CVE-2024-46823: kunit/overflow: Fix UB in overflow_allocation_test
First published: Fri Sep 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: kunit/overflow: Fix UB in overflow_allocation_test The 'device_name' array doesn't exist out of the 'overflow_allocation_test' function scope. However, it is being used as a driver name when calling 'kunit_driver_create' from 'kunit_device_register'. It produces the kernel panic with KASAN enabled. Since this variable is used in one place only, remove it and pass the device name into kunit_device_register directly as an ascii string.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.10.10 | |
| Linux Linux kernel | =6.11-rc1 | |
| Linux Linux kernel | =6.11-rc2 | |
| Linux Linux kernel | =6.11-rc3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.115-1<=6.1.119-1 | 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/d1207f07decc66546a7fa463d2f335a856c986ef
- https://git.kernel.org/stable/c/92e9bac18124682c4b99ede9ee3bcdd68f121e92
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-46823
- https://nvd.nist.gov/vuln/detail/CVE-2024-46823
- https://launchpad.net/bugs/cve/CVE-2024-46823
- https://security-tracker.debian.org/tracker/CVE-2024-46823
- https://ubuntu.com/security/CVE-2024-46823
- https://git.kernel.org/linus/92e9bac18124682c4b99ede9ee3bcdd68f121e92
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