CVE-2026-64345

CVE CVE-2026-64345EUVD EUVD-2026-48889Published 2026-07-25T08:50:07.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5.8.17 <5.9; 5.10; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <8a5eba992c862b0c94411eecf9b7121e8636db38; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <94ec20d97aa51547965a539f660a1fe79c6929a3; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <bf20c94fa6aaff945f0ae3a23f3212cd299f28d9; 4.19.154 <4.20; patch: 0; 4.9.241 <4.10; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <75c0ad13e136961328253742501b4efc3988a587; patch: 7.2-rc3; patch: 6.18.39; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <30adce93d5c4a5a1ec29d9249e3fdfcc391d406b; 5.9.2 <5.10; patch: 7.1.4; e8d5f92b8d30bb4ade76494490c3c065e12411b1 <7f1f24c367938c5537e2308bf9a965f051d14774; patch: 6.6.145; 4a47581cf010dc351d8069978080fdb000c0776d; d9fe88b2a38dc700bf5bd3a09c7cd11bbc248367; 5.4.73 <5.5; 34f026263889e2827e04acdc3a0eb9ecbd191ef0; e9e791f5c39ab30e374a3b1a9c25ca7ff24988f3; 4.4.241 <4.5; 25c95c6bd4dc50a3c20de0fa7f450ea02b2320fc; 4.14.203 <4.15; cedb0187b8ba929c3f76f28e6bc25804d65f8a54; patch: 6.12.96; patch: 5.10.261; 5f845e5d18d151230476cf90aa46449f69ba2ef1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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