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vuln-cve/data/2025/40xxx/CVE-2025-40196.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-40196",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T07:20:57.178Z",
"datePublished": "2025-11-12T21:56:32.578Z",
"dateUpdated": "2026-11-10T12:37:42.958Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-07-24T14:33:26.656Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: quota: create dedicated workqueue for quota_release_work\n\nThere is a kernel panic due to WARN_ONCE when panic_on_warn is set.\n\nThis issue occurs when writeback is triggered due to sync call for an\nopened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance\nis needed at sync path, flush for quota_release_work is triggered.\nBy default quota_release_work is queued to \"events_unbound\" queue which\ndoes not have WQ_MEM_RECLAIM flag. During f2fs balance \"writeback\"\nworkqueue tries to flush quota_release_work causing kernel panic due to\nMEM_RECLAIM flag mismatch errors.\n\nThis patch creates dedicated workqueue with WQ_MEM_RECLAIM flag\nfor work quota_release_work.\n\n------------[ cut here ]------------\nWARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148\nCall trace:\n check_flush_dependency+0x13c/0x148\n __flush_work+0xd0/0x398\n flush_delayed_work+0x44/0x5c\n dquot_writeback_dquots+0x54/0x318\n f2fs_do_quota_sync+0xb8/0x1a8\n f2fs_write_checkpoint+0x3cc/0x99c\n f2fs_gc+0x190/0x750\n f2fs_balance_fs+0x110/0x168\n f2fs_write_single_data_page+0x474/0x7dc\n f2fs_write_data_pages+0x7d0/0xd0c\n do_writepages+0xe0/0x2f4\n __writeback_single_inode+0x44/0x4ac\n writeback_sb_inodes+0x30c/0x538\n wb_writeback+0xf4/0x440\n wb_workfn+0x128/0x5d4\n process_scheduled_works+0x1c4/0x45c\n worker_thread+0x32c/0x3e8\n kthread+0x11c/0x1b0\n ret_from_fork+0x10/0x20\nKernel panic - not syncing: kernel: panic_on_warn set ..."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/quota/dquot.c"
],
"versions": [
{
"version": "3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb",
"lessThan": "8df2eedd371a1c24ecc4283581299d7737dfcd06",
"status": "affected",
"versionType": "git"
},
{
"version": "bcacb52a985f1b6d280f698a470b873dfe52728a",
"lessThan": "f846eacde280ecc3daedfe001580e3033565179e",
"status": "affected",
"versionType": "git"
},
{
"version": "8ea87e34792258825d290f4dc5216276e91cb224",
"lessThan": "f12039df1515d5daf7d92e586ece5cefeb39561b",
"status": "affected",
"versionType": "git"
},
{
"version": "ac6f420291b3fee1113f21d612fa88b628afab5b",
"lessThan": "8a09a62f0c8c6123c2f1864ed6d5f9eb144afaf0",
"status": "affected",
"versionType": "git"
},
{
"version": "ac6f420291b3fee1113f21d612fa88b628afab5b",
"lessThan": "72b7ceca857f38a8ca7c5629feffc63769638974",
"status": "affected",
"versionType": "git"
},
{
"version": "a5abba5e0e586e258ded3e798fe5f69c66fec198",
"status": "affected",
"versionType": "git"
},
{
"version": "6f3821acd7c3143145999248087de5fb4b48cf26",
"status": "affected",
"versionType": "git"
},
{
"version": "ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb",
"status": "affected",
"versionType": "git"
},
{
"version": "6.1.120",
"lessThan": "6.1.178",
"status": "affected",
"versionType": "semver"
},
{
"version": "6.6.64",
"lessThan": "6.6.114",
"status": "affected",
"versionType": "semver"
},
{
"version": "6.12.4",
"lessThan": "6.12.54",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.4.287",
"lessThan": "5.5",
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},
{
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"lessThan": "5.11",
"status": "affected",
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},
{
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"lessThan": "5.16",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/quota/dquot.c"
],
"versions": [
{
"version": "6.13",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.13",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.178",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.114",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.54",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17.4",
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.1.120",
"versionEndExcluding": "6.1.178"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.6.64",
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},
{
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},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
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},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13",
"versionEndExcluding": "6.18"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.287"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10.231"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.15.174"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/8df2eedd371a1c24ecc4283581299d7737dfcd06"
},
{
"url": "https://git.kernel.org/stable/c/f846eacde280ecc3daedfe001580e3033565179e"
},
{
"url": "https://git.kernel.org/stable/c/f12039df1515d5daf7d92e586ece5cefeb39561b"
},
{
"url": "https://git.kernel.org/stable/c/8a09a62f0c8c6123c2f1864ed6d5f9eb144afaf0"
},
{
"url": "https://git.kernel.org/stable/c/72b7ceca857f38a8ca7c5629feffc63769638974"
}
],
"title": "fs: quota: create dedicated workqueue for quota_release_work",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
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"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:37:42.958Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
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},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}
]
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]
}
}
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