nullb0/power 5. echo 4 > /mnt/nullb/nullb0/submit_queues 6. rmdir /mnt/nullb/nullb0 In step 4, will alloc 9 tags (8 submit queues and 1 poll queue), then in step 5, new_nr_hw_queues = 5 (4 submit queues and 1 poll queue). At last in step 6, only these 5 tags are freed, the other 4 tags leaked.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | linux | sid | 7.2.12-1 | fixed |
| Debian | linux | forky | 7.2.12-1 | fixed |
| Debian | linux | trixie | 6.12.107-1 | fixed |
| Debian | linux | trixie-security | 6.12.113-1 | fixed |
| Debian | linux | bookworm | 6.1.176-1 | vulnerable |
| Debian | linux | bookworm-security | 6.1.190-1 | fixed |
| Linux | Kernel | Not reported | 6.1.189 | fixed |
| Linux | Kernel | Not reported | 6.5.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | linux | source | sid | 6.5.6-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | forky | 6.5.6-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | trixie | 6.5.6-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | bookworm | 6.1.190-1 | not yet assigned | Not reported | Not reported |
| Linux | Kernel | Linux | Not reported | 6.1.189 | Not reported | CVE-2023-54227 | Not reported |
| Linux | Kernel | Linux | Not reported | 6.5.5 | Not reported | CVE-2023-54227 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2023-54227]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-54227]
- [https://security-tracker.debian.org/tracker/CVE-2023-54227]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54227.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2941.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]