CVE-2026-99219
In the Linux kernel, the following vulnerability has been resolved:
ftrace: Initialize modname and offset in print_rec()
print_rec() leaves 'modname' and 'offset' uninitialized and kallsyms_lookup() only sets them on success. When the lookup fails like when a module is being loaded or unloaded, 'modname' holds a garbage value, passes the 'if (modname)' check, and is dereferenced by seq_printf().
Oops: general protection fault RIP: 0010:string+0x48/0xe0 Call Trace: vsnprintf+0x1f5/0x650 seq_printf+0x8e/0xb0 print_rec+0x6c/0xc0 t_show+0x4c/0x440 seq_read_iter+0x119/0x480
This can be triggered by reading available_filter_functions while a module is being loaded or unloaded.
Initialize both variables so a failed lookup skips the module name.
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The sources do not list affected products or versions for this vulnerability yet.
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Published
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Collected
First seen by Baba Yaga Security