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CVE-2021-47216: scsi: advansys: Fix kernel pointer leak

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-10 · updated 2026-06-17

Description

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.

Affected products

• Linux kernel: before 4.4.293; from 4.5 before 4.9.291; from 4.10 before 4.14.256; from 4.15 before 4.19.218; from 4.20 before 5.4.162; from 5.5 before 5.10.82 — fixed in 4.14.256, 4.19.218, 4.4.293, 4.9.291, 5.10.82, 5.15.5

How to fix

Upgrade to a fixed version: Linux kernel 4.14.256, 4.19.218, 4.4.293, 4.9.291. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/055eced3edf5b675d12189081303f6285ef26511
• https://git.kernel.org/stable/c/06d7d12efb5c62db9dea15141ae2b322c2719515
• https://git.kernel.org/stable/c/27490ae6a85a70242d80615ca74d0362a820d6a7
• https://git.kernel.org/stable/c/5612287991debe310c914600599bd59511ababfb
• https://git.kernel.org/stable/c/ad19f7046c24f95c674fbea21870479b2b9f5bab
• https://git.kernel.org/stable/c/cc248790bfdcf879e3094fa248c85bf92cdf9dae
• https://git.kernel.org/stable/c/d4996c6eac4c81b8872043e9391563f67f13e406
• https://git.kernel.org/stable/c/f5a0ba4a9b5e70e7b2f767636d26523f9d1ac59d
• https://git.kernel.org/stable/c/055eced3edf5b675d12189081303f6285ef26511
• https://git.kernel.org/stable/c/06d7d12efb5c62db9dea15141ae2b322c2719515
• https://git.kernel.org/stable/c/27490ae6a85a70242d80615ca74d0362a820d6a7
• https://git.kernel.org/stable/c/5612287991debe310c914600599bd59511ababfb

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