CVE-2026-99237High· 7.8▾ TwilightIn 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() a…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 32dc0042528d385d83bf458e4cf3a49c5110afea < 92b69f6db640dadc0851762ee2e12db99f083cadLinux >= 32dc0042528d385d83bf458e4cf3a49c5110afea < d6d991afe775ab7fcf89523a2502b7ca3be56ffdLinux >= 32dc0042528d385d83bf458e4cf3a49c5110afea < 1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aaLinux >= 32dc0042528d385d83bf458e4cf3a49c5110afea < 5a6bd62f09147b49b31fd19d4eba122cb5f941a1Linux 6.16Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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