CVE-2022-49832
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < aaf552c5d53abe4659176e099575fe870d2e4768 | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < b4d9f55cd38435358bc16d580612bc0d798d7b4c | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < a988dcd3dd9e691c5ccc3324b209688f3b5453e9 | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < 040f726fecd88121f3b95e70369785ad452dddf9 | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < 777430aa4ddccaa5accec6db90ffc1d47f00d471 | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < 97e5b508e96176f1a73888ed89df396d7041bfcb | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < 5834a3a98cd266ad35a229923c0adbd0addc8d68 | affected |
| Linux | Linux | 57291ce295c0aca738dd284c4a9c591c09ebee71 < 91d5c5060ee24fe8da88cd585bb43b843d2f0dce | affected |
| Linux | Linux | 3.5 | affected |
| Linux | Linux | 0 < 3.5 | unaffected |
| Linux | Linux | 4.9.334 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.300 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.267 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.225 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.156 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.80 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.10 <= 6.0.* | unaffected |
| Linux | Linux | 6.1 <= * | unaffected |
Weaknesses
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
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