CVE-2026-90045
USB: gadget: ffs: fix mm lifetime handling
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
2e4c7553cd6f9c68bb741582dcb614edcbeca70f < 68895e50c2250d9edd6e0a5967bf351221fd88b4 2e4c7553cd6f9c68bb741582dcb614edcbeca70f < aee2fde0f39e2b667084f4d5cc323a5c5543d733 2e4c7553cd6f9c68bb741582dcb614edcbeca70f < 1625827648f4e1595ea6ba5521bc87ee5088b32b 2e4c7553cd6f9c68bb741582dcb614edcbeca70f < f3d31484b3f26d63c09e5569ebfaa1079a17f171 2e4c7553cd6f9c68bb741582dcb614edcbeca70f < 7411de0ce3b45286de1de82526795658ea6eacb0 2e4c7553cd6f9c68bb741582dcb614edcbeca70f < 5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8
Linux / Linux
3.15
References
git.kernel.org: https://git.kernel.org/stable/c/68895e50c2250d9edd6e0a5967bf351221fd88b4 git.kernel.org: https://git.kernel.org/stable/c/aee2fde0f39e2b667084f4d5cc323a5c5543d733 git.kernel.org: https://git.kernel.org/stable/c/1625827648f4e1595ea6ba5521bc87ee5088b32b git.kernel.org: https://git.kernel.org/stable/c/f3d31484b3f26d63c09e5569ebfaa1079a17f171 git.kernel.org: https://git.kernel.org/stable/c/7411de0ce3b45286de1de82526795658ea6eacb0 git.kernel.org: https://git.kernel.org/stable/c/5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8