Description

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.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  7.8 HIGH

Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4	Patch
https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4	Patch
https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9	Patch
https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information	NIST

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Change History

3 change records found show changes

CVE Modified by CVE 11/21/2024 2:34:12 AM

Action	Type	Old Value	New Value
Added	Reference		https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4
Added	Reference		https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9

Initial Analysis by NIST 7/24/2024 12:43:54 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST NVD-CWE-noinfo
Added	CPE Configuration		OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.15
Changed	Reference Type	https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4 No Types Assigned	https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9 No Types Assigned	https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9 Patch

New CVE Received from kernel.org 7/16/2024 9:15:12 AM

Action	Type	Old Value	New Value
Added	Description		Record truncated, showing 500 of 1659 characters. View Entire Change Record 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_unregiste
Added	Reference		kernel.org https://git.kernel.org/stable/c/4e10787d18379d9b296290c2288097feddef16d4 [No types assigned]
Added	Reference		kernel.org https://git.kernel.org/stable/c/f0cfe17bcc1dd2f0872966b554a148e888833ee9 [No types assigned]