BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/1 1 lock held by swapper/1/0: #0: 000000006fb07ce5 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:168 [inline] #0: 000000006fb07ce5 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xda/0x720 kernel/time/timer.c:1316 Preemption disabled at: [] start_secondary+0x149/0x5b0 arch/x86/kernel/smpboot.c:235 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 ___might_sleep.cold+0x1bd/0x1f6 kernel/sched/core.c:6192 __might_sleep+0x95/0x190 kernel/sched/core.c:6145 __mutex_lock_common kernel/locking/mutex.c:908 [inline] __mutex_lock+0xc8/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123 resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers kernel/time/timer.c:1684 [inline] __run_timers kernel/time/timer.c:1652 [inline] run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:806 [inline] RIP: 0010:lock_is_held_type+0x71/0x210 kernel/locking/lockdep.c:3937 Code: 01 00 00 8b 83 7c 08 00 00 85 c0 0f 85 39 01 00 00 48 c7 c0 40 57 f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 <0f> 85 69 01 00 00 48 83 3d a1 ea a0 07 00 0f 84 20 01 00 00 9c 58 RSP: 0018:ffff8880aa3b7c40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11e4ae8 RBX: ffff8880aa3a43c0 RCX: 1ffffffff1278af8 RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880aa3a4c3c RBP: ffff8880aa3b7c60 R08: ffff8880aa3a43c0 R09: ffffed1015d259dd R10: ffffed1015d259dc R11: ffff8880ae92cee7 R12: ffffffff88f93460 R13: 000000000002c240 R14: ffff8880aa3a43c0 R15: ffff8880ae92c240 lock_is_held include/linux/lockdep.h:344 [inline] schedule_debug kernel/sched/core.c:3335 [inline] __schedule+0xf20/0x1dc0 kernel/sched/core.c:3437 schedule_idle+0x58/0x80 kernel/sched/core.c:3586 do_idle+0x18b/0x4d0 kernel/sched/idle.c:287 cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369 start_secondary+0x3e8/0x5b0 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ================================ WARNING: inconsistent lock state 4.19.100-syzkaller #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: 0000000043b5a0b1 (&tpk_port.port_write_mutex){+.?.}, at: tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123 tnc_init drivers/net/hamradio/6pack.c:536 [inline] sixpack_open+0x9d3/0xbf5 drivers/net/hamradio/6pack.c:632 tty_ldisc_open.isra.0+0x89/0xd0 drivers/tty/tty_ldisc.c:469 tty_set_ldisc+0x2d7/0x690 drivers/tty/tty_ldisc.c:594 tiocsetd drivers/tty/tty_io.c:2359 [inline] tty_ioctl+0x65e/0x1510 drivers/tty/tty_io.c:2603 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 3715130 hardirqs last enabled at (3715130): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3715129): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3714978): [] _local_bh_enable+0x1c/0x30 kernel/softirq.c:162 softirqs last disabled at (3714979): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3714979): [] irq_exit+0x180/0x1d0 kernel/softirq.c:412 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&tpk_port.port_write_mutex); lock(&tpk_port.port_write_mutex); *** DEADLOCK *** 1 lock held by swapper/1/0: #0: 000000006fb07ce5 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:168 [inline] #0: 000000006fb07ce5 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xda/0x720 kernel/time/timer.c:1316 stack backtrace: CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 4.19.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_usage_bug.cold+0x330/0x42a kernel/locking/lockdep.c:2540 valid_state kernel/locking/lockdep.c:2553 [inline] mark_lock_irq kernel/locking/lockdep.c:2747 [inline] mark_lock+0xd1b/0x1370 kernel/locking/lockdep.c:3127 mark_irqflags kernel/locking/lockdep.c:3005 [inline] __lock_acquire+0xc62/0x49c0 kernel/locking/lockdep.c:3368 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:123 resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers kernel/time/timer.c:1684 [inline] __run_timers kernel/time/timer.c:1652 [inline] run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:806 [inline] RIP: 0010:lock_is_held_type+0x71/0x210 kernel/locking/lockdep.c:3937 Code: 01 00 00 8b 83 7c 08 00 00 85 c0 0f 85 39 01 00 00 48 c7 c0 40 57 f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 <0f> 85 69 01 00 00 48 83 3d a1 ea a0 07 00 0f 84 20 01 00 00 9c 58 RSP: 0018:ffff8880aa3b7c40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11e4ae8 RBX: ffff8880aa3a43c0 RCX: 1ffffffff1278af8 RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880aa3a4c3c RBP: ffff8880aa3b7c60 R08: ffff8880aa3a43c0 R09: ffffed1015d259dd R10: ffffed1015d259dc R11: ffff8880ae92cee7 R12: ffffffff88f93460 R13: 000000000002c240 R14: ffff8880aa3a43c0 R15: ffff8880ae92c240 lock_is_held include/linux/lockdep.h:344 [inline] schedule_debug kernel/sched/core.c:3335 [inline] __schedule+0xf20/0x1dc0 kernel/sched/core.c:3437 schedule_idle+0x58/0x80 kernel/sched/core.c:3586 do_idle+0x18b/0x4d0 kernel/sched/idle.c:287 cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369 start_secondary+0x3e8/0x5b0 arch/x86/kernel/smpboot.c:271 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device syz-executor.0 invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=1, oom_score_adj=1000 syz-executor.0 cpuset=syz0 mems_allowed=0-1 CPU: 1 PID: 13471 Comm: syz-executor.0 Tainted: G W 4.19.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 dump_header+0x15e/0xa55 mm/oom_kill.c:441 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954 out_of_memory mm/oom_kill.c:1130 [inline] out_of_memory+0x362/0x1330 mm/oom_kill.c:1062 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1416 mem_cgroup_oom mm/memcontrol.c:1742 [inline] try_charge+0xec5/0x1490 mm/memcontrol.c:2313 memcg_kmem_charge_memcg+0x83/0x170 mm/memcontrol.c:2643 memcg_charge_slab mm/slab.h:284 [inline] kmem_getpages mm/slab.c:1418 [inline] cache_grow_begin+0x3fa/0x8c0 mm/slab.c:2682 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292 slab_alloc_node mm/slab.c:3332 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647 alloc_task_struct_node kernel/fork.c:157 [inline] dup_task_struct kernel/fork.c:807 [inline] copy_process.part.0+0x1d04/0x7a60 kernel/fork.c:1737 copy_process kernel/fork.c:1694 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2207 __do_sys_clone kernel/fork.c:2314 [inline] __se_sys_clone kernel/fork.c:2308 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2308 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd19 Code: ff 48 85 f6 0f 84 d7 8c fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c ae 8c fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 RSP: 002b:00007ffcff6bf228 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f3f6a8b2700 RCX: 000000000045dd19 RDX: 00007f3f6a8b29d0 RSI: 00007f3f6a8b1db0 RDI: 00000000003d0f00 RBP: 00007ffcff6bf440 R08: 00007f3f6a8b2700 R09: 00007f3f6a8b2700 R10: 00007f3f6a8b29d0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffcff6bf2df R14: 00007f3f6a8b29c0 R15: 000000000075bfd4 Task in /syz0 killed as a result of limit of /syz0 batman_adv: Cannot find parent device memory: usage 307200kB, limit 307200kB, failcnt 262 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz0: cache:20KB rss:279968KB rss_huge:266240KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:0KB active_anon:280116KB inactive_file:8KB active_file:4KB unevictable:0KB Memory cgroup out of memory: Kill process 8734 (syz-executor.0) score 1120 or sacrifice child Killed process 8734 (syz-executor.0) total-vm:72720kB, anon-rss:4252kB, file-rss:35796kB, shmem-rss:0kB batman_adv: Cannot find parent device batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device [U] `è batman_adv: Cannot find parent device sp0: Synchronizing with TNC batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device [U] è IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device syz-executor.0 invoked oom-killer: gfp_mask=0x7080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null), order=3, oom_score_adj=1000 syz-executor.0 cpuset=syz0 mems_allowed=0-1 CPU: 1 PID: 13752 Comm: syz-executor.0 Tainted: G W 4.19.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 dump_header+0x15e/0xa55 mm/oom_kill.c:441 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954 out_of_memory mm/oom_kill.c:1130 [inline] out_of_memory+0x362/0x1330 mm/oom_kill.c:1062 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1416 mem_cgroup_oom mm/memcontrol.c:1742 [inline] try_charge+0xec5/0x1490 mm/memcontrol.c:2313 memcg_kmem_charge_memcg+0x83/0x170 mm/memcontrol.c:2643 memcg_kmem_charge+0x13b/0x370 mm/memcontrol.c:2686 __alloc_pages_nodemask+0x3c3/0x750 mm/page_alloc.c:4421 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] alloc_pages_node include/linux/gfp.h:523 [inline] alloc_thread_stack_node kernel/fork.c:240 [inline] dup_task_struct kernel/fork.c:811 [inline] copy_process.part.0+0x3d6/0x7a60 kernel/fork.c:1737 copy_process kernel/fork.c:1694 [inline] _do_fork+0x257/0xfd0 kernel/fork.c:2207 __do_sys_clone kernel/fork.c:2314 [inline] __se_sys_clone kernel/fork.c:2308 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2308 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd19 Code: ff 48 85 f6 0f 84 d7 8c fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c ae 8c fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 RSP: 002b:00007ffcff6bf228 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f3f6a870700 RCX: 000000000045dd19 RDX: 00007f3f6a8709d0 RSI: 00007f3f6a86fdb0 RDI: 00000000003d0f00 RBP: 00007ffcff6bf440 R08: 00007f3f6a870700 R09: 00007f3f6a870700 R10: 00007f3f6a8709d0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffcff6bf2df R14: 00007f3f6a8709c0 R15: 000000000075c124 Task in /syz0 killed as a result of limit of /syz0 memory: usage 307204kB, limit 307200kB, failcnt 319 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz0: cache:20KB rss:278500KB rss_huge:264192KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:4KB active_anon:278708KB inactive_file:0KB active_file:0KB unevictable:0KB Memory cgroup out of memory: Kill process 8798 (syz-executor.0) score 1120 or sacrifice child Killed process 8798 (syz-executor.0) total-vm:72720kB, anon-rss:4252kB, file-rss:35796kB, shmem-rss:0kB syz-executor.0 invoked oom-killer: gfp_mask=0x604050(GFP_NOFS|__GFP_COMP|__GFP_RECLAIMABLE), nodemask=(null), order=0, oom_score_adj=1000 syz-executor.0 cpuset=syz0 mems_allowed=0-1 CPU: 1 PID: 13762 Comm: syz-executor.0 Tainted: G W 4.19.100-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 dump_header+0x15e/0xa55 mm/oom_kill.c:441 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954 out_of_memory mm/oom_kill.c:1130 [inline] out_of_memory+0x362/0x1330 mm/oom_kill.c:1062 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1416 mem_cgroup_oom mm/memcontrol.c:1742 [inline] try_charge+0xc6e/0x1490 mm/memcontrol.c:2313 memcg_kmem_charge_memcg+0x83/0x170 mm/memcontrol.c:2643 memcg_charge_slab mm/slab.h:284 [inline] kmem_getpages mm/slab.c:1418 [inline] cache_grow_begin+0x3fa/0x8c0 mm/slab.c:2682 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292 __do_cache_alloc mm/slab.c:3361 [inline] slab_alloc mm/slab.c:3389 [inline] kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557 ext4_alloc_inode+0x1f/0x630 fs/ext4/super.c:1070 alloc_inode+0x64/0x190 fs/inode.c:210 iget_locked+0x196/0x4a0 fs/inode.c:1175 __ext4_iget+0x27b/0x3f80 fs/ext4/inode.c:4859 ext4_lookup fs/ext4/namei.c:1590 [inline] ext4_lookup+0x389/0x6b0 fs/ext4/namei.c:1560 __lookup_hash+0x11d/0x190 fs/namei.c:1547 filename_create+0x1a7/0x4f0 fs/namei.c:3639 user_path_create fs/namei.c:3696 [inline] do_mkdirat+0xb5/0x2a0 fs/namei.c:3834 __do_sys_mkdir fs/namei.c:3858 [inline] __se_sys_mkdir fs/namei.c:3856 [inline] __x64_sys_mkdir+0x5c/0x80 fs/namei.c:3856 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a767 Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3f6a8b1a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007f3f6a8b26d4 RCX: 000000000045a767 RDX: 0000000000000004 RSI: 00000000000001ff RDI: 0000000020000280 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000bac R14: 00000000004cc83a R15: 000000000075bfd4 Task in /syz0 killed as a result of limit of /syz0 memory: usage 302988kB, limit 307200kB, failcnt 319 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz0: cache:20KB rss:274404KB rss_huge:260096KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:4KB active_anon:274508KB inactive_file:0KB active_file:4KB unevictable:0KB Memory cgroup out of memory: Kill process 10951 (syz-executor.0) score 1120 or sacrifice child Killed process 10951 (syz-executor.0) total-vm:72852kB, anon-rss:4260kB, file-rss:35788kB, shmem-rss:0kB batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device IPVS: Error connecting to the multicast addr IPVS: Error connecting to the multicast addr batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device batman_adv: Cannot find parent device