Bug 2348533 (CVE-2024-58016)

Summary: CVE-2024-58016 kernel: safesetid: check size of policy writes
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-27 03:02:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

safesetid: check size of policy writes

syzbot attempts to write a buffer with a large size to a sysfs entry
with writes handled by handle_policy_update(), triggering a warning
in kmalloc.

Check the size specified for write buffers before allocating.

[PM: subject tweak]
Comment 1 Michal Findra 2025-02-27 15:54:37 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022657-CVE-2024-58016-115b@gregkh/T