{"id":"ASB-A-498749316","details":"In fuse_backing_mmap of backing.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-498749316","CVE-2026-58829"],"modified":"2026-11-02T16:56:27.530775751Z","published":"2026-11-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2026-11-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/984713cde654f06871c542c469e3c226c8a79d9b"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/517040c192cebb334766f43604e6a7ebb79d43ae"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2026-11-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"vanir_signatures":[{"source":"https://android.googlesource.com/kernel/common/+/984713cde654f06871c542c469e3c226c8a79d9b","target":{"file":"fs/fuse/backing.c","function":"fuse_backing_mmap"},"deprecated":false,"digest":{"function_hash":"103183245435895329758111521619183412475","length":765},"id":"ASB-A-498749316-09cdf045","signature_type":"Function","signature_version":"v1"},{"digest":{"line_hashes":["193087334283541105748510376634326329498","213455037205509970408385564439593171795","54751123933479230246249745524088194866","313169304456861125466987609152104425572","335854022435646259869140970020295193341","216655824640211384670769291939847961504","31385670489753421034455589149691118878","184357602709528659277979582734931232071","34474630534719346179715003026132362452"],"threshold":0.9},"id":"ASB-A-498749316-11d00b28","signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/517040c192cebb334766f43604e6a7ebb79d43ae","target":{"file":"fs/fuse/backing.c"},"deprecated":false},{"signature_type":"Line","signature_version":"v1","source":"https://android.googlesource.com/kernel/common/+/984713cde654f06871c542c469e3c226c8a79d9b","target":{"file":"fs/fuse/backing.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["193087334283541105748510376634326329498","213455037205509970408385564439593171795","54751123933479230246249745524088194866","313169304456861125466987609152104425572","335854022435646259869140970020295193341","216655824640211384670769291939847961504","31385670489753421034455589149691118878","184357602709528659277979582734931232071","34474630534719346179715003026132362452"]},"id":"ASB-A-498749316-9a22e9d0"},{"source":"https://android.googlesource.com/kernel/common/+/517040c192cebb334766f43604e6a7ebb79d43ae","target":{"function":"fuse_backing_mmap","file":"fs/fuse/backing.c"},"deprecated":false,"digest":{"function_hash":"7599780377113517780085190989890077268","length":802},"id":"ASB-A-498749316-b0ec825d","signature_type":"Function","signature_version":"v1"}],"fixes":["https://android.googlesource.com/kernel/common/+/984713cde654f06871c542c469e3c226c8a79d9b","https://android.googlesource.com/kernel/common/+/517040c192cebb334766f43604e6a7ebb79d43ae"],"severity":"High","spl":"2026-11-05","types":["EoP"]},"database_specific":{"source":"https://storage.googleapis.com/android-osv/ASB-A-498749316.json"}}],"schema_version":"1.9.2"}