CVE-2026-97980
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a2cec6863709d6673a025acc066c962b85a75842 < 716e1cd3783806929407dbd596e6b1118971eb9e | affected |
| Linux | Linux | a2cec6863709d6673a025acc066c962b85a75842 < b1eb31d533cdfcae1011ed53850d52f36afe5774 | affected |
| Linux | Linux | 7.2 | affected |
| Linux | Linux | 0 < 7.2 | unaffected |
| Linux | Linux | 7.2.7 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc3 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/716e1cd3783806929407dbd596e6b1118971eb9e
- https://git.kernel.org/stable/c/b1eb31d533cdfcae1011ed53850d52f36afe5774
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