Bug 2312061 (CVE-2024-46673)

Summary: CVE-2024-46673 kernel: scsi: aacraid: Fix double-free on probe failure
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, rhel-process-autobot, vkumar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel. Specifically, a double-free vulnerability exists in the `aacraid` SCSI driver. This occurs during probe failure when the `aac_init_adapter()` function frees memory for `aac_dev::queues` but fails to clear the pointer, leading `aac_probe_one()` to attempt a second free of the same memory. A local attacker could exploit this memory corruption to cause a denial of service (DoS) or potentially achieve arbitrary code execution.
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Bug Depends On: 2312174    
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Description OSIDB Bzimport 2024-09-13 06:20:34 UTC 
In the Linux kernel, the following vulnerability has been resolved:

scsi: aacraid: Fix double-free on probe failure

aac_probe_one() calls hardware-specific init functions through the
aac_driver_ident::init pointer, all of which eventually call down to
aac_init_adapter().

If aac_init_adapter() fails after allocating memory for aac_dev::queues,
it frees the memory but does not clear that member.

After the hardware-specific init function returns an error,
aac_probe_one() goes down an error path that frees the memory pointed to
by aac_dev::queues, resulting.in a double-free.
Comment 1 Michal Findra 2024-09-13 11:19:53 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091333-CVE-2024-46673-c49c@gregkh/T
Comment 3 errata-xmlrpc 2025-05-13 08:28:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966