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AJvYcCVSCdiy5UtHVqO0LVkDe3umZvMWCSnL1eDNzC/3oGyLQ8LzC1UM/YTZSI0xthdhB0s/tuof3JAckQuNyd8idw==@vger.kernel.org X-Gm-Message-State: AOJu0Ywds0m7HNVudCA6omM0B6ZagLoWtMyfz0GTHEq7Htod+oHgDg6Z W6VYvfcUTIPFDLaRYTSnN+25tt+iFesRSt/uPEsi1+j030J1xIfXbN7xDYpUj+6IuR2zMIUT2qA qkk8hQe841JpU8Or2QaDiNjTNAUUpPgG1U4nvVHyHurPDVbzH0ZKCa89727o= Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2108:b0:674:c966:fb27 with SMTP id 006d021491bc7-679c44ead62mr6864775eaf.52.1771959383480; Tue, 24 Feb 2026 10:56:23 -0800 (PST) Date: Tue, 24 Feb 2026 10:56:23 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <699df457.050a0220.131eeb.0009.GAE@google.com> Subject: [syzbot] [usb?] BUG: sleeping function called from invalid context in usb_tx_block From: syzbot To: libertas-dev@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8bf22c33e7a1 Merge tag 'net-7.0-rc1' of git://git.kernel.o.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=127b9722580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1ff39736314a9939 dashboard link: https://syzkaller.appspot.com/bug?extid=74afbb6355826ffc2239 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1561fffa580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1031795a580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0e19c10e1a0e/disk-8bf22c33.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8f3209ea7fd5/vmlinux-8bf22c33.xz kernel image: https://storage.googleapis.com/syzbot-assets/9be7f93d0a22/bzImage-8bf22c33.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+74afbb6355826ffc2239@syzkaller.appspotmail.com usb8xxx: URB in failure status: -2 BUG: sleeping function called from invalid context at drivers/usb/core/urb.c:706 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 no locks held by swapper/1/0. irq event stamp: 328389 hardirqs last enabled at (328388): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (328388): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (328389): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (328389): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (328372): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (328372): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (328372): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (328385): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (328385): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (328385): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 __might_resched.cold+0x1ec/0x232 kernel/sched/core.c:8884 usb_kill_urb+0x8e/0x320 drivers/usb/core/urb.c:706 usb_tx_block+0x91/0x320 drivers/net/wireless/marvell/libertas/if_usb.c:429 if_usb_send_fw_pkt.isra.0+0x2e4/0x550 drivers/net/wireless/marvell/libertas/if_usb.c:366 if_usb_receive_fwload+0x5d3/0x780 drivers/net/wireless/marvell/libertas/if_usb.c:592 __usb_hcd_giveback_urb+0x38d/0x610 drivers/usb/core/hcd.c:1657 usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741 dummy_timer+0xd85/0x3670 drivers/usb/gadget/udc/dummy_hcd.c:1995 __run_hrtimer kernel/time/hrtimer.c:1785 [inline] __hrtimer_run_queues+0x50e/0xa70 kernel/time/hrtimer.c:1849 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1866 handle_softirqs+0x1de/0x9d0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:63 Code: be b1 01 e9 13 e8 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 f1 1d 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc9000013fe00 EFLAGS: 00000242 RAX: 00000000000502bf RBX: ffff8881022a1d00 RCX: ffffffff876888d5 RDX: 0000000000000000 RSI: ffffffff8901d71b RDI: ffffffff87afa420 RBP: 0000000000000001 R08: 0000000000000001 R09: ffffed103eae6725 R10: ffff8881f573392b R11: 0000000000000000 R12: ffffed10204543a0 R13: 0000000000000001 R14: ffffffff8aefe2d0 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:73 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:767 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x35b/0x4b0 kernel/sched/idle.c:332 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x148 BUG: scheduling while atomic: swapper/1/0/0x00000102 no locks held by swapper/1/0. Modules linked in: irq event stamp: 328389 hardirqs last enabled at (328388): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (328388): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (328389): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (328389): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (328372): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (328372): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (328372): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (328385): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (328385): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (328385): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [<0000000000000000>] 0x0 ---------------- Code disassembly (best guess): 0: be b1 01 e9 13 mov $0x13e901b1,%esi 5: e8 02 00 0f 1f call 0x1f0f000c a: 00 90 90 90 90 90 add %dl,-0x6f6f6f70(%rax) 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d d3 f1 1d 00 verw 0x1df1d3(%rip) # 0x1df1fb 28: fb sti 29: f4 hlt * 2a: c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 66 90 xchg %ax,%ax 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop --- This report is generated by a bot. 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