CVE-2026-72244
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
In the Linux kernel GPU buddy subsystem, an alignment issue was found in the try_harder function. When a candidate was not aligned to min_block_size, the returned range could have an incorrect offset. The fix aligns candidates down to min_block_size instead of rejecting the request, ensuring correct operation.
Risk Assessment
Improper alignment can lead to memory allocation errors, potentially causing system crashes or unpredictable behavior in GPU-using environments.
Recommendation
It is recommended to update the Linux kernel to a version containing the fix and monitor for GPU memory allocation error messages.
Original NVD description (English source)
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).