CVE-2026-99237
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-11-02
Modified: 2026-11-03
First seen: 2026-11-02
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Hold trace_types_lock when resetting last boot data from readers update_last_data_if_empty() is called from tracing_open() with O_TRUNC, tracing_read_pipe() and tracing_buffers_read() without trace_types_lock. Two readers can both pass the LAST_BOOT test and free module_delta twice, and a module notifier can update module_delta while it is being freed. Take trace_types_lock in those paths and keep the callers that already hold it on an unlocked variant.
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < 92b69f6db640dadc0851762ee2e12db99f083cad |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < d6d991afe775ab7fcf89523a2502b7ca3be56ffd |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < 1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aa |
| Linux | Linux | 6.16 |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < 92b69f6db640dadc0851762ee2e12db99f083cad |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < d6d991afe775ab7fcf89523a2502b7ca3be56ffd |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < 1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aa |
| Linux | Linux | 32dc0042528d385d83bf458e4cf3a49c5110afea < 5a6bd62f09147b49b31fd19d4eba122cb5f941a1 |
| Linux | Linux | 6.16 |