{"id":"CVE-2026-53160","summary":"misc: fastrpc: fix use-after-free race in fastrpc_map_create","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: fix use-after-free race in fastrpc_map_create\n\nfastrpc_map_lookup returns a raw pointer after releasing fl-\u003elock. The\ncaller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero)\non this unprotected pointer. A concurrent MEM_UNMAP can free the map\nbetween the lock release and the kref operation, resulting in a\nuse-after-free on the freed slab object.\n\nRestore the take_ref parameter to fastrpc_map_lookup so the reference\nis acquired atomically under fl-\u003elock before the pointer is exposed to\nthe caller.","modified":"2026-10-28T02:30:34.017458537Z","published":"2026-06-25T08:38:42.138Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3130-1","SUSE-SU-2026:3166-1","openSUSE-SU-2026:21555-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53160.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/07ebe87915d8accdaba20c4f88c5ae430fe62fbb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0a3b87293fbd34fda651e6aead9964f84b893962"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b0166112019d1dce30b976ab28fd67f7f0be532"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8b080c89183196fd3e49212f2a1a1c4a29335b9c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/992f121796b7ca83a5a8b93da24e971363206218"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f20f6512ecb75c816e0debf4551a138f098615c4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53160.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53160"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0b70ec82b309a4093106ff399da1911ad23b52d3"},{"fixed":"0a3b87293fbd34fda651e6aead9964f84b893962"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d7513b47082c08105e837b06cebeb3f07a5fa56f"},{"fixed":"8b080c89183196fd3e49212f2a1a1c4a29335b9c"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"802359a52676176b18713e33caa17572ad009057"},{"fixed":"5b0166112019d1dce30b976ab28fd67f7f0be532"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"10df039834f84a297c72ec962c0f9b7c8c5ca31a"},{"fixed":"992f121796b7ca83a5a8b93da24e971363206218"},{"fixed":"f20f6512ecb75c816e0debf4551a138f098615c4"},{"fixed":"07ebe87915d8accdaba20c4f88c5ae430fe62fbb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.156"},{"fixed":"6.1.176"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.112"},{"fixed":"6.6.143"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.53"},{"fixed":"6.12.94"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.17.3"},{"fixed":"6.18"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f3f59bab68e9bc714f757ab22f3fb36153014043"}]}],"versions":["v6.1.175","v6.1.174","v6.1.173","v6.1.172","v6.1.171","v6.1.170","v6.1.169","v6.1.168","v6.1.167","v6.1.166","v6.1.165","v6.1.164","v6.1.163","v6.1.162","v6.1.161","v6.1.160","v6.1.159","v6.1.158","v6.1.157","v6.1.156","v6.6.142","v6.6.141","v6.6.140","v6.6.139","v6.6.138","v6.6.137","v6.6.136","v6.6.135","v6.6.134","v6.6.133","v6.6.132","v6.6.131","v6.6.130","v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120","v6.6.119","v6.6.118","v6.6.117","v6.6.116","v6.6.115","v6.6.114","v6.6.113","v6.6.112","v6.12.93","v6.12.92","v6.12.91","v6.12.90","v6.12.89","v6.12.88","v6.12.87","v6.12.86","v6.12.85","v6.12.84","v6.12.83","v6.12.82","v6.12.81","v6.12.80","v6.12.79","v6.12.78","v6.12.77","v6.12.76","v6.12.75","v6.12.74","v6.12.73","v6.12.72","v6.12.71","v6.12.70","v6.12.69","v6.12.68","v6.12.67","v6.12.66","v6.12.65","v6.12.64","v6.12.63","v6.12.62","v6.12.61","v6.12.60","v6.12.59","v6.12.58","v6.12.57","v6.12.56","v6.12.55","v6.12.54","v6.12.53","v6.17.13","v6.17.12","v6.17.11","v6.17.10","v6.17.9","v6.17.8","v6.17.7","v6.17.6","v6.17.5","v6.17.4","v6.17.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53160.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.94"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.36"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53160.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}