{"cve":"CVE-2022-50094","nvd":{"published":"2025-06-18T11:15:38.620","modified":"2026-06-17T05:22:44.910","status":"Analyzed","description":"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>ffffffc0265b7500: 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==================================================================","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/1e0ca3d809c36ad3d1f542917718fc22ec6316e7","https://git.kernel.org/stable/c/2af28b241eea816e6f7668d1954f15894b45d7e3","https://git.kernel.org/stable/c/37690cb8662cec672cacda19e6e4fd2ca7b13f0b","https://git.kernel.org/stable/c/504090815c1ad3fd3fa34618b54d706727f8911c","https://git.kernel.org/stable/c/80f7c93e573ea9f524924bb529c2af8cb28b1c43"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:03:23.287444849+00:00"},"epss":{"cve":"CVE-2022-50094","score":0.00264,"percentile":0.18396,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}