{
  "cveId": "CVE-2022-49796",
  "url": "https://patchblox.com/security/cve/CVE-2022-49796",
  "summary": "CVE-2022-49796 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49796, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  tracing: kprobe: Fix potential null-ptr-deref on...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tracing: kprobe: Fix potential null-ptr-deref on trace_array in kprobe_event_gen_test_exit()  When test_gen_kprobe_cmd() failed after kprobe_event_gen_cmd_end(), it will goto delete, which will call kprobe_event_delete() and release the corresponding resource. However, the trace_array in gen_kretprobe_test will point to the invalid resource. Set gen_kretprobe_test to NULL after called kprobe_event_delete() to prevent null-ptr-deref.  BUG: kernel NULL pointer dereference, address: 0000000000000070 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 246 Comm: modprobe Tainted: G        W 6.1.0-rc1-00174-g9522dc5c87da-dirty #248 Hardware name: QEMU Standard PC (i440FX \u002B PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 RIP: 0010:__ftrace_set_clr_event_nolock\u002B0x53/0x1b0 Code: e8 82 26 fc ff 49 8b 1e c7 44 24 0c ea ff ff ff 49 39 de 0f 84 3c 01 00 00 c7 44 24 18 00 00 00 00 e8 61 26 fc ff 48 8b 6b 10 \u003C44\u003E 8b 65 70 4c 8b 6d 18 41 f7 c4 00 02 00 00 75 2f RSP: 0018:ffffc9000159fe00 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88810971d268 RCX: 0000000000000000 RDX: ffff8881080be600 RSI: ffffffff811b48ff RDI: ffff88810971d058 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffc9000159fe58 R11: 0000000000000001 R12: ffffffffa0001064 R13: ffffffffa000106c R14: ffff88810971d238 R15: 0000000000000000 FS:  00007f89eeff6540(0000) GS:ffff88813b600000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000070 CR3: 000000010599e004 CR4: 0000000000330ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  \u003CTASK\u003E  __ftrace_set_clr_event\u002B0x3e/0x60  trace_array_set_clr_event\u002B0x35/0x50  ? 0xffffffffa0000000  kprobe_event_gen_test_exit\u002B0xcd/0x10b [kprobe_event_gen_test]  __x64_sys_delete_module\u002B0x206/0x380  ? lockdep_hardirqs_on_prepare\u002B0xd8/0x190  ? syscall_enter_from_user_mode\u002B0x1c/0x50  do_syscall_64\u002B0x3f/0x90  entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd RIP: 0033:0x7f89eeb061b7",
  "published": "2025-05-01T15:16:02Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00201,
  "epssPercentile": 0.10099,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49796",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49796",
      "released": "2025-05-01T15:16:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49796",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49796",
      "released": "2025-05-01T15:16:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49796",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49796",
      "released": "2025-05-01T15:16:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}