vulnerability
Amazon Linux AMI 2: CVE-2022-49308: Security patch for kernel (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Feb 26, 2025 | May 21, 2025 | May 22, 2025 |
Description
In the Linux kernel, the following vulnerability has been resolved:
extcon: Modify extcon device to be created after driver data is set
Currently, someone can invoke the sysfs such as state_show()
intermittently before dev_set_drvdata() is done.
And it can be a cause of kernel Oops because of edev is Null at that time.
So modified the driver registration to after setting drviver data.
- Oops's backtrace.
Backtrace:
[] (state_show) from [] (dev_attr_show)
[] (dev_attr_show) from [] (sysfs_kf_seq_show)
[] (sysfs_kf_seq_show) from [] (kernfs_seq_show)
[] (kernfs_seq_show) from [] (seq_read)
[] (seq_read) from [] (kernfs_fop_read)
[] (kernfs_fop_read) from [] (__vfs_read)
[] (__vfs_read) from [] (vfs_read)
[] (vfs_read) from [] (ksys_read)
[] (ksys_read) from [] (sys_read)
[] (sys_read) from [] (__sys_trace_return)
Solution(s)
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.