CVE-2025-38393NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Not yet received
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8acc3e228e1c90bd410f73597a4549e0409f22d6 before 08287df60bac5b008b6bcdb03053988335d3d282; from ec23a86e060cbe30b62eb2955adc97c92d80cc4c before 8846fd02c98da8b79e6343a20e6071be6f372180; from 880265c77ac415090090d1fe72a188fee71cb458 before e4b13885e7ef1e64e45268feef1e5f0707c47e72; 880265c77ac415090090d1fe72a188fee71cb458 builds before 8ca65fa71024a1767a59ffbc6a6e2278af84735e; 880265c77ac415090090d1fe72a188fee71cb458 builds before 864a54c1243ed3ca60baa4bc492dede1361f4c83; 880265c77ac415090090d1fe72a188fee71cb458 builds before 1f4da20080718f258e189a2c5f515385fa393da6; from 880265c77ac415090090d1fe72a188fee71cb458 before c01776287414ca43412d1319d2877cbad65444ac; f133819e24e78f3aaaa00e9fa2b816d5f73fd172; and 3 more ranges | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
References
- https://git.kernel.org/stable/c/08287df60bac5b008b6bcdb03053988335d3d282
- https://git.kernel.org/stable/c/8846fd02c98da8b79e6343a20e6071be6f372180
- https://git.kernel.org/stable/c/e4b13885e7ef1e64e45268feef1e5f0707c47e72
- https://git.kernel.org/stable/c/8ca65fa71024a1767a59ffbc6a6e2278af84735e
- https://git.kernel.org/stable/c/864a54c1243ed3ca60baa4bc492dede1361f4c83
- https://git.kernel.org/stable/c/1f4da20080718f258e189a2c5f515385fa393da6
- https://git.kernel.org/stable/c/c01776287414ca43412d1319d2877cbad65444ac
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.