{"id":"CVE-2022-50094","summary":"spmi: trace: fix stack-out-of-bound access in SPMI tracing functions","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nspmi: trace: fix stack-out-of-bound access in SPMI tracing functions\n\ntrace_spmi_write_begin() and trace_spmi_read_end() both call\nmemcpy() with a length of \"len + 1\".  This leads to one extra\nbyte being read beyond the end of the specified buffer.  Fix\nthis out-of-bound memory access by using a length of \"len\"\ninstead.\n\nHere is a KASAN log showing the issue:\n\nBUG: KASAN: stack-out-of-bounds in trace_event_raw_event_spmi_read_end+0x1d0/0x234\nRead of size 2 at addr ffffffc0265b7540 by task thermal@2.0-ser/1314\n...\nCall trace:\n dump_backtrace+0x0/0x3e8\n show_stack+0x2c/0x3c\n dump_stack_lvl+0xdc/0x11c\n print_address_description+0x74/0x384\n kasan_report+0x188/0x268\n kasan_check_range+0x270/0x2b0\n memcpy+0x90/0xe8\n trace_event_raw_event_spmi_read_end+0x1d0/0x234\n spmi_read_cmd+0x294/0x3ac\n spmi_ext_register_readl+0x84/0x9c\n regmap_spmi_ext_read+0x144/0x1b0 [regmap_spmi]\n _regmap_raw_read+0x40c/0x754\n regmap_raw_read+0x3a0/0x514\n regmap_bulk_read+0x418/0x494\n adc5_gen3_poll_wait_hs+0xe8/0x1e0 [qcom_spmi_adc5_gen3]\n ...\n __arm64_sys_read+0x4c/0x60\n invoke_syscall+0x80/0x218\n el0_svc_common+0xec/0x1c8\n ...\n\naddr ffffffc0265b7540 is located in stack of task thermal@2.0-ser/1314 at offset 32 in frame:\n adc5_gen3_poll_wait_hs+0x0/0x1e0 [qcom_spmi_adc5_gen3]\n\nthis frame has 1 object:\n [32, 33) 'status'\n\nMemory state around the buggy address:\n ffffffc0265b7400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1\n ffffffc0265b7480: 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffc0265b7500: 00 00 00 00 f1 f1 f1 f1 01 f3 f3 f3 00 00 00 00\n                                           ^\n ffffffc0265b7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffc0265b7600: f1 f1 f1 f1 01 f2 07 f2 f2 f2 01 f3 00 00 00 00\n==================================================================","modified":"2026-04-03T13:14:32.690413Z","published":"2025-06-18T11:02:32.591Z","related":["SUSE-SU-2025:02264-1","SUSE-SU-2025:02308-1","SUSE-SU-2025:02320-1","SUSE-SU-2025:02321-1","SUSE-SU-2025:02322-1","SUSE-SU-2025:02334-1","SUSE-SU-2025:02537-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50094.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1e0ca3d809c36ad3d1f542917718fc22ec6316e7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2af28b241eea816e6f7668d1954f15894b45d7e3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/37690cb8662cec672cacda19e6e4fd2ca7b13f0b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/504090815c1ad3fd3fa34618b54d706727f8911c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/80f7c93e573ea9f524924bb529c2af8cb28b1c43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac730c72bddc889f5610d51d8a7abf425e08da1a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bcc1b6b1ed3f42ed25858c1f1eb24a2f741db93f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc6033a7761254e5a5ba7df36b64db787a53313c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd02510fb43168310abfd0b9ccf49993a722fb91"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50094.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50094"},{"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":"a9fce374815d8ab94a3e6259802a944e2cc21408"},{"fixed":"80f7c93e573ea9f524924bb529c2af8cb28b1c43"},{"fixed":"dc6033a7761254e5a5ba7df36b64db787a53313c"},{"fixed":"ac730c72bddc889f5610d51d8a7abf425e08da1a"},{"fixed":"37690cb8662cec672cacda19e6e4fd2ca7b13f0b"},{"fixed":"dd02510fb43168310abfd0b9ccf49993a722fb91"},{"fixed":"1e0ca3d809c36ad3d1f542917718fc22ec6316e7"},{"fixed":"bcc1b6b1ed3f42ed25858c1f1eb24a2f741db93f"},{"fixed":"504090815c1ad3fd3fa34618b54d706727f8911c"},{"fixed":"2af28b241eea816e6f7668d1954f15894b45d7e3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50094.json"}}],"schema_version":"1.7.5"}