CVE-2026-98772USB: serial: fix port tear down use-after-free
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: serial: fix port tear down use-after-free Some drivers for multiport devices access port driver data from completion handlers of shared URBs submitted at attach() or first open() and stopped at disconnect() or last close(), respectively. A simple NULL check before accessing the driver data makes sure that a port state container has at least been allocated, but a completion handler can still race with port tear down. Reorder the disconnect handling so that ports are not deregistered (and their driver data freed) until after all ports have been hung up and the driver disconnect() callback has run so that all I/O has been stopped.
- CVSS
- Not yet scored
- 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
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2d93148ab6988cad872e65d694c95e8944e1b626 before 60cc9379c3e650d1ebfba4de63f1242537a62a32; from 2d93148ab6988cad872e65d694c95e8944e1b626 before 5e8980a81af195c49084be5b4c031085b56c7443; from 2d93148ab6988cad872e65d694c95e8944e1b626 before e80ee74206f260eb1282e7d1339ff146a4a410d0; from 2d93148ab6988cad872e65d694c95e8944e1b626 before 33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b | CNA record |
References
- https://git.kernel.org/stable/c/60cc9379c3e650d1ebfba4de63f1242537a62a32
- https://git.kernel.org/stable/c/5e8980a81af195c49084be5b4c031085b56c7443
- https://git.kernel.org/stable/c/e80ee74206f260eb1282e7d1339ff146a4a410d0
- https://git.kernel.org/stable/c/33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b
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.