hwmon: adm1275: Prevent reading uninitialized stack
Summary
| CVE | CVE-2026-72396 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:22:13 UTC |
| Updated | 2026-08-17 06:19:06 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: hwmon: adm1275: Prevent reading uninitialized stack While adding support for the ROHM BD127X0 hot-swap controllers, sashiko reported an error in device-name comparison, which can lead to reading uninitialized stack memory. Quoting Sashiko: This is a pre-existing issue, but I noticed that just before this block in adm1275_probe(), there might be an out-of-bounds stack read: ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer); if (ret < 0) { ... } for (mid = adm1275_id; mid->name[0]; mid++) { if (!strncasecmp(mid->name, block_buffer, strlen(mid->name))) break; } Since i2c_smbus_read_block_data() reads up to 32 bytes into the uninitialized stack array block_buffer without appending a null terminator, strncasecmp() could read past the valid bytes returned in ret. For example, if the device returns a shorter string like "adm12", checking it against "adm1275" up to the length of "adm1275" will continue reading into uninitialized stack bounds. Prevent reading uninitialized memory by zeroing the stack array. |
Risk And Classification
EPSS: 0.002200000 probability, percentile 0.127050000 (date 2026-08-17)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 57d583f069fa9d3d0c0831e34b967d1f61edae94 git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 82e4ab03a6ab9b87667410f5143bc484d7a62bdc git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e c9e04a52663bc6651c06c2427df088b751062bd6 git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 39a581bd64a0e91112ec8017a2dd4e70c1336e99 git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e aa35cee30686e6be3c890bf741429c5025d55abe git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 36554592e2f5cac16ff8bf73720d38a6d9ef4a20 git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 93b96e723bdcba6172a5814262be875abcc5d269 git | Not specified |
| CNA | Linux | Linux | affected 87102808d03948c825c3bdc48316e48f6422fd7e 553f9517813912a5ab661af5504485d96824a61c git | Not specified |
| CNA | Linux | Linux | affected 3.3 | Not specified |
| CNA | Linux | Linux | unaffected 3.3 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/553f9517813912a5ab661af5504485d96824a61c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c9e04a52663bc6651c06c2427df088b751062bd6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/93b96e723bdcba6172a5814262be875abcc5d269 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/57d583f069fa9d3d0c0831e34b967d1f61edae94 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/39a581bd64a0e91112ec8017a2dd4e70c1336e99 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/aa35cee30686e6be3c890bf741429c5025d55abe | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/36554592e2f5cac16ff8bf73720d38a6d9ef4a20 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/82e4ab03a6ab9b87667410f5143bc484d7a62bdc | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.