Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task python3/2640 Call Trace: strcmp __of_find_property of_find_property pinctrl_dt_to_map kasprintf() would return NULL pointer when kmalloc() fail to allocate. So directly return ENOMEM, if kasprintf() return NULL pointer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before aaf552c5d53abe4659176e099575fe870d2e4768; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before b4d9f55cd38435358bc16d580612bc0d798d7b4c; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before a988dcd3dd9e691c5ccc3324b209688f3b5453e9; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before 040f726fecd88121f3b95e70369785ad452dddf9; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before 777430aa4ddccaa5accec6db90ffc1d47f00d471; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before 97e5b508e96176f1a73888ed89df396d7041bfcb; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before 5834a3a98cd266ad35a229923c0adbd0addc8d68; affected 57291ce295c0aca738dd284c4a9c591c09ebee71 before 91d5c5060ee24fe8da88cd585bb43b843d2f0dce |
| Linux / Linux | affected 3.5; unaffected 0 before 3.5; unaffected 4.9.334 through 4.9.*; unaffected 4.14.300 through 4.14.*; unaffected 4.19.267 through 4.19.*; unaffected 5.4.225 through 5.4.*; unaffected 5.10.156 through 5.10.*; unaffected 5.15.80 through 5.15.*; unaffected 6.0.10 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/aaf552c5d53abe4659176e099575fe870d2e4768
- https://git.kernel.org/stable/c/b4d9f55cd38435358bc16d580612bc0d798d7b4c
- https://git.kernel.org/stable/c/a988dcd3dd9e691c5ccc3324b209688f3b5453e9
- https://git.kernel.org/stable/c/040f726fecd88121f3b95e70369785ad452dddf9
- https://git.kernel.org/stable/c/777430aa4ddccaa5accec6db90ffc1d47f00d471
- https://git.kernel.org/stable/c/97e5b508e96176f1a73888ed89df396d7041bfcb
- https://git.kernel.org/stable/c/5834a3a98cd266ad35a229923c0adbd0addc8d68
- https://git.kernel.org/stable/c/91d5c5060ee24fe8da88cd585bb43b843d2f0dce