Bug 2360922 (CVE-2025-39778)

Summary: CVE-2025-39778 kernel: objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2025-04-18 08:01:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()

The csts_state_names[] array only has six sparse entries, but the
iteration code in nvmet_ctrl_state_show() iterates seven, resulting in a
potential out-of-bounds stack read.  Fix that.

Fixes the following warning with an UBSAN kernel:

  vmlinux.o: warning: objtool: .text.nvmet_ctrl_state_show: unexpected end of section
Comment 1 Avinash Hanwate 2025-04-18 13:56:43 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041821-CVE-2025-39778-70fe@gregkh/T
Comment 3 rixydaa 2025-08-11 18:17:47 UTC Comment hidden (spam)