Bug 2571624 (CVE-2026-124743) - CVE-2026-124743 busybox: Divide-by-zero and heap over-read in the volume_id HFS+ prober
Summary: CVE-2026-124743 busybox: Divide-by-zero and heap over-read in the volume_id H...
Keywords:
Status: NEW
Alias: CVE-2026-124743
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: 2571626 2571627
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-11 09:54 UTC by OSIDB Bzimport
Modified: 2026-11-11 09:56 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-11-11 09:54:19 UTC 
A flaw was found in BusyBox's volume_id HFS+ prober. A blocksize value of 0 in the volume header is used as a divisor, causing a divide-by-zero (SIGFPE) crash, and the catalog leaf_node_size is never validated, allowing a heap out-of-bounds read. A crafted HFS+ filesystem image on an attached device triggers these issues when probed by blkid, findfs or mount LABEL=/UUID=, causing the probing applet to crash and preventing device resolution.
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