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CVE-2023-53207

ublk: fail to recover device if queue setup is interrupted

MEDIUM
5.5
CVSS Score
Published: September 15, 2025 at 02:21 PM UTC
Updated: June 17, 2026 at 06:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to recover device if queue setup is interrupted In ublk_ctrl_end_recovery(), if wait_for_completion_interruptible() is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLK_CMD_END_USER_RECOVERY, otherwise kernel oops can be triggered.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.1 ≤ v < 6.1.436.1 ≤ v < 6.4.86.1 ≤ v < 6.56.2 ≤ v < 6.4.86.16.5 rc16.5 rc26.5 rc3c732a852b419fa057b53657e2daaf9433940391c
Vendor states this is fixed in 0c0cbd4ebc375ceebc75c89df04b74f215fab23a (fixed)
Vendor states this is fixed in 84415f934ad4e96f3507fd09b831953d60fb04ec (fixed)
Vendor states this is fixed in b3a1e243a74632f88b22e713f1c7256754017d58 (fixed)
Vendor states this is fixed in 6.1 (unaffected)
Vendor states this is fixed in 6.1.43 (unaffected)
Vendor states this is fixed in 6.4.8 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0c0cbd4ebc375ceebc75c89df04b74f215fab23a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/84415f934ad4e96f3507fd09b831953d60fb04ec
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b3a1e243a74632f88b22e713f1c7256754017d58

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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