WARNING: CPU: 1 PID: 5179 at net/hsr/hsr_device.c:299 send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Modules linked in: CPU: 1 PID: 5179 Comm: udevd Not tainted 5.10.0-rc6-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Code: 04 31 ff 89 de e8 c7 9e cd f8 84 db 0f 85 8b fd ff ff e8 aa a6 cd f8 48 c7 c7 a0 e3 6b 8a c6 05 f1 41 36 04 01 e8 43 05 0a 00 <0f> 0b e9 6c fd ff ff e8 8b a6 cd f8 41 be 42 00 00 00 ba 01 00 00 RSP: 0000:ffffc900004c8c70 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801b484300 RSI: ffffffff8158c855 RDI: fffff52000099180 RBP: 00000000000088fb R08: 0000000000000001 R09: ffffffff8ecc1747 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88806a26d180 R13: 0000000000000000 R14: ffff88806ad24ce8 R15: 0000000000000000 FS: 00007f17b139b7a0(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f17b0aaf943 CR3: 0000000015572000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_announce+0x122/0x320 net/hsr/hsr_device.c:404 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1410 expire_timers kernel/time/timer.c:1455 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1747 __run_timers kernel/time/timer.c:1728 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1760 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x132/0x200 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631 RIP: 0010:csd_lock_wait kernel/smp.c:227 [inline] RIP: 0010:smp_call_function_many_cond+0x7ac/0x9d0 kernel/smp.c:689 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 e6 2a 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 9b 00 00 00 8b 43 08 31 RSP: 0000:ffffc90000fa6d78 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff88802cf3b140 RCX: ffffffff8164d9c0 RDX: ffff88801b484300 RSI: ffffffff8164d99a RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000000 R09: ffffffff8ecc1707 R10: 0000000000000000 R11: 0000000000000000 R12: ffffed10059e7629 R13: 0000000000000003 R14: ffff88802cf3b148 R15: 0000000000000001 on_each_cpu_cond_mask+0x50/0x160 kernel/smp.c:899 __flush_tlb_others arch/x86/include/asm/paravirt.h:74 [inline] flush_tlb_others arch/x86/mm/tlb.c:823 [inline] arch_tlbbatch_flush+0x164/0x1c0 arch/x86/mm/tlb.c:1140 try_to_unmap_flush+0x67/0xf0 mm/rmap.c:602 shrink_page_list+0x1498/0x5b00 mm/vmscan.c:1486 shrink_inactive_list+0x358/0xce0 mm/vmscan.c:1961 shrink_list mm/vmscan.c:2171 [inline] shrink_lruvec+0x61b/0x11b0 mm/vmscan.c:2466 shrink_node_memcgs mm/vmscan.c:2654 [inline] shrink_node+0x839/0x1d60 mm/vmscan.c:2771 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x38b/0x1440 mm/vmscan.c:3029 try_to_free_pages+0x29f/0x720 mm/vmscan.c:3268 __perform_reclaim mm/page_alloc.c:4330 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:4351 [inline] __alloc_pages_slowpath.constprop.0+0x917/0x2510 mm/page_alloc.c:4755 __alloc_pages_nodemask+0x5f0/0x730 mm/page_alloc.c:4965 alloc_pages_current+0x191/0x2a0 mm/mempolicy.c:2271 alloc_pages include/linux/gfp.h:547 [inline] __page_cache_alloc mm/filemap.c:977 [inline] __page_cache_alloc+0x2ce/0x360 mm/filemap.c:962 page_cache_ra_unbounded+0x3a1/0x920 mm/readahead.c:216 do_page_cache_ra+0xf9/0x140 mm/readahead.c:267 do_sync_mmap_readahead mm/filemap.c:2653 [inline] filemap_fault+0x19d0/0x2940 mm/filemap.c:2741 ext4_filemap_fault+0x87/0xc0 fs/ext4/inode.c:6192 __do_fault+0x10d/0x4d0 mm/memory.c:3612 do_read_fault mm/memory.c:4006 [inline] do_fault mm/memory.c:4134 [inline] handle_pte_fault mm/memory.c:4374 [inline] __handle_mm_fault mm/memory.c:4509 [inline] handle_mm_fault+0x3198/0x55d0 mm/memory.c:4607 do_user_addr_fault+0x55b/0xb40 arch/x86/mm/fault.c:1372 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1485 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583 RIP: 0033:0x7f17b0aaf943 Code: Unable to access opcode bytes at RIP 0x7f17b0aaf919. RSP: 002b:00007ffdd1e826f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000bb8 RCX: 00007f17b0aaf943 RDX: 0000000000000008 RSI: 00007ffdd1e827f0 RDI: 000000000000000a RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00000000007adf80 R15: 000000000078c250