CVE-2022-48848— tracing/osnoise: Do not unregister events twice
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I. Basic Information for CVE-2022-48848
Vulnerability Information
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Vulnerability Title
tracing/osnoise: Do not unregister events twice
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于tracing/osnoise模块中发现重复注销事件问题。在使用trace-cmd时，可能会导致尝试注销未注册的tracepoint。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-48848
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Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total
| CVE-2022-48831 | ima: fix reference leak in asymmetric_verify() | |
| CVE-2022-48825 | scsi: qedf: Add stag_work to all the vports | |
| CVE-2022-48821 | misc: fastrpc: avoid double fput() on failed usercopy | |
| CVE-2022-48819 | tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case | |
| CVE-2022-48820 | phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable() | |
| CVE-2022-48818 | net: dsa: mv88e6xxx: don't use devres for mdiobus | |
| CVE-2022-48817 | net: dsa: ar9331: register the mdiobus under devres | |
| CVE-2022-48822 | usb: f_fs: Fix use-after-free for epfile | |
| CVE-2022-48828 | NFSD: Fix ia_size underflow | |
| CVE-2022-48830 | can: isotp: fix potential CAN frame reception race in isotp_rcv() | |
| CVE-2022-48829 | NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes | |
| CVE-2022-48832 | audit: don't deref the syscall args when checking the openat2 open_how::flags | |
| CVE-2022-48834 | usb: usbtmc: Fix bug in pipe direction for control transfers | |
| CVE-2022-48833 | btrfs: skip reserved bytes warning on unmount after log cleanup failure | |
| CVE-2022-48835 | scsi: mpt3sas: Page fault in reply q processing | |
| CVE-2022-48837 | usb: gadget: rndis: prevent integer overflow in rndis_set_response() | |
| CVE-2022-48836 | Input: aiptek - properly check endpoint type | |
| CVE-2022-48838 | usb: gadget: Fix use-after-free bug by not setting udc->dev.driver | |
| CVE-2022-48839 | net/packet: fix slab-out-of-bounds access in packet_recvmsg() | |
| CVE-2022-48840 | iavf: Fix hang during reboot/shutdown |
Showing top 20 of 98 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2022-48848
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