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CVE-2025-38393

NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.240, 5.15.187, 5.19, 6.1.144, 6.6.97, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count was zero. It seems most likely that this is another race between the waiter and waker similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task"). Fix it up by applying the advised barrier.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 8acc3e228e1c90bd410f73597a4549e0409f22d6 · fixed in 08287df60bac5b008b6bcdb03053988335d3d282; From ec23a86e060cbe30b62eb2955adc97c92d80cc4c · fixed in 8846fd02c98da8b79e6343a20e6071be6f372180; From 880265c77ac415090090d1fe72a188fee71cb458 · fixed in e4b13885e7ef1e64e45268feef1e5f0707c47e72; From 880265c77ac415090090d1fe72a188fee71cb458 · fixed in 8ca65fa71024a1767a59ffbc6a6e2278af84735e; From 880265c77ac415090090d1fe72a188fee71cb458 · fixed in 864a54c1243ed3ca60baa4bc492dede1361f4c83; From 880265c77ac415090090d1fe72a188fee71cb458 · fixed in 1f4da20080718f258e189a2c5f515385fa393da6; From 880265c77ac415090090d1fe72a188fee71cb458 · fixed in c01776287414ca43412d1319d2877cbad65444ac; From 5.10.124 · fixed in 5.10.240; From 5.15.49 · fixed in 5.15.187; From 5.18.6 · fixed in 5.19

  • Linux Linux

    5.19

  • KernelLinux

    fixed in 5.10.240; From 5.11.0 · fixed in 5.15.187; From 5.16.0 · fixed in 6.1.144; From 5.19.0 · fixed in 6.6.97; From 6.2.0 · fixed in 6.12.37; From 6.7.0 · fixed in 6.15.6

References 7

git.kernel.org