CVE-2025-40171: linux
Vulnerability summary
CVE-2025-40171 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 45 · Related 44Timeline
- 12-11-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-fc: move lsop put work to nvmet_fc_ls_req_op It’s possible for more than one async command to be in flight from __nvmet_fc_send_ls_req. For each command, a tgtport reference is taken. In the current code, only one put work item is queued at a time, which results in a leaked reference. To fix this, move the work item to the nvmet_fc_ls_req_op struct, which already tracks all resources related to the command.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
+0.03 pp
From 0.44% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu141 products
- linux< 5.15.0-170.180 | < 6.8.0-106.106 | < 6.17.0-14.14
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1100.107 | < 6.8.0-1050.53 | < 6.17.0-1007.7
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.158-1 | < 6.12.57-1 | < 6.17.6-1
Linux1 product
- linux≥ 5e0bc09a52b6169ce90f7ac6e195791adb16cec4, < 11269c08013f4ee8b8f5edc6c56700acb34092d0 | ≥ 9e6987f8937a7bd7516aa52f25cb7e12c0c92ee8, < a28112cc55013cd8cbd5d36b5115a5b851151bd9 | ≥ eaf0971fdabf2a93c1429dc6bedf3bbe85dffa30, < 060ecc81240ef9d60d9485a3a5eb55a0d6e7a25c | ≥ 710c69dbaccdac312e32931abcb8499c1525d397, < 7331925c247b03b7767b8cd93cfe1b7aa2377850 | ≥ 710c69dbaccdac312e32931abcb8499c1525d397, < 7a619f8c869117ffed08365b377f66b7e1d941b4 | ≥ 710c69dbaccdac312e32931abcb8499c1525d397, < db5a5406fb7e5337a074385c7a3e53c77f2c1bd3 | 1d86f79287206deec36d63b89c741cf542b6cadd | ≥ 5.15.150, < 5.15.195 | ≥ 6.1.80, < 6.1.156 | ≥ 6.6.19, < 6.6.112 | ≥ 6.7.7, < 6.8 | 6.8
3 vendors · 143 products
