Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497 asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.9, < 5.15.12 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03Patch
- https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56Patch
- https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03Patch
- https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56Patch
FAQ
What is CVE-2021-47101?
CVE-2021-47101 is a vulnerability with a CVSS score of 7.1 (HIGH). In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asix_mdio_read() asix_read_cmd() may read less than sizeof(smsr) bytes and in this case smsr will be uni...
How severe is CVE-2021-47101?
CVE-2021-47101 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47101?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.