CVE-2025-39829— trace/fgraph: Fix the warning caused by missing unregister notifier
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I. Basic Information for CVE-2025-39829
Vulnerability Information
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Vulnerability Title
trace/fgraph: Fix the warning caused by missing unregister notifier
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: trace/fgraph: Fix the warning caused by missing unregister notifier This warning was triggered during testing on v6.16: notifier callback ftrace_suspend_notifier_call already registered WARNING: CPU: 2 PID: 86 at kernel/notifier.c:23 notifier_chain_register+0x44/0xb0 ... Call Trace: <TASK> blocking_notifier_chain_register+0x34/0x60 register_ftrace_graph+0x330/0x410 ftrace_profile_write+0x1e9/0x340 vfs_write+0xf8/0x420 ? filp_flush+0x8a/0xa0 ? filp_close+0x1f/0x30 ? do_dup2+0xaf/0x160 ksys_write+0x65/0xe0 do_syscall_64+0xa4/0x260 entry_SYSCALL_64_after_hwframe+0x77/0x7f When writing to the function_profile_enabled interface, the notifier was not unregistered after start_graph_tracing failed, causing a warning the next time function_profile_enabled was written. Fixed by adding unregister_pm_notifier in the exception path.
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，该漏洞源于未在异常路径中注销pm_notifier，可能导致重复注册警告。
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-2025-39829
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Same Patch Batch · Linux · 2025-09-16 · 115 CVEs total
| CVE-2022-50340 | media: vimc: Fix wrong function called when vimc_init() fails | |
| CVE-2023-53307 | rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails | |
| CVE-2023-53305 | Bluetooth: L2CAP: Fix use-after-free | |
| CVE-2023-53304 | netfilter: nft_set_rbtree: fix overlap expiration walk | |
| CVE-2022-50351 | cifs: Fix xid leak in cifs_create() | |
| CVE-2022-50352 | net: hns: fix possible memory leak in hnae_ae_register() | |
| CVE-2022-50350 | scsi: target: iscsi: Fix a race condition between login_work and the login thread | |
| CVE-2022-50348 | nfsd: Fix a memory leak in an error handling path | |
| CVE-2022-50349 | misc: tifm: fix possible memory leak in tifm_7xx1_switch_media() | |
| CVE-2022-50347 | mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() | |
| CVE-2022-50346 | ext4: init quota for 'old.inode' in 'ext4_rename' | |
| CVE-2022-50343 | rapidio: fix possible name leaks when rio_add_device() fails | |
| CVE-2022-50344 | ext4: fix null-ptr-deref in ext4_write_info | |
| CVE-2022-50342 | floppy: Fix memory leak in do_floppy_init() | |
| CVE-2022-50341 | cifs: fix oops during encryption | |
| CVE-2025-39826 | net: rose: convert 'use' field to refcount_t | |
| CVE-2025-39830 | net/mlx5: HWS, Fix memory leak in hws_pool_buddy_init error path | |
| CVE-2025-39828 | atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control(). | |
| CVE-2025-39827 | net: rose: include node references in rose_neigh refcount | |
| CVE-2025-39831 | fbnic: Move phylink resume out of service_task and into open/close |
Showing top 20 of 115 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-2025-39829
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