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CVE-2025-71181— rust_binder: remove spin_lock() in rust_shrink_free_page()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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rust_shrink_free_page函数中未移除自旋锁，可能导致递归锁定。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux eafedbc7c050c44744fbdf80bdf3315e860b7513< 30a98c97f7874031f2e1de19c777ce011143cba4 affected
eafedbc7c050c44744fbdf80bdf3315e860b7513< 361e0ff456a8daf9753c18030533256e4133ce7a affected
6.18 affected
< 6.18 unaffected
6.18.6≤ 6.18.* unaffected
6.19≤ * unaffected
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I. Basic Information for CVE-2025-71181

Vulnerability Information
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Vulnerability Title
rust_binder: remove spin_lock() in rust_shrink_free_page()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rust_binder: remove spin_lock() in rust_shrink_free_page() When forward-porting Rust Binder to 6.18, I neglected to take commit fb56fdf8b9a2 ("mm/list_lru: split the lock to per-cgroup scope") into account, and apparently I did not end up running the shrinker callback when I sanity tested the driver before submission. This leads to crashes like the following: ============================================ WARNING: possible recursive locking detected 6.18.0-mainline-maybe-dirty #1 Tainted: G IO -------------------------------------------- kswapd0/68 is trying to acquire lock: ffff956000fa18b0 (&l->lock){+.+.}-{2:2}, at: lock_list_lru_of_memcg+0x128/0x230 but task is already holding lock: ffff956000fa18b0 (&l->lock){+.+.}-{2:2}, at: rust_helper_spin_lock+0xd/0x20 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&l->lock); lock(&l->lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by kswapd0/68: #0: ffffffff90d2e260 (fs_reclaim){+.+.}-{0:0}, at: kswapd+0x597/0x1160 #1: ffff956000fa18b0 (&l->lock){+.+.}-{2:2}, at: rust_helper_spin_lock+0xd/0x20 #2: ffffffff90cf3680 (rcu_read_lock){....}-{1:2}, at: lock_list_lru_of_memcg+0x2d/0x230 To fix this, remove the spin_lock() call from rust_shrink_free_page().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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rust_shrink_free_page函数中未移除自旋锁，可能导致递归锁定。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux eafedbc7c050c44744fbdf80bdf3315e860b7513 ~ 30a98c97f7874031f2e1de19c777ce011143cba4 -
Linux Linux 6.18 -

II. Public POCs for CVE-2025-71181

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III. Intelligence Information for CVE-2025-71181

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Same Patch Batch · Linux · 2026-01-31 · 37 CVEs total

CVE-2025-71183 9.1 CRITICAL btrfs: always detect conflicting inodes when logging inode refs
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-2025-71182 can: j1939: make j1939_session_activate() fail if device is no longer registered
CVE-2025-71180 counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
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 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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