CVE-2026-72177
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs() Patch series "mm/damon/sysfs-schemes: fix wrong directories put orders in error paths". Error paths of damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions put references to directories in wrong orders. As a result, uninitialized memory dereference and/or memory leak can happen. Fix those. This patch (of 2): In access_pattern_add_dirs(), error handling path puts references starting from setup failed directories. If the failure happpened from the initial allication in the setup functions, uninitialized memory dereference happen. The allocation failures will not commonly happen, but the consequence is quite bad. Fix the wrong reference put orders. The issue was discovered [1] by Sashiko.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-08-15 06:21:35.937000
Last modified
2026-11-06 17:19:39.133000
View original CVE JSON
{
"id": "CVE-2026-72177",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-08-15T06:21:35.937",
"lastModified": "2026-11-06T17:19:39.133",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs()\n\nPatch series \"mm/damon/sysfs-schemes: fix wrong directories put orders in\nerror paths\".\n\nError paths of damon_sysfs_access_pattern_add_dirs() and\ndamon_sysfs_scheme_add_dirs() functions put references to directories in\nwrong orders. As a result, uninitialized memory dereference and/or\nmemory leak can happen. Fix those.\n\n\nThis patch (of 2):\n\nIn access_pattern_add_dirs(), error handling path puts references starting\nfrom setup failed directories. If the failure happpened from the initial\nallication in the setup functions, uninitialized memory dereference\nhappen. The allocation failures will not commonly happen, but the\nconsequence is quite bad. Fix the wrong reference put orders.\n\nThe issue was discovered [1] by Sashiko."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"mm/damon/sysfs-schemes.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
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{
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{
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{
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},
{
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},
{
"version": "7.1.5",
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},
{
"version": "7.2",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
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}
]
}
]
}
],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-06T16:52:30.324140Z",
"id": "CVE-2026-72177",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
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},
"references": [
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"url": "https://git.kernel.org/stable/c/0710cc97962ca3bcabaa15ce7fead300faf726cd",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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}