CVE-2026-74313vduse: hold vduse_lock across IDR lookup in open path
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: vduse: hold vduse_lock across IDR lookup in open path vduse_dev_open() looks up struct vduse_dev through the IDR and then acquires dev->lock only after vduse_lock has been dropped. This leaves a window where a concurrent VDUSE_DESTROY_DEV can remove the same object from the IDR and free it before the open path locks the device, leading to a use-after-free. Close this race by keeping vduse_lock held until dev->lock has been acquired in the open path, matching the lock ordering already used by the destroy path.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- 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 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c8a6153b6c59d95c0e091f053f6f180952ade91e before 35483c5306e09b3190ff937089d404a78012695c; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 5c1560be8aa6849356455af67518d35c551cbd95; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 93ed4692f2299a40346025979f40e4a9b7b33af7; from c8a6153b6c59d95c0e091f053f6f180952ade91e before d94e2947203aead590fd63f667d316d4475d65af; from c8a6153b6c59d95c0e091f053f6f180952ade91e before a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2; from c8a6153b6c59d95c0e091f053f6f180952ade91e before 79e12c891940b0c4c75881b7fd82a8cbb8ac97be; from c8a6153b6c59d95c0e091f053f6f180952ade91e before e440e077748939839d9f76e24383b76b785f80ce | CNA record |
References
- https://git.kernel.org/stable/c/35483c5306e09b3190ff937089d404a78012695c
- https://git.kernel.org/stable/c/5c1560be8aa6849356455af67518d35c551cbd95
- https://git.kernel.org/stable/c/93ed4692f2299a40346025979f40e4a9b7b33af7
- https://git.kernel.org/stable/c/d94e2947203aead590fd63f667d316d4475d65af
- https://git.kernel.org/stable/c/a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2
- https://git.kernel.org/stable/c/79e12c891940b0c4c75881b7fd82a8cbb8ac97be
- https://git.kernel.org/stable/c/e440e077748939839d9f76e24383b76b785f80ce
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.