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1.5 KiB
1.5 KiB
CVE-2025-38393
Description
In the Linux kernel, the following vulnerability has been resolved:NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAINWe found a few different systems hung up in writeback waiting on the samepage lock, and one task waiting on the NFS_LAYOUT_DRAIN bit inpnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding countwas zero.It seems most likely that this is another race between the waiter and wakersimilar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task").Fix it up by applying the advised barrier.
POC
Reference
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