Bug 2334504 (CVE-2024-56597)

Summary: CVE-2024-56597 kernel: jfs: fix shift-out-of-bounds in dbSplit
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-12-27 15:06:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

jfs: fix shift-out-of-bounds in dbSplit

When dmt_budmin is less than zero, it causes errors
in the later stages. Added a check to return an error beforehand
in dbAllocCtl itself.
Comment 1 Avinash Hanwate 2024-12-28 04:57:43 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122701-CVE-2024-56597-d77b@gregkh/T