CVE-2026-64092

{"id": "CVE-2026-64092", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "268078acae72daa12b17b2b299701cb9924e469a", "lessThan": "7715c73f33260af724d734c41b794457e9be8dbc", "versionType": "git"}, {"status": "affected", "version": "58943b7ea356294749dae3e75b96c0ee292c00be", "lessThan": "297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae", "versionType": "git"}, {"status": "affected", "version": "79bc0eaeef2c5797317bf2da8e3159a74d62ec47", "lessThan": "0b1bedf114ea93fef929b31f0d70a9eedcc601de", "versionType": "git"}, {"status": "affected", "version": "26dfeee8db81354bfdade155f27f9e16510ad196", "lessThan": "a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0", "versionType": "git"}, {"status": "affected", "version": "03660dab86f93319178a24667f6998526dc4355d", "lessThan": "b285bc0a97f43823a4967fb6d286de4c7f53d541", "versionType": "git"}, {"status": "affected", "version": "8634c1dbd73adb74d40533ebb7e914efb82e71fb", "lessThan": "d078501dde9b57210f1808cdef4b59463d1f5fc8", "versionType": "git"}, {"status": "affected", "version": "3d3cf6a7314aca4df0a6dde28ce784a2a30d0166", "lessThan": "77098e4bea37af51d3962efa88a5af2ea5e1ac57", "versionType": "git"}, {"status": "affected", "version": "5e7d0ac936354c36810e74ac3056b334ed1f4058", "versionType": "git"}, {"status": "affected", "version": "5.10.259", "lessThan": "5.11", "versionType": "semver"}], "programFiles": ["net/batman-adv/tp_meter.c", "net/batman-adv/types.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.6.140", "lessThan": "6.6.142", "versionType": "semver"}, {"status": "affected", "version": "6.12.90", "lessThan": "6.12.92", "versionType": "semver"}, {"status": "affected", "version": "6.18.32", "lessThan": "6.18.34", "versionType": "semver"}, {"status": "affected", "version": "7.0.9", "lessThan": "7.0.11", "versionType": "semver"}], "programFiles": ["net/batman-adv/tp_meter.c", "net/batman-adv/types.h"], "defaultStatus": "unaffected"}]}], "published": "2026-07-19T16:17:50.110", "references": [{"url": "https://git.kernel.org/stable/c/0b1bedf114ea93fef929b31f0d70a9eedcc601de", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/77098e4bea37af51d3962efa88a5af2ea5e1ac57", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7715c73f33260af724d734c41b794457e9be8dbc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b285bc0a97f43823a4967fb6d286de4c7f53d541", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d078501dde9b57210f1808cdef4b59463d1f5fc8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown\n\nThe receiver shutdown timer handler, batadv_tp_receiver_shutdown(), is\nresponsible for releasing the tp_vars reference it holds. However, the\nexisting logic for coordinating this release with batadv_tp_stop_all() was\nflawed.\n\ntimer_shutdown_sync() guarantees the timer will not fire again after it\nreturns, but it returns non-zero only when the timer was pending at the\ntime of the call. If the timer had already expired (and\nbatadv_tp_stop_all() would unsucessfully try to rearm itself),\nbatadv_tp_stop_all() skips its batadv_tp_vars_put(), and\nbatadv_tp_receiver_shutdown() fails to put its own reference as well.\n\nFix this by introducing a new atomic variable receiving that is set to 1\nwhen the receiver is initialized and cleared atomically with atomic_xchg()\nby whichever side claims it first. Only the side that observes the\ntransition from 1 to 0 is responsible for releasing the tp_vars timer\nreference, eliminating the uncertainty."}], "lastModified": "2026-08-11T15:56:10.913", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52F60680-8824-4BB5-AF9B-B593D23018AE", "versionEndExcluding": "5.11", "versionStartIncluding": "5.10.259"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1E966F8-896E-4653-A70D-9B2660702141", "versionEndExcluding": "6.6.142", "versionStartIncluding": "6.6.140"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "09314CE7-0CBC-4846-B639-D8185EBE190D", "versionEndExcluding": "6.12.92", "versionStartIncluding": "6.12.90"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9D28F68-AF1E-4CF4-B589-966863C139E2", "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.18.32"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D1BB9702-0A27-4DFA-8EE4-D778DC6188C8", "versionEndExcluding": "7.0.11", "versionStartIncluding": "7.0.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}