watchdog: BUG: soft lockup - CPU#1 stuck for 33s! [syz-executor.4:9381] Modules linked in: irq event stamp: 462 hardirqs last enabled at (461): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (461): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (462): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs last disabled at (462): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs last enabled at (452): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (450): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 CPU: 1 PID: 9381 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 sp : ffff80009fc87880 x29: ffff80009fc87880 x28: 1ffff00013f90f1c x27: ffff700013f90f18 x26: 0000000000000000 x25: ffff80008044e8ec x24: 0000000000000000 x23: 0000000000000100 x22: ffff80009fc878e8 x21: 0000000000000000 x20: ffff80008f0a13c0 x19: 0000000000000000 x18: 00000000d704717a x17: 00000000152996a5 x16: ffff800080333944 x15: 0000000000000001 x14: 1ffff00011e14278 x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000040000 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0098968000000000 x5 : ffff80009371c8c8 x4 : ffff80008f0a1720 x3 : 0000000000000000 x2 : ffff0000efa59e40 x1 : ffff80008afffb40 x0 : ffff800124fe7000 Call trace: __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 timekeeping_inject_offset+0x5bc/0x678 kernel/time/timekeeping.c:1393 do_adjtimex+0x3c4/0x954 kernel/time/timekeeping.c:2445 posix_clock_realtime_adj+0x20/0x30 kernel/time/posix-timers.c:151 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline] __do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline] __se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline] __arm64_sys_clock_adjtime+0x29c/0x440 kernel/time/posix-timers.c:1162 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 339 Comm: kworker/u8:5 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_nc_worker pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : handle_softirqs+0x1c0/0xc34 kernel/softirq.c:542 lr : handle_softirqs+0x1bc/0xc34 kernel/softirq.c:538 sp : ffff800080007f10 x29: ffff800080007f80 x28: ffff0000c6ce0000 x27: 1fffe0001e15d2f9 x26: dfff800000000000 x25: ffff000101b81e80 x24: ffff80008ee16b80 x23: ffff0000c6ce0000 x22: 1fffe00018d9c001 x21: ffff0000c6ce0008 x20: 0000000000000386 x19: ffff0001b3dd9b80 x18: 1fffe000367b8996 x17: ffff800124fc3000 x16: ffff800080333944 x15: 0000000000000001 x14: ffff80008eeb0668 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000100 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000007e6f80 x7 : ffff800080448384 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : ffff80008afffb40 x0 : ffff800124fc3000 Call trace: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] handle_softirqs+0x1c0/0xc34 kernel/softirq.c:538 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:637 irq_exit_rcu+0x14/0x84 kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:387 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] batadv_nc_purge_paths+0x2f4/0x378 net/batman-adv/network-coding.c:471 batadv_nc_worker+0x314/0x580 net/batman-adv/network-coding.c:722 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267 process_scheduled_works kernel/workqueue.c:3348 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:3429 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860