cbcvebase.
CVE-2025-38374
published 2025-07-25

CVE-2025-38374: In the Linux kernel, the following vulnerability has been resolved: optee: ffa: fix sleep in atomic context The OP-TEE driver registers the function…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
4.2th percentile
In the Linux kernel, the following vulnerability has been resolved: optee: ffa: fix sleep in atomic context The OP-TEE driver registers the function notif_callback() for FF-A notifications. However, this function is called in an atomic context leading to errors like this when processing asynchronous notifications: | BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0 | preempt_count: 1, expected: 0 | RCU nest depth: 0, expected: 0 | CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-00019-g657536ebe0aa #13 | Hardware name: linux,dummy-virt (DT) | Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn | Call trace: | show_stack+0x18/0x24 (C) | dump_stack_lvl+0x78/0x90 | dump_stack+0x18/0x24 | __might_resched+0x114/0x170 | __might_sleep+0x48/0x98 | mutex_lock+0x24/0x80 | optee_get_msg_arg+0x7c/0x21c | simple_call_with_arg+0x50/0xc0 | optee_do_bottom_half+0x14/0x20 | notif_callback+0x3c/0x48 | handle_notif_callbacks+0x9c/0xe0 | notif_get_and_handle+0x40/0x88 | generic_exec_single+0x80/0xc0 | smp_call_function_single+0xfc/0x1a0 | notif_pcpu_irq_work_fn+0x2c/0x38 | process_one_work+0x14c/0x2b4 | worker_thread+0x2e4/0x3e0 | kthread+0x13c/0x210 | ret_from_fork+0x10/0x20 Fix this by adding work queue to process the notification in a non-atomic context.

Affected

20 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.37-1 (forky)linux 6.12.37-1 (forky)
linuxlinux
linuxlinux>= d0476a59de064205f4aaa8f7c6d6f32bc28a44d4 < 5f28563f0c6862c99eb115c918421d9b73f137ad5f28563f0c6862c99eb115c918421d9b73f137ad
linuxlinux>= d0476a59de064205f4aaa8f7c6d6f32bc28a44d4 < f27cf15783bd60063c6c97434cbd67ebd91d8db5f27cf15783bd60063c6c97434cbd67ebd91d8db5
linuxlinux>= d0476a59de064205f4aaa8f7c6d6f32bc28a44d4 < 312d02adb959ea199372f375ada06e0186f651e4312d02adb959ea199372f375ada06e0186f651e4
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.37-16.12.37-1
linuxlinux_kernel>= 0 < 6.12.37-16.12.37-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 6.13 < 6.15.66.15.6
linuxlinux_kernel>= 6.8 < 6.12.376.12.37
ubuntulinux-aws
ubuntulinux-aws-6.8
ubuntulinux-gkeop
ubuntulinux-nvidia
ubuntulinux-nvidia-6.8
ubuntulinux-oracle
ubuntulinux-oracle-6.8
ubuntulinux-raspi-realtime
ubuntulinux-realtime

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
ghsa7.5HIGH
osv5.6MEDIUM
vendor_redhat7.5HIGH
vendor_ubuntu5.6MEDIUM
vendor_debian5.5LOW
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