{"id":"ASB-A-150693166","details":"In audit_free_lsm_field of auditfilter.c, there is a possible bad kfree due to a logic error in audit_data_to_entry. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","aliases":["A-150693166","CVE-2020-0444"],"modified":"2026-04-06T15:14:00.904280Z","published":"2020-12-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2020-12-01"},{"type":"FIX","url":"https://android.googlesource.com/kernel/common/+/2ad3e17ebf94b7b7f3f64c050ff168f9915345eb"}],"affected":[{"package":{"name":":linux_kernel:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2020-12-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"vanir_signatures":[{"digest":{"length":3591,"function_hash":"262188255296507625842075697071702071322"},"deprecated":false,"signature_type":"Function","target":{"function":"audit_data_to_entry","file":"kernel/auditfilter.c"},"source":"https://android.googlesource.com/kernel/common/+/2ad3e17ebf94b7b7f3f64c050ff168f9915345eb","id":"ASB-A-150693166-2cb7d8b5","signature_version":"v1"},{"digest":{"threshold":0.9,"line_hashes":["335514774952053068964126000723708737175","50767499278571900786777115030171832129","184221901908642089008691165801321016453","105992563030535888628015553557154869553","31888528108927617897229064440158833545","84448697986447306441635035679656726738","144025954782965084951563756656439483085","170313191273812626468463772270364602927","333248594055293915611518991262198810902","59783601544904464130894031068210201112","48238227169478142205471660278628900696","41672313396660055001056083877625276946","214003543767909984382572164898282291964","282924885902500257148976841991946254537","223048105196560746745437056321955654616","53627253512501429047119946883975273735","219616349745628213720712376577013891905","283963557676695802213747314975127181421","273656317033648809144065737704893072908","310039714268241659649062295606362885941","315084894595132378654372713456928273851","154119856103426292454001406880282571884","124015898162614780210255657506734683664","124207153743960250935567817359614056617","153048774387929105147999885441996296058","136417199786686894996399420720366913649","211840676650842940095726349714775078690","268686139647440531815577365584022473413","127882950943779954527254396117843952018","53351867666220115086638698212202189188","103483723812474125269414283030725370985","265829811888219379433303618133097570522","338059516959089279344950378467210812421","52054132740565018966712615487239195231","327505491822289074440793831796496901909","191009561208431341461193231514261528212","57036873887898810577267885057949380622","276368582912883207519103516965950879453","237520554243828390299928141019747994695","327782864136562597165435333252679503967","103521899021050542510719151317591139652","211840676650842940095726349714775078690","193580817198326137167812747584757047487","198908970498491258405730266460081183411","324591286527466813078954433957541269116","2729743433998156932127181895434864970","51642668175666219300810495671629900820","147599151612067677427653225030276874848","91455851158841033399570578415278808219","330332080155768710519069543564593935249","336677856464835676374532098993346704142","116985298024379880114721730673948070505","211840676650842940095726349714775078690","8351655231751420186845533735464964004","168790572808256581065311631655430750330","23864246176049884177010821143214461515","313704123098083208710735500637262167028","21241484165244501140024064164445543529","30963839319373696656996015835746271000","239485955192251444650256782046408994758","247683033351277952499436307688996298837","243454099898185198731971492951940856826","108495023009607383559146193386054706804","136252688663382179044827454806103652121","1272715372609216643903115861645229265","85577835452524913333902766216798345941","153095717059807488132964599499364781559","326739567074868613411720547276050423903","237240067380879796977600526032081019411","211840676650842940095726349714775078690","195230615717211493717469139561899427695","162554109719924627922443387326413572676","264834071073267574876220737203550577022","41437096957090518402679123537108280249","266737351318371305323467437281474691580","235536158269672325666820542859051141663","292604153892070604092198405765848372834","11824543486525532556152847182745448705","142817662931435557744694740603713231625","331318686389710491539660643214296578332","180635996297300982257064365523581658723","217898223302724187441156363615921668257","175289658647832783601090359132033125621","109367842031855669099981976734094323731","132759606558636876860866177364620579599","280849594327729146074182145607247674618","191629326517677715884199181763126676506","27793219605463335627360929778610712619","198832386553704380516357304809091339440","337068165094842025191864577899095368431","14075623874692587671684539082274243437","111331879496888133595615321740787610463"]},"deprecated":false,"signature_type":"Line","target":{"file":"kernel/auditfilter.c"},"source":"https://android.googlesource.com/kernel/common/+/2ad3e17ebf94b7b7f3f64c050ff168f9915345eb","i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