CVE-2026-90045USB: gadget: ffs: fix mm lifetime handling
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2e4c7553cd6f9c68bb741582dcb614edcbeca70f before 1625827648f4e1595ea6ba5521bc87ee5088b32b; from 2e4c7553cd6f9c68bb741582dcb614edcbeca70f before f3d31484b3f26d63c09e5569ebfaa1079a17f171; from 2e4c7553cd6f9c68bb741582dcb614edcbeca70f before 7411de0ce3b45286de1de82526795658ea6eacb0; from 2e4c7553cd6f9c68bb741582dcb614edcbeca70f before 5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8 | CNA record |
References
- https://git.kernel.org/stable/c/1625827648f4e1595ea6ba5521bc87ee5088b32b
- https://git.kernel.org/stable/c/f3d31484b3f26d63c09e5569ebfaa1079a17f171
- https://git.kernel.org/stable/c/7411de0ce3b45286de1de82526795658ea6eacb0
- https://git.kernel.org/stable/c/5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.