Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debug_set_level() Commit a2cec6863709 ("s390/debug: Add s390dbf kernel parameter") incorrectly removed a null-id check from debug_set_level(), introducing a possible NULL pointer dereference for debug-API users that put debug_register() results unchecked into debug_set_level(). Fix this by moving the check from the internal _debug_set_level() variant back to the external debug_set_level() wrapper.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a2cec6863709d6673a025acc066c962b85a75842 before 716e1cd3783806929407dbd596e6b1118971eb9e; affected a2cec6863709d6673a025acc066c962b85a75842 before b1eb31d533cdfcae1011ed53850d52f36afe5774 |
| Linux / Linux | affected 7.2; unaffected 0 before 7.2; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.