CVE-2025-71180— counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
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I. Basic Information for CVE-2025-71180
Vulnerability Information
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Vulnerability Title
counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: counter: interrupt-cnt: Drop IRQF_NO_THREAD flag An IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, as CONFIG_PROVE_RAW_LOCK_NESTING warns: ============================= [ BUG: Invalid wait context ] 6.18.0-rc1+git... #1 ----------------------------- some-user-space-process/1251 is trying to lock: (&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter] other info that might help us debug this: context-{2:2} no locks held by some-user-space-process/.... stack backtrace: CPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT Call trace: show_stack (C) dump_stack_lvl dump_stack __lock_acquire lock_acquire _raw_spin_lock_irqsave counter_push_event [counter] interrupt_cnt_isr [interrupt_cnt] __handle_irq_event_percpu handle_irq_event handle_simple_irq handle_irq_desc generic_handle_domain_irq gpio_irq_handler handle_irq_desc generic_handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler el0_interrupt __el0_irq_handler_common el0t_64_irq_handler el0t_64_irq ... and Sebastian correctly points out. Remove IRQF_NO_THREAD as an alternative to switching to raw_spinlock_t, because the latter would limit all potential nested locks to raw_spinlock_t only.
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，该漏洞源于中断处理程序可能同时设置IRQF_NO_THREAD标志并获取自旋锁，可能导致无效的等待上下文。
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-2025-71180
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Same Patch Batch · Linux · 2026-01-31 · 37 CVEs total
| CVE-2026-23019 | net: marvell: prestera: fix NULL dereference on devlink_alloc() failure | |
| CVE-2025-71187 | dmaengine: sh: rz-dmac: fix device leak on probe failure | |
| CVE-2025-71186 | dmaengine: stm32: dmamux: fix device leak on route allocation | |
| CVE-2025-71185 | dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation | |
| CVE-2026-23024 | idpf: fix memory leak of flow steer list on rmmod | |
| CVE-2026-23023 | idpf: fix memory leak in idpf_vport_rel() | |
| CVE-2026-23022 | idpf: fix memory leak in idpf_vc_core_deinit() | |
| CVE-2026-23021 | net: usb: pegasus: fix memory leak in update_eth_regs_async() | |
| CVE-2026-23020 | net: 3com: 3c59x: fix possible null dereference in vortex_probe1() | |
| CVE-2025-71189 | dmaengine: dw: dmamux: fix OF node leak on route allocation failure | |
| CVE-2026-23018 | btrfs: release path before initializing extent tree in btrfs_read_locked_inode() | |
| CVE-2026-23017 | idpf: fix error handling in the init_task on load | |
| CVE-2026-23016 | inet: frags: drop fraglist conntrack references | |
| CVE-2026-23015 | gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths | |
| CVE-2025-71184 | btrfs: fix NULL dereference on root when tracing inode eviction | |
| CVE-2025-71183 | btrfs: always detect conflicting inodes when logging inode refs | |
| CVE-2025-71182 | can: j1939: make j1939_session_activate() fail if device is no longer registered | |
| CVE-2025-71181 | rust_binder: remove spin_lock() in rust_shrink_free_page() | |
| CVE-2026-23031 | can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak | |
| CVE-2026-23039 | drm/gud: fix NULL fb and crtc dereferences on USB disconnect |
Showing top 20 of 37 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-2025-71180
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