What’s Vulnerable › Vulnerabilities

CVE-2022-50384: staging: vme_user: Fix possible UAF in tsi148_dma_list_add

• Severity: high (CVSS 7.8 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: 2025-09-18 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: staging: vme_user: Fix possible UAF in tsi148_dma_list_add Smatch report warning as follows: drivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn: '&entry->list' not removed from list In tsi148_dma_list_add(), the error path "goto err_dma" will not remove entry->list from list->entries, but entry will be freed, then list traversal may cause UAF. Fix by removeing it from list->entries before free().

Affected products

• Linux kernel: from 4.2 before 4.9.337; from 4.10 before 4.14.303; from 4.15 before 4.19.270; from 4.20 before 5.4.229; from 5.5 before 5.10.163; from 5.11 before 5.15.86 — fixed in 4.14.303, 4.19.270, 4.9.337, 5.10.163, 5.15.86, 5.4.229

How to fix

Upgrade to a fixed version: Linux kernel 4.14.303, 4.19.270, 4.9.337, 5.10.163. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1f5661388f43df3ac106ce93e67d8d22b16a78ff
• https://git.kernel.org/stable/c/357057ee55d3c99a5de5abe8150f7bca04f8e53b
• https://git.kernel.org/stable/c/51c0ad3b7c5b01f9314758335a13f157b05fa56d
• https://git.kernel.org/stable/c/5cc4eea715a3fcf4e516662f736dfee63979465f
• https://git.kernel.org/stable/c/5d2b286eb034af114f67d9967fc3fbc1829bb712
• https://git.kernel.org/stable/c/85db68fc901da52314ded80aace99f8b684c7815
• https://git.kernel.org/stable/c/a45ba33d398a821147d7e5f16ead7eb125e331e2
• https://git.kernel.org/stable/c/cf138759a7e92c75cfc1b7ba705e4108fe330edf
• https://git.kernel.org/stable/c/e6b0adff99edf246ba1f8d464530a0438cb1cbda

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