Bug 2482182 (CVE-2026-46074) - CVE-2026-46074 kernel: spi: ch341: fix memory leaks on probe failures
Summary: CVE-2026-46074 kernel: spi: ch341: fix memory leaks on probe failures
Keywords:
Status: NEW
Alias: CVE-2026-46074
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-27 15:15 UTC by OSIDB Bzimport
Modified: 2026-05-27 17:46 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-27 15:15:10 UTC 
In the Linux kernel, the following vulnerability has been resolved:

spi: ch341: fix memory leaks on probe failures

Make sure to deregister the controller, disable pins, and kill and free
the RX URB on probe failures to mirror disconnect and avoid memory
leaks and use-after-free.

Also add an explicit URB kill on disconnect for symmetry (even if that
is not strictly required as USB core would have stopped it in the
current setup).
Comment 1 Keith Grant 2026-05-27 17:43:43 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052759-CVE-2026-46074-8ff5@gregkh/T
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