s390/dasd: protect device queue against concurrent access
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: protect device queue against concurrent access In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses. Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.1 and later | 4.14.332, 4.19.301, 5.4.263, 5.10.203, 5.15.141, 6.1.65, 6.6.4, 6.7 | Patch available | CNA |
- Linux VendorLinux Affected 3.1 and later Fixed in 4.14.332, 4.19.301, 5.4.263, 5.10.203, 5.15.141, 6.1.65, 6.6.4, 6.7 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.1 to before 4.14.332; 4.15 to before 4.19.301; 4.20 to before 5.4.263; 5.5 to before 5.10.203; 5.11 to before 5.15.141; 5.16 to before 6.1.65; 6.2 to before 6.6.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* | 6.7 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* | 6.7 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.1 to before 4.14.332; 4.15 to before 4.19.301; 4.20 to before 5.4.263; 5.5 to before 5.10.203; 5.11 to before 5.15.141; 5.16 to before 6.1.65; 6.2 to before 6.6.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* Versions 6.7 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* Versions 6.7 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.332, 4.19.301, 5.4.263, 5.10.203, 5.15.141, 6.1.65, 6.6.4, 6.7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-52774
- 2026-10-03 Alias added: GHSA-2j3v-48pv-mvcj
References
Patch 8
- https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96f
- https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458
- https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4d
- https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7a
- https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250
- https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0be
- https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240
- https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885
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Sources
- CVE-2023-52774 · CVE Program
- CVE-2023-52774 · NVD
- FIRST EPSS
- GHSA-2j3v-48pv-mvcj · GitHub Advisory Database · CC BY 4.0
- CVE-2023-52774 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences