Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field If driver read val value sufficient for (val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7)) from device then Null pointer dereference occurs. (It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers) Also lm75[] does not serve a purpose anymore after switching to devm_i2c_new_dummy_device() in w83791d_detect_subclients(). The patch fixes possible NULL pointer dereference by removing lm75[]. Found by Linux Driver Verification project (linuxtesting.org). [groeck: Dropped unnecessary continuation lines, fixed multipline alignment]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f64211151db4269341ee6432ce832ae3756725ad before 200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1; affected f64211151db4269341ee6432ce832ae3756725ad before 1499bb2c3a87a2efea0065adab2bd66badee61c3; affected f64211151db4269341ee6432ce832ae3756725ad before 24af1fe376e22c42238a4a604d31e46c486876c3; affected f64211151db4269341ee6432ce832ae3756725ad before 0f36b88173f028e372668ae040ab1a496834d278 |
| Linux / Linux | affected 5.4; unaffected 0 before 5.4; unaffected 5.4.151 through 5.4.*; unaffected 5.10.71 through 5.10.*; unaffected 5.14.10 through 5.14.*; unaffected 5.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1
- https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3
- https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3
- https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.