The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - powerpc/kprobes: Fix null pointer reference in arch_prepare_kprobe() I found a null pointer reference in     arch_prepare_kprobe(): # echo 'p cmdline_proc_show' > kprobe_events # echo 'p cmdline_proc_show+16' >>     kprobe_events Kernel attempted to read user page (0) - exploit attempt? (uid: 0) BUG: Kernel NULL pointer     dereference on read at 0x00000000 Faulting instruction address: 0xc000000000050bfc Oops: Kernel access of     bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: CPU: 0     PID: 122 Comm: sh Not tainted 6.0.0-rc3-00007-gdcf8e5633e2e #10 NIP: c000000000050bfc LR: c000000000050bec     CTR: 0000000000005bdc REGS: c0000000348475b0 TRAP: 0300 Not tainted (6.0.0-rc3-00007-gdcf8e5633e2e) MSR:
    9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 88002444 XER: 20040006 CFAR: c00000000022d100 DAR:
    0000000000000000 DSISR: 40000000 IRQMASK: 0 ... NIP arch_prepare_kprobe+0x10c/0x2d0 LR     arch_prepare_kprobe+0xfc/0x2d0 Call Trace: 0xc0000000012f77a0 (unreliable) register_kprobe+0x3c0/0x7a0
    __register_trace_kprobe+0x140/0x1a0 __trace_kprobe_create+0x794/0x1040 trace_probe_create+0xc4/0xe0     create_or_delete_trace_kprobe+0x2c/0x80 trace_parse_run_command+0xf0/0x210 probes_write+0x20/0x40     vfs_write+0xfc/0x450 ksys_write+0x84/0x140 system_call_exception+0x17c/0x3a0     system_call_vectored_common+0xe8/0x278 --- interrupt: 3000 at 0x7fffa5682de0 NIP: 00007fffa5682de0 LR:
    0000000000000000 CTR: 0000000000000000 REGS: c000000034847e80 TRAP: 3000 Not tainted     (6.0.0-rc3-00007-gdcf8e5633e2e) MSR: 900000000280f033 <SF,HV,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE> CR: 44002408     XER: 00000000 The address being probed has some special: cmdline_proc_show: Probe based on ftrace     cmdline_proc_show+16: Probe for the next instruction at the ftrace location The ftrace-based kprobe does     not generate kprobe::ainsn::insn, it gets set to NULL. In arch_prepare_kprobe() it will check for: ...
    prev = get_kprobe(p->addr - 1); preempt_enable_no_resched(); if (prev &&     ppc_inst_prefixed(ppc_inst_read(prev->ainsn.insn))) { ... If prev is based on ftrace,     'ppc_inst_read(prev->ainsn.insn)' will occur with a null pointer reference. At this point prev->addr will     not be a prefixed instruction, so the check can be skipped. Check if prev is ftrace-based kprobe before     reading 'prev->ainsn.insn' to fix this problem. [mpe: Trim oops] (CVE-2022-50635)

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Linux Distros Unpatched Vulnerability : CVE-2022-50635

medium Nessus Plugin ID 277900

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.7 Jan 21, 2026, 10:50 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601211050
Version 1.6 Jan 15, 2026, 2:04 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601151404
Version 1.5 Jan 10, 2026, 4:14 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601100414
Version 1.4 Dec 22, 2025, 9:15 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512222115
Version 1.3 Dec 12, 2025, 12:11 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512120011
Version 1.2 Dec 10, 2025, 9:29 AM Detection (updated detection logic) New Plugin metadata Plugin Feed: 202512100929