{"id":"CVE-2025-37966","summary":"riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL\n\nWhen userspace does PR_SET_TAGGED_ADDR_CTRL, but Supm extension is not\navailable, the kernel crashes:\n\nOops - illegal instruction [#1]\n    [snip]\nepc : set_tagged_addr_ctrl+0x112/0x15a\n ra : set_tagged_addr_ctrl+0x74/0x15a\nepc : ffffffff80011ace ra : ffffffff80011a30 sp : ffffffc60039be10\n    [snip]\nstatus: 0000000200000120 badaddr: 0000000010a79073 cause: 0000000000000002\n    set_tagged_addr_ctrl+0x112/0x15a\n    __riscv_sys_prctl+0x352/0x73c\n    do_trap_ecall_u+0x17c/0x20c\n    andle_exception+0x150/0x15c\n\nFix it by checking if Supm is available.","modified":"2026-04-02T12:47:41.151328Z","published":"2025-05-20T16:47:14.815Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37966.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4b595a2f5656cd45d534ed2160c94f7662adefe5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae08d55807c099357c047dba17624b09414635dd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37966.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37966"},{"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":"09d6775f503b393d0457c7126aa43208e1724004"},{"fixed":"4b595a2f5656cd45d534ed2160c94f7662adefe5"},{"fixed":"ae08d55807c099357c047dba17624b09414635dd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37966.json"}}],"schema_version":"1.7.5"}