CVE-2026-99219None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · 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
0.2%
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.
Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 753d5cba113a52cb155428f4ea93a4b0148c4bf1Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 0e5ff07be834abaf4280e1dca7f9591e339d0960Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e2e6fb972bfec4a0551bc7c185bdb17f78f94997Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 8932e5a4df110a25578728526bb5a3dbc849d8a2Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 7271c064dd60d4456c5b90da757acd9420d06697Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < d97dba9ff13987d1fc415408557a54adde980311Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e1f339ff3b83857b93baf8b88186275a413d445eLinux 5.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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