In the Linux kernel, the following vulnerability has been resolved: tracing/osnoise: Do not unregister events twice Nicolas reported that using: # trace-cmd record -e all -M 10 -p osnoise --poll Resulted in the following kernel warning: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1217 at kernel/tracepoint.c:404 tracepoint_probe_unregister+0x280/0x370 [...] CPU: 0 PID: 1217 Comm: trace-cmd Not tainted 5.17.0-rc6-next-20220307-nico+ #19 RIP: 0010:tracepoint_probe_unregister+0x280/0x370 [...] CR2: 00007ff919b29497 CR3: 0000000109da4005 CR4: 0000000000170ef0 Call Trace: <TASK> osnoise_workload_stop+0x36/0x90 tracing_set_tracer+0x108/0x260 tracing_set_trace_write+0x94/0xd0 ? __check_object_size.part.0+0x10a/0x150 ? selinux_file_permission+0x104/0x150 vfs_write+0xb5/0x290 ksys_write+0x5f/0xe0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff919a18127 [...] ---[ end trace 0000000000000000 ]--- The warning complains about an attempt to unregister an unregistered tracepoint. This happens on trace-cmd because it first stops tracing, and then switches the tracer to nop. Which is equivalent to: # cd /sys/kernel/tracing/ # echo osnoise > current_tracer # echo 0 > tracing_on # echo nop > current_tracer The osnoise tracer stops the workload when no trace instance is actually collecting data. This can be caused both by disabling tracing or disabling the tracer itself. To avoid unregistering events twice, use the existing trace_osnoise_callback_enabled variable to check if the events (and the workload) are actually active before trying to deactivate them.

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: tracing/osnoise: Do not unregister     events twice Nicolas reported that using: # trace-cmd record -e all -M 10 -p osnoise --poll Resulted in     the following kernel warning: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1217 at     kernel/tracepoint.c:404 tracepoint_probe_unregister+0x280/0x370 [...] CPU: 0 PID: 1217 Comm: trace-cmd Not     tainted 5.17.0-rc6-next-20220307-nico+ #19 RIP: 0010:tracepoint_probe_unregister+0x280/0x370 [...] CR2:
    00007ff919b29497 CR3: 0000000109da4005 CR4: 0000000000170ef0 Call Trace: <TASK>     osnoise_workload_stop+0x36/0x90 tracing_set_tracer+0x108/0x260 tracing_set_trace_write+0x94/0xd0 ?
    __check_object_size.part.0+0x10a/0x150 ? selinux_file_permission+0x104/0x150 vfs_write+0xb5/0x290     ksys_write+0x5f/0xe0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP:
    0033:0x7ff919a18127 [...] ---[ end trace 0000000000000000 ]--- The warning complains about an attempt to     unregister an unregistered tracepoint. This happens on trace-cmd because it first stops tracing, and then     switches the tracer to nop. Which is equivalent to: # cd /sys/kernel/tracing/ # echo osnoise >     current_tracer # echo 0 > tracing_on # echo nop > current_tracer The osnoise tracer stops the workload     when no trace instance is actually collecting data. This can be caused both by disabling tracing or     disabling the tracer itself. To avoid unregistering events twice, use the existing     trace_osnoise_callback_enabled variable to check if the events (and the workload) are actually active     before trying to deactivate them. (CVE-2022-48848)

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

ID	Name	Product	Family	Severity
225224	Linux Distros Unpatched Vulnerability : CVE-2022-48848	Nessus	Misc.	high
209785	EulerOS Virtualization 2.12.0 : kernel (EulerOS-SA-2024-2781)	Nessus	Huawei Local Security Checks	high
209777	EulerOS Virtualization 2.12.1 : kernel (EulerOS-SA-2024-2763)	Nessus	Huawei Local Security Checks	high
208351	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-2519)	Nessus	Huawei Local Security Checks	high
208330	EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-2544)	Nessus	Huawei Local Security Checks	high

Detections

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CVE-2022-48848

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Tenable Plugins

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