Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2025-39683— tracing: Limit access to parser->buffer when trace_get_user failed

EPSS 0.02% · P5

Affected Version Matrix 23

VendorProductVersion RangeStatus
LinuxLinux634684d79733124f7470b226b0f42aada4426b07< b842ef39c2ad6156c13afdec25ecc6792a9b67b9affected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< 41b838420457802f21918df66764b6fbf829d330affected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< 418b448e1d7470da9d4d4797f71782595ee69c49affected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< 58ff8064cb4c7eddac4da1a59da039ead586950aaffected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< d0c68045b8b0f3737ed7bd6b8c83b7887014adeeaffected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< 3079517a5ba80901fe828a06998da64b9b8749beaffected
8c9af478c06bb1ab1422f90d8ecbc53defd44bc3< 6a909ea83f226803ea0e718f6e88613df9234d58affected
24cd31752f47699b89b4b3471155c8e599a1a23aaffected
… +15 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-39683

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
tracing: Limit access to parser->buffer when trace_get_user failed
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser->buffer when trace_get_user failed When the length of the string written to set_ftrace_filter exceeds FTRACE_BUFF_MAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in strsep+0x18c/0x1b0 Read of size 1 at addr ffff0000d00bd5ba by task ash/165 CPU: 1 UID: 0 PID: 165 Comm: ash Not tainted 6.16.0-g6bcdbd62bd56-dirty Hardware name: linux,dummy-virt (DT) Call trace: show_stack+0x34/0x50 (C) dump_stack_lvl+0xa0/0x158 print_address_description.constprop.0+0x88/0x398 print_report+0xb0/0x280 kasan_report+0xa4/0xf0 __asan_report_load1_noabort+0x20/0x30 strsep+0x18c/0x1b0 ftrace_process_regex.isra.0+0x100/0x2d8 ftrace_regex_release+0x484/0x618 __fput+0x364/0xa58 ____fput+0x28/0x40 task_work_run+0x154/0x278 do_notify_resume+0x1f0/0x220 el0_svc+0xec/0xf0 el0t_64_sync_handler+0xa0/0xe8 el0t_64_sync+0x1ac/0x1b0 The reason is that trace_get_user will fail when processing a string longer than FTRACE_BUFF_MAX, but not set the end of parser->buffer to 0. Then an OOB access will be triggered in ftrace_regex_release-> ftrace_process_regex->strsep->strpbrk. We can solve this problem by limiting access to parser->buffer when trace_get_user failed.
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模块在trace_get_user失败时未限制对parser->buffer的访问。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 634684d79733124f7470b226b0f42aada4426b07 ~ b842ef39c2ad6156c13afdec25ecc6792a9b67b9 -
LinuxLinux 5.13 -

II. Public POCs for CVE-2025-39683

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-39683

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-09-05 · 60 CVEs total

CVE-2025-39707drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities
CVE-2025-39725mm/vmscan: fix hwpoisoned large folio handling in shrink_folio_list
CVE-2025-39722crypto: caam - Prevent crash on suspend with iMX8QM / iMX8ULP
CVE-2025-39721crypto: qat - flush misc workqueue during device shutdown
CVE-2025-39720ksmbd: fix refcount leak causing resource not released
CVE-2025-39723netfs: Fix unbuffered write error handling
CVE-2025-39711media: ivsc: Fix crash at shutdown due to missing mei_cldev_disable() calls
CVE-2025-39710media: venus: Add a check for packet size after reading from shared memory
CVE-2025-39709media: venus: protect against spurious interrupts during probe
CVE-2025-39708media: iris: Fix NULL pointer dereference
CVE-2025-39712media: mt9m114: Fix deadlock in get_frame_interval/set_frame_interval
CVE-2025-39706drm/amdkfd: Destroy KFD debugfs after destroy KFD wq
CVE-2025-39705drm/amd/display: fix a Null pointer dereference vulnerability
CVE-2025-39704LoongArch: KVM: Fix stack protector issue in send_ipi_data()
CVE-2025-39703net, hsr: reject HSR frame if skb can't hold tag
CVE-2025-39702ipv6: sr: Fix MAC comparison to be constant-time
CVE-2025-39701ACPI: pfr_update: Fix the driver update version check
CVE-2025-39700mm/damon/ops-common: ignore migration request to invalid nodes
CVE-2025-39699iommu/riscv: prevent NULL deref in iova_to_phys
CVE-2025-39698io_uring/futex: ensure io_futex_wait() cleans up properly on failure

Showing top 20 of 60 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39683

No comments yet

Leave a comment