CVE-2026-90045 - USB: gadget: ffs: fix mm lifetime handling

CVE-2026-90045 - USB: gadget: ffs: fix mm lifetime handling

https://cvefeed.io/rssfeed/latest.atom / Wed, 09/16/2026 - 13:32
CVE ID :CVE-2026-90045
Published : Sept. 16, 2026, 10:33 a.m. | 34 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved: USB: gadget: ffs: fix mm lifetime handling io_data stores a pointer to the submitting task's mm_struct, but does not currently hold a reference to it while async requests are pending. This can result in a use-after-free if the task exits before completion handling finishes. Take a reference with mmgrab() when queuing the read request and release it with mmdrop() on request completion.
Severity: 0.0 | NA
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