{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68165", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.372Z", "datePublished": "2026-08-10T11:59:33.152Z", "dateUpdated": "2026-08-10T11:59:33.152Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T11:59:33.152Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: validate ranges in damon_set_regions()\n\nDAMON core logic assumes zero length regions don't exist. However, a few\nDAMON API callers including DAMON_SYSFS, DAMON_RECLAIM and DAMON_LRU_SORT\nallow users to set empty monitoring target regions. This could result in\nWARN_ONCE() on CONFIG_DAMON_DEBUG_SANITY enabled kernel, and\ndivide-by-zero from damon_merge_two_regions().\n\nFor example, the WANR_ONCE() can be triggered like below.\n\n # grep DAMON_DEBUG_SANITY /boot/config-$(uname -r)\n # CONFIG_DAMON_DEBUG_SANITY=y\n # damo start\n # cd /sys/kernel/mm/damon/admin/kdamonds/0\n # echo 0 > contexts/0/targets/0/regions/0/start\n # echo 0 > contexts/0/targets/0/regions/0/end\n # echo commit > state\n # dmesg\n [....]\n [ 73.705780] ------------[ cut here ]------------\n [ 73.707552] start 0 >= end 0\n [ 73.708452] WARNING: mm/damon/core.c:359 at damon_new_region+0x6e/0x80, CPU#1: kdamond.0/758\n [...]\n\nAll DAMON API callers eventually use damon_set_regions() to setup the\nregions. Add the validation logic in the function."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/core.c"], "versions": [{"version": "43b0536cb4710e7bb591edfda7e68a1c327a3409", "lessThan": "b585facbafbb5cf117b37b1c75819ac046646c27", "status": "affected", "versionType": "git"}, {"version": "43b0536cb4710e7bb591edfda7e68a1c327a3409", "lessThan": "c927b73a5694c735314ea10e7c81c07f9bd51ad7", "status": "affected", "versionType": "git"}, {"version": "43b0536cb4710e7bb591edfda7e68a1c327a3409", "lessThan": "4b6f1d6d5d07855bd1bb9e64922b049062138bfa", "status": "affected", "versionType": "git"}, {"version": "43b0536cb4710e7bb591edfda7e68a1c327a3409", "lessThan": "43aaddd0fa92010a68adeda7744c7cf497a1c8e9", "status": "affected", "versionType": "git"}, {"version": "43b0536cb4710e7bb591edfda7e68a1c327a3409", "lessThan": "1292c0ecb1caefb8ca064a3639d5673991e8810c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/core.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "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": "5.16", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "7.2-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b585facbafbb5cf117b37b1c75819ac046646c27"}, {"url": "https://git.kernel.org/stable/c/c927b73a5694c735314ea10e7c81c07f9bd51ad7"}, {"url": "https://git.kernel.org/stable/c/4b6f1d6d5d07855bd1bb9e64922b049062138bfa"}, {"url": "https://git.kernel.org/stable/c/43aaddd0fa92010a68adeda7744c7cf497a1c8e9"}, {"url": "https://git.kernel.org/stable/c/1292c0ecb1caefb8ca064a3639d5673991e8810c"}], "title": "mm/damon/core: validate ranges in damon_set_regions()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43b0536cb4710e7bb591edfda7e68a1c327a3409,b585facbafbb5cf117b37b1c75819ac046646c27)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43b0536cb4710e7bb591edfda7e68a1c327a3409,c927b73a5694c735314ea10e7c81c07f9bd51ad7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43b0536cb4710e7bb591edfda7e68a1c327a3409,4b6f1d6d5d07855bd1bb9e64922b049062138bfa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43b0536cb4710e7bb591edfda7e68a1c327a3409,43aaddd0fa92010a68adeda7744c7cf497a1c8e9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43b0536cb4710e7bb591edfda7e68a1c327a3409,1292c0ecb1caefb8ca064a3639d5673991e8810c)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T16:15:04.169890+00:00", "updated": "2026-08-10T16:15:04.169929+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}