Bug 2516370 (CVE-2026-72244) - CVE-2026-72244 kernel: gpu/buddy: bail out of try_harder when alignment cannot be honoured
Summary: CVE-2026-72244 kernel: gpu/buddy: bail out of try_harder when alignment canno...
Keywords:
Status: NEW
Alias: CVE-2026-72244
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:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:08 UTC by OSIDB Bzimport
Modified: 2026-09-03 14:11 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-15 06:08:58 UTC
In the Linux kernel, the following vulnerability has been resolved:

gpu/buddy: bail out of try_harder when alignment cannot be honoured

The try_harder contiguous fallback could return a range whose start
offset did not match the caller's min_block_size. When a candidate's
start is misaligned, realign it: free the misaligned run and reallocate
exactly @size at the next lower min_block_size boundary. This keeps the
returned size unchanged with no surplus to trim, and rejects the request
only when no aligned candidate fits.

v2: align misaligned candidates down to min_block_size instead of
    bailing out, for both the RHS and LHS paths (Matthew).


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