CVE-2026-90020USB: gadget: fix NULL pointer dereference in gadget_dev_ioctl()
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: USB: gadget: fix NULL pointer dereference in gadget_dev_ioctl() gadget_dev_ioctl() reads dev->gadget before acquiring dev->lock, but dev->state is checked after acquiring the lock. Therefore a concurrent bind can change the device state between these operations, which can leave ioctl with a stale NULL gadget pointer and causing a NULL pointer dereference at gadget->ops->ioctl. Read dev->gadget while holding dev->lock so that the gadget pointer and device state are sampled consistently.
- 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 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8be30959be31b4205e3bdd2e2a6221f3a2ee7ea1; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e8219accce2f6d3502ed71f5b5e854ecf27249a6; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 87cbf9410b12f5c2d659bb01e8ecf6517cb9f28c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 162178ca83c3de986900385a0477eb539f8e1a7e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ebd916fdfefaacbc0e577f7037ec96b31a105e5f; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c29a83c1ff3f06d5751f6d365b606c9f81ccc4cb; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 64ec019bf9a8b12f53b9f2777d65aadb730b5a84; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before dd0eed9e165b1a6292f49e622e3dd0b7d99b106d | CNA record |
References
- https://git.kernel.org/stable/c/8be30959be31b4205e3bdd2e2a6221f3a2ee7ea1
- https://git.kernel.org/stable/c/e8219accce2f6d3502ed71f5b5e854ecf27249a6
- https://git.kernel.org/stable/c/87cbf9410b12f5c2d659bb01e8ecf6517cb9f28c
- https://git.kernel.org/stable/c/162178ca83c3de986900385a0477eb539f8e1a7e
- https://git.kernel.org/stable/c/ebd916fdfefaacbc0e577f7037ec96b31a105e5f
- https://git.kernel.org/stable/c/c29a83c1ff3f06d5751f6d365b606c9f81ccc4cb
- https://git.kernel.org/stable/c/64ec019bf9a8b12f53b9f2777d65aadb730b5a84
- https://git.kernel.org/stable/c/dd0eed9e165b1a6292f49e622e3dd0b7d99b106d
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.