serial: 8250_port: Check IRQ data before use
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: serial: 8250_port: Check IRQ data before use In case the leaf driver wants to use IRQ polling (irq = 0) and IIR register shows that an interrupt happened in the 8250 hardware the IRQ data can be NULL. In such a case we need to skip the wake event as we came to this path from the timer interrupt and quite likely system is already awake. Without this fix we have got an Oops: serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A ... BUG: kernel NULL pointer dereference, address: 0000000000000010 RIP: 0010:serial8250_handle_irq+0x7c/0x240 Call Trace: ? serial8250_handle_irq+0x7c/0x240 ? __pfx_serial8250_timeout+0x10/0x10
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 | 4.14.315 to before 4.14.327; 4.19.283 to before 4.19.296; 5.4.243 to before 5.4.258; 5.10.180 to before 5.10.198; 5.15.111 to before 5.15.134; 6.1.28 to before 6.1.56; 6.2.15 to before 6.3; 6.3.2 to before 6.4 | 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.3, 6.4 | Patch available | CNA |
| Linux | Linux | 6.4 and later | 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.5.6, 6.6 | Patch available | CNA |
- Linux VendorLinux Affected 4.14.315 to before 4.14.327; 4.19.283 to before 4.19.296; 5.4.243 to before 5.4.258; 5.10.180 to before 5.10.198; 5.15.111 to before 5.15.134; 6.1.28 to before 6.1.56; 6.2.15 to before 6.3; 6.3.2 to before 6.4 Fixed in 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.3, 6.4 Patch available CNA
- Linux VendorLinux Affected 6.4 and later Fixed in 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.5.6, 6.6 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.14.315 to before 4.14.327; 4.19.283 to before 4.19.296; 5.4.243 to before 5.4.258; 5.10.180 to before 5.10.198; 5.15.111 to before 5.15.134; 6.1.28 to before 6.1.56; 6.4 to before 6.5.6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* | 6.6 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* | 6.6 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* | 6.6 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.14.315 to before 4.14.327; 4.19.283 to before 4.19.296; 5.4.243 to before 5.4.258; 5.10.180 to before 5.10.198; 5.15.111 to before 5.15.134; 6.1.28 to before 6.1.56; 6.4 to before 6.5.6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* Versions 6.6 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* Versions 6.6 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* Versions 6.6 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.3, 6.4
- Fix · CNA Linux (Linux) Fixed in 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.5.6, 6.6
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-2023-52567
- 2026-10-03 Alias added: GHSA-68m6-x9cq-fjwx
References
Patch 8
- https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847
- https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252a
- https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742
- https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014
- https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2
- https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7
- https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933
- https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643b
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Sources
- CVE-2023-52567 · CVE Program
- CVE-2023-52567 · NVD
- FIRST EPSS
- GHSA-68m6-x9cq-fjwx · GitHub Advisory Database · CC BY 4.0
- CVE-2023-52567 · 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