device veth1_macvtap left promiscuous mode general protection fault, probably for non-canonical address 0xdffffc0000489cc1: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x000000000244e608-0x000000000244e60f] CPU: 0 PID: 3126 Comm: syz-executor.0 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:compound_head include/linux/page-flags.h:182 [inline] RIP: 0010:PageSwapCache include/linux/page-flags.h:391 [inline] RIP: 0010:free_swap_cache+0x28/0x300 mm/swap_state.c:325 Code: c3 90 41 57 41 56 41 55 41 54 49 89 fc 55 4d 8d 6c 24 08 53 e8 49 03 c7 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 85 02 00 00 4d 8b 74 24 08 31 ff 4c 89 e5 4c 89 RSP: 0018:ffffc900095576d0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888000100170 RCX: ffffffff81ad74d2 RDX: 0000000000489cc1 RSI: ffffffff81ad3bc7 RDI: 000000000244e600 RBP: 000000000000002c R08: 0000000000000000 R09: ffffea00024494c7 R10: 00000000000001fe R11: 0000000000000000 R12: 000000000244e600 R13: 000000000244e608 R14: dffffc0000000000 R15: ffffc90009557a80 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b631de0160 CR3: 000000006abd6000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: free_pages_and_swap_cache+0x58/0x90 mm/swap_state.c:353 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:242 [inline] tlb_flush_mmu+0xe9/0x6b0 mm/mmu_gather.c:249 zap_pte_range mm/memory.c:1157 [inline] zap_pmd_range mm/memory.c:1195 [inline] zap_pud_range mm/memory.c:1224 [inline] zap_p4d_range mm/memory.c:1245 [inline] unmap_page_range+0x1e22/0x2b20 mm/memory.c:1266 unmap_single_vma+0x198/0x300 mm/memory.c:1311 unmap_vmas+0x168/0x2e0 mm/memory.c:1343 exit_mmap+0x2b1/0x530 mm/mmap.c:3183 __mmput+0x122/0x470 kernel/fork.c:1076 mmput+0x53/0x60 kernel/fork.c:1097 exit_mm kernel/exit.c:483 [inline] do_exit+0xa8b/0x29f0 kernel/exit.c:793 do_group_exit+0x125/0x310 kernel/exit.c:903 get_signal+0x428/0x1f00 kernel/signal.c:2757 arch_do_signal+0x82/0x2520 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:136 [inline] exit_to_user_mode_prepare+0x15d/0x1c0 kernel/entry/common.c:167 syscall_exit_to_user_mode+0x59/0x2b0 kernel/entry/common.c:242 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: Bad RIP value. RSP: 002b:00007fa7f03f6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000015340 RCX: 000000000045d5b9 RDX: 0000000020000700 RSI: 0000000000008914 RDI: 0000000000000003 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffcd1603bdf R14: 00007fa7f03f79c0 R15: 000000000118cf4c Modules linked in: ---[ end trace 9c3a1ed59594cd9b ]--- RIP: 0010:compound_head include/linux/page-flags.h:182 [inline] RIP: 0010:PageSwapCache include/linux/page-flags.h:391 [inline] RIP: 0010:free_swap_cache+0x28/0x300 mm/swap_state.c:325 Code: c3 90 41 57 41 56 41 55 41 54 49 89 fc 55 4d 8d 6c 24 08 53 e8 49 03 c7 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 85 02 00 00 4d 8b 74 24 08 31 ff 4c 89 e5 4c 89 RSP: 0018:ffffc900095576d0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888000100170 RCX: ffffffff81ad74d2 RDX: 0000000000489cc1 RSI: ffffffff81ad3bc7 RDI: 000000000244e600 RBP: 000000000000002c R08: 0000000000000000 R09: ffffea00024494c7 R10: 00000000000001fe R11: 0000000000000000 R12: 000000000244e600 R13: 000000000244e608 R14: dffffc0000000000 R15: ffffc90009557a80 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30729000 CR3: 000000009a0bd000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400