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

  - In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to     other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m     64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: [ 444.364395] WARNING: CPU:
    0 PID: 104 at kernel/smp.c:775 smp_call_function_many_cond+0x42c/0x436 [ 444.364515] Modules linked in: [     444.364657] CPU: 0 PID: 104 Comm: perf-exec Not tainted 6.6.0-rc6-00051-g391df82e8ec3-dirty #73 [     444.364771] Hardware name: riscv-virtio,qemu (DT) [ 444.364868] epc :
    smp_call_function_many_cond+0x42c/0x436 [ 444.364917] ra : on_each_cpu_cond_mask+0x20/0x32 [ 444.364948]     epc : ffffffff8009f9e0 ra : ffffffff8009fa5a sp : ff20000000003800 [ 444.364966] gp : ffffffff81500aa0 tp     : ff60000002b83000 t0 : ff200000000038c0 [ 444.364982] t1 : ffffffff815021f0 t2 : 000000000000001f s0 :
    ff200000000038b0 [ 444.364998] s1 : ff60000002c54d98 a0 : ff60000002a73940 a1 : 0000000000000000 [     444.365013] a2 : 0000000000000000 a3 : 0000000000000003 a4 : 0000000000000100 [ 444.365029] a5 :
    0000000000010100 a6 : 0000000000f00000 a7 : 0000000000000000 [ 444.365044] s2 : 0000000000000000 s3 :
    ffffffffffffffff s4 : ff60000002c54d98 [ 444.365060] s5 : ffffffff81539610 s6 : ffffffff80c20c48 s7 :
    0000000000000000 [ 444.365075] s8 : 0000000000000000 s9 : 0000000000000001 s10: 0000000000000001 [     444.365090] s11: ffffffff80099394 t3 : 0000000000000003 t4 : 00000000eac0c6e6 [ 444.365104] t5 :
    0000000400000000 t6 : ff60000002e010d0 [ 444.365120] status: 0000000200000100 badaddr: 0000000000000000     cause: 0000000000000003 [ 444.365226] [<ffffffff8009f9e0>] smp_call_function_many_cond+0x42c/0x436 [     444.365295] [<ffffffff8009fa5a>] on_each_cpu_cond_mask+0x20/0x32 [ 444.365311] [<ffffffff806e90dc>]     pmu_sbi_ctr_start+0x7a/0xaa [ 444.365327] [<ffffffff806e880c>] riscv_pmu_start+0x48/0x66 [ 444.365339]     [<ffffffff8012111a>] perf_adjust_freq_unthr_context+0x196/0x1ac [ 444.365356] [<ffffffff801237aa>]     perf_event_task_tick+0x78/0x8c [ 444.365368] [<ffffffff8003faf4>] scheduler_tick+0xe6/0x25e [ 444.365383]     [<ffffffff8008a042>] update_process_times+0x80/0x96 [ 444.365398] [<ffffffff800991ec>]     tick_sched_handle+0x26/0x52 [ 444.365410] [<ffffffff800993e4>] tick_sched_timer+0x50/0x98 [ 444.365422]     [<ffffffff8008a6aa>] __hrtimer_run_queues+0x126/0x18a [ 444.365433] [<ffffffff8008b350>]     hrtimer_interrupt+0xce/0x1da [ 444.365444] [<ffffffff806cdc60>] riscv_timer_interrupt+0x30/0x3a [     444.365457] [<ffffffff8006afa6>] handle_percpu_devid_irq+0x80/0x114 [ 444.365470] [<ffffffff80065b82>]     generic_handle_domain_irq+0x1c/0x2a [ 444.365483] [<ffffffff8045faec>] riscv_intc_irq+0x2e/0x46 [     444.365497] [<ffffffff808a9c62>] handle_riscv_irq+0x4a/0x74 [ 444.365521] [<ffffffff808aa760>]     do_irq+0x7c/0x7e [ 444.365796] ---[ end trace 0000000000000000 ]--- That's because the fix in commit     3fec323339a4 (drivers: perf: Fix panic in riscv SBI mmap support) was wrong since there is no need to     broadcast to other cpus when starting a counter, that's only needed in mmap when the counters could have     already been started on other cpus, so simply remove this broadcast. (CVE-2023-52839)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
244394	Linux Distros Unpatched Vulnerability : CVE-2023-52839	Nessus	Misc.	8/6/2025	7/17/2026	low
239342	TencentOS Server 4: kernel (TSSA-2024:0981)	Nessus	Tencent Local Security Checks	6/16/2025	12/4/2025	high

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