{"id":"CVE-2026-72396","summary":"hwmon: adm1275: Prevent reading uninitialized stack","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: adm1275: Prevent reading uninitialized stack\n\nWhile adding support for the ROHM BD127X0 hot-swap controllers, sashiko\nreported an error in device-name comparison, which can lead to reading\nuninitialized stack memory.\n\nQuoting Sashiko:\n\nThis is a pre-existing issue, but I noticed that just before this block in\nadm1275_probe(), there might be an out-of-bounds stack read:\n\n    ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer);\n    if (ret \u003c 0) { ... }\n    for (mid = adm1275_id; mid-\u003ename[0]; mid++) {\n            if (!strncasecmp(mid-\u003ename, block_buffer, strlen(mid-\u003ename)))\n                    break;\n    }\n\nSince i2c_smbus_read_block_data() reads up to 32 bytes into the\nuninitialized stack array block_buffer without appending a null\nterminator, strncasecmp() could read past the valid bytes returned in ret.\n\nFor example, if the device returns a shorter string like \"adm12\", checking\nit against \"adm1275\" up to the length of \"adm1275\" will continue reading\ninto uninitialized stack bounds.\n\nPrevent reading uninitialized memory by zeroing the stack array.","modified":"2026-08-18T03:31:16.903019660Z","published":"2026-08-15T05:56:23.067Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72396.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/36554592e2f5cac16ff8bf73720d38a6d9ef4a20"},{"type":"WEB","url":"https://git.kernel.org/stable/c/39a581bd64a0e91112ec8017a2dd4e70c1336e99"},{"type":"WEB","url":"https://git.kernel.org/stable/c/553f9517813912a5ab661af5504485d96824a61c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/57d583f069fa9d3d0c0831e34b967d1f61edae94"},{"type":"WEB","url":"https://git.kernel.org/stable/c/82e4ab03a6ab9b87667410f5143bc484d7a62bdc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/93b96e723bdcba6172a5814262be875abcc5d269"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa35cee30686e6be3c890bf741429c5025d55abe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c9e04a52663bc6651c06c2427df088b751062bd6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72396.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72396"},{"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":"87102808d03948c825c3bdc48316e48f6422fd7e"},{"fixed":"57d583f069fa9d3d0c0831e34b967d1f61edae94"},{"fixed":"82e4ab03a6ab9b87667410f5143bc484d7a62bdc"},{"fixed":"c9e04a52663bc6651c06c2427df088b751062bd6"},{"fixed":"39a581bd64a0e91112ec8017a2dd4e70c1336e99"},{"fixed":"aa35cee30686e6be3c890bf741429c5025d55abe"},{"fixed":"36554592e2f5cac16ff8bf73720d38a6d9ef4a20"},{"fixed":"93b96e723bdcba6172a5814262be875abcc5d269"},{"fixed":"553f9517813912a5ab661af5504485d96824a61c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72396.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72396.json"}}],"schema_version":"1.9.0"}