SB20240531383 - NULL pointer dereference in Linux kernel usb gadget driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531383
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2021-47267)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the usb_assign_descriptors() function in drivers/usb/gadget/config.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/fd24be23abf3e94260be0f00bb42c7e91d495f87
- https://git.kernel.org/stable/c/70cd19cb5bd94bbb5bacfc9c1e4ee0071699a604
- https://git.kernel.org/stable/c/45f9a2fe737dc0a5df270787f2231aee8985cd59
- https://git.kernel.org/stable/c/5ef23506695b01d5d56a13a092a97f2478069d75
- https://git.kernel.org/stable/c/b972eff874637402ddc4a7dd11fb22538a0b6d28
- https://git.kernel.org/stable/c/ca6bc277430d90375452b60b047763a090b7673e
- https://git.kernel.org/stable/c/032e288097a553db5653af552dd8035cd2a0ba96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.237
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.195
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.273
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.44
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.126