CVE-2026-90045

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Source

https://cve.org/CVERecord?id=CVE-2026-90045

Import Source

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2026-90045

Downstream

Related

Published

2026-09-16T10:33:42Z

Modified

2026-09-25T18:26:55Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

USB: gadget: ffs: fix mm lifetime handling

Details

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.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90045.json"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

2e4c7553cd6f9c68bb741582dcb614edcbeca70f

Fixed

1625827648f4e1595ea6ba5521bc87ee5088b32b

Fixed

f3d31484b3f26d63c09e5569ebfaa1079a17f171

Fixed

7411de0ce3b45286de1de82526795658ea6eacb0

Fixed

5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-90045.json"

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-90045.json"