Vulnerability Description
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
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.14.315, < 4.14.327 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2Patch
- https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933Patch
- https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742Patch
- https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252aPatch
- https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643bPatch
- https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014Patch
- https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7Patch
- https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847Patch
- https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2Patch
- https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933Patch
- https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742Patch
- https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252aPatch
- https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643bPatch
- https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014Patch
- https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7Patch
FAQ
What is CVE-2023-52567?
CVE-2023-52567 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 tha...
How severe is CVE-2023-52567?
CVE-2023-52567 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52567?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.