Answer in brief
CVE-2026-74313 records a High severity (CVSS 8.8) vulnerability in vduse: hold vduse_lock across IDR lookup in open path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c8a6153b6c59d95c0e091f053f6f180952ade91e <35483c5306e09b3190ff937089d404a78012695c || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <5c1560be8aa6849356455af67518d35c551cbd95 || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <93ed4692f2299a40346025979f40e4a9b7b33af7 || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <d94e2947203aead590fd63f667d316d4475d65af || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2 || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <79e12c891940b0c4c75881b7fd82a8cbb8ac97be || >=c8a6153b6c59d95c0e091f053f6f180952ade91e <e440e077748939839d9f76e24383b76b785f80ce | 35483c5306e09b3190ff937089d404a78012695c, 5c1560be8aa6849356455af67518d35c551cbd95, 93ed4692f2299a40346025979f40e4a9b7b33af7, d94e2947203aead590fd63f667d316d4475d65af, a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2, 79e12c891940b0c4c75881b7fd82a8cbb8ac97be, e440e077748939839d9f76e24383b76b785f80ce |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.