{"id":"CVE-2026-99219","title":"ftrace: Initialize modname and offset in print_rec()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Initialize modname and offset in print_rec()\n\nprint_rec() leaves 'modname' and 'offset' uninitialized and\nkallsyms_lookup() only sets them on success. When the …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 753d5cba113a52cb155428f4ea93a4b0148c4bf1","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 0e5ff07be834abaf4280e1dca7f9591e339d0960","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e2e6fb972bfec4a0551bc7c185bdb17f78f94997","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 8932e5a4df110a25578728526bb5a3dbc849d8a2","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 7271c064dd60d4456c5b90da757acd9420d06697","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < d97dba9ff13987d1fc415408557a54adde980311","Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e1f339ff3b83857b93baf8b88186275a413d445e","Linux 5.19"],"published":"2026-11-02","updated":"2026-11-03","sourceUpdated":"2026-11-03T19:12:54.203Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99219","references":[{"url":"https://git.kernel.org/stable/c/753d5cba113a52cb155428f4ea93a4b0148c4bf1"},{"url":"https://git.kernel.org/stable/c/0e5ff07be834abaf4280e1dca7f9591e339d0960"},{"url":"https://git.kernel.org/stable/c/e2e6fb972bfec4a0551bc7c185bdb17f78f94997"},{"url":"https://git.kernel.org/stable/c/8932e5a4df110a25578728526bb5a3dbc849d8a2"},{"url":"https://git.kernel.org/stable/c/7271c064dd60d4456c5b90da757acd9420d06697"},{"url":"https://git.kernel.org/stable/c/d97dba9ff13987d1fc415408557a54adde980311"},{"url":"https://git.kernel.org/stable/c/e1f339ff3b83857b93baf8b88186275a413d445e"}],"tags":["cve.org"],"epss":0.00173,"epssPercentile":0.0677,"ingestedAt":"2026-11-05T20:33:06.380Z","slug":"CVE-2026-99219","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Initialize modname and offset in print_rec()\n\nprint_rec() leaves 'modname' and 'offset' uninitialized and\nkallsyms_lookup() only sets them on success. When the lookup fails like\nwhen a module is being loaded or unloaded, 'modname' holds a garbage\nvalue, passes the 'if (modname)' check, and is dereferenced by\nseq_printf().\n\n  Oops: general protection fault\n  RIP: 0010:string+0x48/0xe0\n  Call Trace:\n   vsnprintf+0x1f5/0x650\n   seq_printf+0x8e/0xb0\n   print_rec+0x6c/0xc0\n   t_show+0x4c/0x440\n   seq_read_iter+0x119/0x480\n\nThis can be triggered by reading available_filter_functions while a\nmodule is being loaded or unloaded.\n\nInitialize both variables so a failed lookup skips the module name.\n\n## Affected\n\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 753d5cba113a52cb155428f4ea93a4b0148c4bf1`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 0e5ff07be834abaf4280e1dca7f9591e339d0960`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e2e6fb972bfec4a0551bc7c185bdb17f78f94997`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 8932e5a4df110a25578728526bb5a3dbc849d8a2`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < 7271c064dd60d4456c5b90da757acd9420d06697`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < d97dba9ff13987d1fc415408557a54adde980311`\n- `Linux >= b39181f7c6907dc66ff937b74758671fa6ba430c < e1f339ff3b83857b93baf8b88186275a413d445e`\n- `Linux 5.19`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}