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CVE-2026-68361— hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop

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基金会开源的一个操作系统内核。 Linux kernel 5.11版本存在安全漏洞，该漏洞源于hid_hw_stop()未停止设备IO，导致corsairpsu_probe()中出现竞态条件，可能造成释放后重用。

AI Predicted 7.8 Difficulty: Hard EPSS 0.19% · P9

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d115b51e0e567199c821fc39e13b6af7e78f247d< 45dcd8a63069197f64dbda30509b9e224b74c0d8 affected
d115b51e0e567199c821fc39e13b6af7e78f247d< c80ed058f31bb0251a748034d69feb376741dcb2 affected
d115b51e0e567199c821fc39e13b6af7e78f247d< e6e1e0f3050d1a1a3ea1c9d6253363e87fdad67a affected
d115b51e0e567199c821fc39e13b6af7e78f247d< c0aae8d24f5e52d6910f97d59bc624e131f3ae1a affected
d115b51e0e567199c821fc39e13b6af7e78f247d< ec477af3a7e8d3964e62fd24ef01cdebb96b8e4e affected
d115b51e0e567199c821fc39e13b6af7e78f247d< bb25bd980f2d9bd34558e1b1d16636e4945baf14 affected
d115b51e0e567199c821fc39e13b6af7e78f247d< 9ab8656548cd737b98d0b19c4253aff8d68e97f4 affected
5.11 affected
… +8 more rows
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I. Basic Information for CVE-2026-68361

Vulnerability Information
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Vulnerability Title
hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop hid_hw_stop() does not stop the device IO. This results in a race condition between hid_input_report() and the point immediately following the execution of hid_device_io_start() within corsairpsu_probe(). If the probe operation fails after "io start" has been initiated, this race condition will result in a uaf vulnerability [1]. CPU0 CPU1 ==== ==== corsairpsu_probe() hid_device_io_start() ... unlock driver_input_lock hid_hw_stop() kfree(hidraw) __hid_input_report() ... acquire driver_input_lock hid_report_raw_event() hidraw_report_event() ... access hidraw's list_lock // trigger uaf Consequently, when corsairpsu_probe() fails and hid_hw_stop() needs to be executed, the io_started flag is first cleared while holding the driver_input_lock to prevent potential race conditions involving input reports. [1] BUG: KASAN: slab-use-after-free in rt_spin_lock+0x83/0x400 kernel/locking/spinlock_rt.c:56 Call Trace: hidraw_report_event+0x5d/0x3a0 drivers/hid/hidraw.c:577 hid_report_raw_event+0x311/0x1730 drivers/hid/hid-core.c:2076 __hid_input_report drivers/hid/hid-core.c:2152 [inline] hid_input_report+0x44e/0x580 drivers/hid/hid-core.c:2174 hid_irq_in+0x47e/0x6d0 drivers/hid/usbhid/hid-core.c:286 __usb_hcd_giveback_urb+0x3b3/0x5e0 drivers/usb/core/hcd.c:1657 dummy_timer+0x8a9/0x47d0 drivers/usb/gadget/udc/dummy_hcd.c:2005 Allocated by task 10: hidraw_connect+0x57/0x430 drivers/hid/hidraw.c:606 hid_connect+0x5bf/0x19d0 drivers/hid/hid-core.c:2277 hid_hw_start+0xa8/0x120 drivers/hid/hid-core.c:2387 corsairpsu_probe+0xd9/0x3c0 drivers/hwmon/corsair-psu.c:782 Freed by task 10: hidraw_disconnect+0x4f/0x60 drivers/hid/hidraw.c:662 hid_disconnect drivers/hid/hid-core.c:2362 [inline] hid_hw_stop+0x101/0x1e0 drivers/hid/hid-core.c:2407 corsairpsu_probe+0x327/0x3c0 drivers/hwmon/corsair-psu.c:826 Fix the problem by calling hid_device_io_stop() before calling hid_hw_stop(). [groeck: Updated subject and description; call hid_device_io_stop() only if IO has been started]
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基金会开源的一个操作系统内核。 Linux kernel 5.11版本存在安全漏洞，该漏洞源于hid_hw_stop()未停止设备IO，导致corsairpsu_probe()中出现竞态条件，可能造成释放后重用。
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 d115b51e0e567199c821fc39e13b6af7e78f247d ~ 45dcd8a63069197f64dbda30509b9e224b74c0d8 -
Linux Linux 5.11 -

II. Public POCs for CVE-2026-68361

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III. Intelligence Information for CVE-2026-68361

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Patches & Fixes for CVE-2026-68361 (6)

Same Patch Batch · Linux · 2026-08-10 · 344 CVEs total

CVE-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68161 9.8 CRITICAL sctp: close UDP tunnel sockets during netns teardown
CVE-2026-68160 9.8 CRITICAL ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68159 9.8 CRITICAL libceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE
CVE-2026-68127 9.8 CRITICAL ila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
CVE-2026-68144 9.8 CRITICAL phonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-68137 9.8 CRITICAL net/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-68136 9.8 CRITICAL net: gro: fix double aggregation of flush-marked skbs
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68156 9.8 CRITICAL libceph: refresh auth->authorizer_buf{,_len} after authorizer update
CVE-2026-68158 9.8 CRITICAL libceph: Fix multiplication overflow in decode_new_up_state_weight()
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
CVE-2026-68154 9.8 CRITICAL libceph: reject zero bucket types in crush_decode
CVE-2026-68124 9.6 CRITICAL mctp: serial: handle zero-length frames to prevent rx buffer overflow

Showing top 20 of 344 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-68361

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