CVE-2021-47216: scsi: advansys: Fix kernel pointer leak
First published: Wed Apr 10 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: scsi: advansys: Fix kernel pointer leak Pointers should be printed with %p or %px rather than cast to 'unsigned long' and printed with %lx. Change %lx to %p to print the hashed pointer.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <4.4.293 | |
| Linux Kernel | >=4.5<4.9.291 | |
| Linux Kernel | >=4.10<4.14.256 | |
| Linux Kernel | >=4.15<4.19.218 | |
| Linux Kernel | >=4.20<5.4.162 | |
| Linux Kernel | >=5.5<5.10.82 | |
| Linux Kernel | >=5.11<5.15.5 |
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Reference Links
- https://git.kernel.org/stable/c/06d7d12efb5c62db9dea15141ae2b322c2719515
- https://git.kernel.org/stable/c/ad19f7046c24f95c674fbea21870479b2b9f5bab
- https://git.kernel.org/stable/c/5612287991debe310c914600599bd59511ababfb
- https://git.kernel.org/stable/c/f5a0ba4a9b5e70e7b2f767636d26523f9d1ac59d
- https://git.kernel.org/stable/c/cc248790bfdcf879e3094fa248c85bf92cdf9dae
- https://git.kernel.org/stable/c/055eced3edf5b675d12189081303f6285ef26511
- https://git.kernel.org/stable/c/27490ae6a85a70242d80615ca74d0362a820d6a7
- https://git.kernel.org/stable/c/d4996c6eac4c81b8872043e9391563f67f13e406
Frequently Asked Questions
What is the severity of CVE-2021-47216?
CVE-2021-47216 has a moderate severity rating due to its potential impact on kernel pointer leaks.
How do I fix CVE-2021-47216?
To fix CVE-2021-47216, update your Linux kernel to a version higher than 4.4.293, 4.9.291, 4.14.256, 4.19.218, 5.4.162, 5.10.82, or 5.15.5.
What affected systems are at risk for CVE-2021-47216?
CVE-2021-47216 affects various versions of the Linux kernel prior to the patched versions specified.
Are there any known exploits for CVE-2021-47216?
As of now, there are no publicly known exploits associated with CVE-2021-47216.
What is the nature of CVE-2021-47216?
CVE-2021-47216 is a kernel pointer leak vulnerability in the Linux kernel that involves improper pointer handling in SCSI drivers.
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