CVE-2022-50170

Summary

In the Linux kernel, the following vulnerability has been resolved:

kunit: executor: Fix a memory leak on failure in kunit_filter_tests

It's possible that memory allocation for 'filtered' will fail, but for the copy of the suite to succeed. In this case, the copy could be leaked.

Properly free 'copy' in the error case for the allocation of 'filtered' failing.

Note that there may also have been a similar issue in kunit_filter_subsuites, before it was removed in "kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites".

This was reported by clang-analyzer via the kernel test robot, here: https://lore.kernel.org/all/c8073b8e-7b9e-0830-4177-87c12f16349c@intel.com/

And by smatch via Dan Carpenter and the kernel test robot: https://lore.kernel.org/all/202207101328.ASjx88yj-lkp@intel.com/

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbd8b222a0002872bb229f6c755672a093ef93ea4 < a8a7e3ced362b88b659ab54239990196ff975982affected
LinuxLinuxa02353f491622e49c7ddedc6a6dc4f1d6ed2150a < 7d69764fa3442c7615a75c6b5c02eaa1f274bccfaffected
LinuxLinuxa02353f491622e49c7ddedc6a6dc4f1d6ed2150a < 94681e289bf5d10c9db9db143d1a22d8717205c5affected
LinuxLinux80cf4932c2545bc231e933d869511008c36af1e0affected
LinuxLinux5.18.3 < 5.18.18affected
LinuxLinux5.17.14 < 5.18affected
LinuxLinux5.19affected
LinuxLinux0 < 5.19unaffected
LinuxLinux5.18.18 <= 5.18.*unaffected
LinuxLinux5.19.2 <= 5.19.*unaffected
LinuxLinux6.0 <= *unaffected

Weaknesses

References