{
  "cveId": "CVE-2022-50654",
  "url": "https://patchblox.com/security/cve/CVE-2022-50654",
  "summary": "CVE-2022-50654 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50654, released December 9, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix panic due to wrong pageattr of im-\u003Eimag...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Fix panic due to wrong pageattr of im-\u003Eimage  In the scenario where livepatch and kretfunc coexist, the pageattr of im-\u003Eimage is rox after arch_prepare_bpf_trampoline in bpf_trampoline_update, and then modify_fentry or register_fentry returns -EAGAIN from bpf_tramp_ftrace_ops_func, the BPF_TRAMP_F_ORIG_STACK flag will be configured, and arch_prepare_bpf_trampoline will be re-executed.  At this time, because the pageattr of im-\u003Eimage is rox, arch_prepare_bpf_trampoline will read and write im-\u003Eimage, which causes a fault. as follows:    insmod livepatch-sample.ko    # samples/livepatch/livepatch-sample.c   bpftrace -e \u0027kretfunc:cmdline_proc_show {}\u0027  BUG: unable to handle page fault for address: ffffffffa0206000 PGD 322d067 P4D 322d067 PUD 322e063 PMD 1297e067 PTE d428061 Oops: 0003 [#1] PREEMPT SMP PTI CPU: 2 PID: 270 Comm: bpftrace Tainted: G            E K    6.1.0 #5 RIP: 0010:arch_prepare_bpf_trampoline\u002B0xed/0x8c0 RSP: 0018:ffffc90001083ad8 EFLAGS: 00010202 RAX: ffffffffa0206000 RBX: 0000000000000020 RCX: 0000000000000000 RDX: ffffffffa0206001 RSI: ffffffffa0206000 RDI: 0000000000000030 RBP: ffffc90001083b70 R08: 0000000000000066 R09: ffff88800f51b400 R10: 000000002e72c6e5 R11: 00000000d0a15080 R12: ffff8880110a68c8 R13: 0000000000000000 R14: ffff88800f51b400 R15: ffffffff814fec10 FS:  00007f87bc0dc780(0000) GS:ffff88803e600000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffa0206000 CR3: 0000000010b70000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: \u003CTASK\u003E  bpf_trampoline_update\u002B0x25a/0x6b0  __bpf_trampoline_link_prog\u002B0x101/0x240  bpf_trampoline_link_prog\u002B0x2d/0x50  bpf_tracing_prog_attach\u002B0x24c/0x530  bpf_raw_tp_link_attach\u002B0x73/0x1d0  __sys_bpf\u002B0x100e/0x2570  __x64_sys_bpf\u002B0x1c/0x30  do_syscall_64\u002B0x5b/0x80  entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd  With this patch, when modify_fentry or register_fentry returns -EAGAIN from bpf_tramp_ftrace_ops_func, the pageattr of im-\u003Eimage will be reset to nx\u002Brw.",
  "published": "2025-12-09T01:16:48Z",
  "severity": "",
  "epss": 0.00197,
  "epssPercentile": 0.09503,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-50654",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50654",
      "released": "2025-12-09T01:16:48Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-50654",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50654",
      "released": "2025-12-09T01:16:48Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2022-50654",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50654",
      "released": "2025-12-09T01:16:48Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}