Bug 2348579 (CVE-2025-21748) - CVE-2025-21748 kernel: ksmbd: fix integer overflows on 32 bit systems
Summary: CVE-2025-21748 kernel: ksmbd: fix integer overflows on 32 bit systems
Keywords:
Status: NEW
Alias: CVE-2025-21748
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:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-27 03:03 UTC by OSIDB Bzimport
Modified: 2025-02-27 18:42 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-27 03:03:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix integer overflows on 32 bit systems

On 32bit systems the addition operations in ipc_msg_alloc() can
potentially overflow leading to memory corruption.
Add bounds checking using KSMBD_IPC_MAX_PAYLOAD to avoid overflow.
Comment 1 Michal Findra 2025-02-27 18:20:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022601-CVE-2025-21748-c980@gregkh/T
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