CVE-2026-97980
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 25, 2026
First seenSep 25, 2026
How to fix
Update
- Linux Linux716e1cd3783806929407dbd596e6b1118971eb9e, b1eb31d533cdfcae1011ed53850d52f36afe5774 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a2cec6863709d6673a025acc066c962b85a75842 ≤ v < 716e1cd3783806929407dbd596e6b1118971eb9e, a2cec6863709d6673a025acc066c962b85a75842 ≤ v < b1eb31d533cdfcae1011ed53850d52f36afe5774, 7.2 | 716e1cd3783806929407dbd596e6b1118971eb9e, b1eb31d533cdfcae1011ed53850d52f36afe5774 |
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