ublk: fail to start device if queue setup is interrupted
Published Oct 1, 2025
7.8
HIGHCVSS 3.1
EPSS 0.16%
Description
In ublk_ctrl_start_dev(), if wait_for_completion_interruptible() is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLK_CMD_START_DEV, otherwise kernel oops can be triggered.
Reported by German when working on qemu-storage-deamon which requires single thread ublk daemon.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.0StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.0
- Version 6.1.43StatusunaffectedConstraints<=6.1.*
- Version 6.4.8StatusunaffectedConstraints<=6.4.*
- Version 6.5StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- ≥ 6.0 · < 6.1.43
- ≥ 6.2 · < 6.4.8
- 6.5
- 6.5
- 6.5
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.16% (0.00162) | 4.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.15% (0.00148) | 4.32th | v5 (v2026.06.15) |
| Oct 1, 2025 | 0.02% (0.00017) | 2.87th | v4 (v2025.03.14) |
No CWE recorded.
References (8)
- https://access.redhat.com/security/cve/CVE-2023-53508 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2400709 Issue Tracking
- https://git.kernel.org/stable/c/0d5916c439574b18a0734872daa0022b3d6105ad Patch
- https://git.kernel.org/stable/c/53e7d08f6d6e214c40db1f51291bb2975c789dc2 Patch
- https://git.kernel.org/stable/c/6ab3e7d424cd413d7a5e976c8a30b4ffa84a65dd Patch
- https://lore.kernel.org/linux-cve-announce/2025100129-CVE-2023-53508-20d7@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2023-53508
- https://www.cve.org/CVERecord?id=CVE-2023-53508
Change history (0)
No recorded changes yet.