Bug 2322301 (CVE-2024-50080) - CVE-2024-50080 kernel: ublk: don't allow user copy for unprivileged device
Summary: CVE-2024-50080 kernel: ublk: don't allow user copy for unprivileged device
Keywords:
Status: NEW
Alias: CVE-2024-50080
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2322368
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-29 01:01 UTC by OSIDB Bzimport
Modified: 2024-10-29 08:13 UTC (History)
4 users (show)

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Description OSIDB Bzimport 2024-10-29 01:01:08 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ublk: don't allow user copy for unprivileged device

UBLK_F_USER_COPY requires userspace to call write() on ublk char
device for filling request buffer, and unprivileged device can't
be trusted.

So don't allow user copy for unprivileged device.
Comment 1 Michal Findra 2024-10-29 07:59:54 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102936-CVE-2024-50080-72ba@gregkh/T
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