cve-2026-99219

osv_linux
Description

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.

Timeline
Published
unknown
Last Modified
unknown
CVSS Details

CVSS details not available.

Affected Products

No product information available.

References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "affected": [
    {
      "database_specific": {
        "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-99219.json"
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              "fixed": "0e5ff07be834abaf4280e1dca7f9591e339d0960"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
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      "database_specific": {
        "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-99219.json"
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      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.0"
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          "type": "ECOSYSTEM"
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  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99219.json"
  },
  "details": "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 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.",
  "id": "CVE-2026-99219",
  "modified": "2026-11-05T02:31:06.846662371Z",
  "published": "2026-11-02T16:06:31.529Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e5ff07be834abaf4280e1dca7f9591e339d0960"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7271c064dd60d4456c5b90da757acd9420d06697"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/753d5cba113a52cb155428f4ea93a4b0148c4bf1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8932e5a4df110a25578728526bb5a3dbc849d8a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d97dba9ff13987d1fc415408557a54adde980311"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1f339ff3b83857b93baf8b88186275a413d445e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2e6fb972bfec4a0551bc7c185bdb17f78f94997"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99219.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99219"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "ftrace: Initialize modname and offset in print_rec()"
}
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