CVE-2026-64345
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-07-25
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Affected Software (25)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 94ec20d97aa51547965a539f660a1fe79c6929a3 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < a12d81a9cc2a012a24ecb7f9ba076b9f7c179bd3 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 75c0ad13e136961328253742501b4efc3988a587 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < bf20c94fa6aaff945f0ae3a23f3212cd299f28d9 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 8a5eba992c862b0c94411eecf9b7121e8636db38 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 7f1f24c367938c5537e2308bf9a965f051d14774 |
| Linux | Linux | e8d5f92b8d30bb4ade76494490c3c065e12411b1 < 30adce93d5c4a5a1ec29d9249e3fdfcc391d406b |
| Linux | Linux | 25c95c6bd4dc50a3c20de0fa7f450ea02b2320fc |
| Linux | Linux | 4a47581cf010dc351d8069978080fdb000c0776d |
| Linux | Linux | d9fe88b2a38dc700bf5bd3a09c7cd11bbc248367 |
| Linux | Linux | cedb0187b8ba929c3f76f28e6bc25804d65f8a54 |
| Linux | Linux | e9e791f5c39ab30e374a3b1a9c25ca7ff24988f3 |
| Linux | Linux | 34f026263889e2827e04acdc3a0eb9ecbd191ef0 |
| Linux | Linux | 5f845e5d18d151230476cf90aa46449f69ba2ef1 |
| Linux | Linux | 4.4.241 < 4.5 |
| Linux | Linux | 4.9.241 < 4.10 |
| Linux | Linux | 4.14.203 < 4.15 |
| Linux | Linux | 4.19.154 < 4.20 |
| Linux | Linux | 5.4.73 < 5.5 |
| Linux | Linux | 5.8.17 < 5.9 |
| Linux | Linux | 5.9.2 < 5.10 |
| Linux | Linux | 5.10 |
| linux | linux_kernel | 4.4.241 – 4.5 |
| linux | linux_kernel | 7.2 |
| linux | linux_kernel | 7.2 |