CVE-2026-64345
Description
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_printer: take kref only for successful open
printer_open() returns -EBUSY when the character device is already
open, but it increments dev->kref regardless of the return value. VFS
does not call ->release() for a failed open, so every rejected second
open permanently leaks one reference.
Move kref_get() into the successful-open branch.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 94ec20d97aa51547965a539f660a1fe79c6929a3, e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 75c0ad13e136961328253742501b4efc3988a587, e8d5f92b8d30bb4ade76494490c3c065e12411b1 < bf20c94fa6aaff945f0ae3a23f3212cd299f28d9, e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 8a5eba992c862b0c94411eecf9b7121e8636db38 … |
| Linux | Linux | — | 5.10, 0 < 5.10, 5.10.261 ≤ 5.10.*, 6.6.145 ≤ 6.6.* … |
References (6)
- https://git.kernel.org/stable/c/94ec20d97aa51547965a539f660a1fe79c6929a3
- https://git.kernel.org/stable/c/75c0ad13e136961328253742501b4efc3988a587
- https://git.kernel.org/stable/c/bf20c94fa6aaff945f0ae3a23f3212cd299f28d9
- https://git.kernel.org/stable/c/8a5eba992c862b0c94411eecf9b7121e8636db38
- https://git.kernel.org/stable/c/7f1f24c367938c5537e2308bf9a965f051d14774
- https://git.kernel.org/stable/c/30adce93d5c4a5a1ec29d9249e3fdfcc391d406b