./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2639938955 <...> DUID 00:04:f8:b5:8a:47:ae:09:95:3a:43:2d:d7:42:86:31:94:89 forked to background, child pid 4730 [ 33.644613][ T4731] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.661409][ T4731] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.147' (ED25519) to the list of known hosts. execve("./syz-executor2639938955", ["./syz-executor2639938955"], 0x7fff8680c180 /* 10 vars */) = 0 brk(NULL) = 0x555555d6a000 brk(0x555555d6ad00) = 0x555555d6ad00 arch_prctl(ARCH_SET_FS, 0x555555d6a380) = 0 set_tid_address(0x555555d6a650) = 5061 set_robust_list(0x555555d6a660, 24) = 0 rseq(0x555555d6aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2639938955", 4096) = 28 getrandom("\x1d\x65\xe6\x39\x42\xb2\x7f\x66", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d6ad00 brk(0x555555d8bd00) = 0x555555d8bd00 brk(0x555555d8c000) = 0x555555d8c000 mprotect(0x7f744ee84000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./file0", 000) = 0 mount(NULL, "./file0", "tracefs", 0, NULL) = 0 open("./file0", O_RDONLY) = 3 getdents64(3, 0x20000300 /* 6 entries */, 208) = 192 syzkaller login: [ 55.056135][ T5061] BUG: unable to handle page fault for address: fffffffffffffff0 [ 55.063902][ T5061] #PF: supervisor read access in kernel mode [ 55.070062][ T5061] #PF: error_code(0x0000) - not-present page [ 55.076567][ T5061] PGD d734067 P4D d734067 PUD d736067 PMD 0 [ 55.082764][ T5061] Oops: 0000 [#1] PREEMPT SMP KASAN [ 55.087960][ T5061] CPU: 0 PID: 5061 Comm: syz-executor263 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0 [ 55.099287][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 55.109607][ T5061] RIP: 0010:tracefs_apply_options+0x4d0/0xa40 [ 55.115802][ T5061] Code: 24 10 49 8b 1e 48 83 c3 f0 74 3d 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 70 ff 88 fe <48> 8b 1b 48 89 de 48 83 e6 02 31 ff e8 bf fe 2c fe 48 83 e3 02 75 [ 55.136107][ T5061] RSP: 0018:ffffc90003cf7ca8 EFLAGS: 00010246 [ 55.142891][ T5061] RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: ffff88801d950000 [ 55.151626][ T5061] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90003cf7c20 [ 55.161073][ T5061] RBP: dffffc0000000000 R08: 0000000000000003 R09: fffff5200079ef84 [ 55.169208][ T5061] R10: dffffc0000000000 R11: fffff5200079ef84 R12: ffff88807d556e40 [ 55.178083][ T5061] R13: ffff88801b00fb78 R14: ffff88807d556da0 R15: ffff88807d556dc8 [ 55.186042][ T5061] FS: 0000555555d6a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.195940][ T5061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.202937][ T5061] CR2: fffffffffffffff0 CR3: 00000000761f9000 CR4: 00000000003506f0 [ 55.211002][ T5061] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.220389][ T5061] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.228976][ T5061] Call Trace: [ 55.232514][ T5061] [ 55.235522][ T5061] ? __die_body+0x8b/0xe0 [ 55.239947][ T5061] ? page_fault_oops+0x802/0xaa0 [ 55.244902][ T5061] ? kernelmode_fixup_or_oops+0x2a0/0x2a0 [ 55.251155][ T5061] ? page_fault_oops+0xaa0/0xaa0 [ 55.256363][ T5061] ? mark_lock+0x9a/0x350 [ 55.260815][ T5061] ? kernelmode_fixup_or_oops+0x225/0x2a0 [ 55.266644][ T5061] ? __bad_area_nosemaphore+0x12a/0x740 [ 55.273595][ T5061] ? spurious_kernel_fault_check+0x130/0x130 [ 55.280923][ T5061] ? spurious_kernel_fault+0x11b/0x520 [ 55.286737][ T5061] ? do_kern_addr_fault+0x30/0x80 [ 55.292323][ T5061] ? exc_page_fault+0x5b0/0x870 [ 55.298159][ T5061] ? asm_exc_page_fault+0x26/0x30 [ 55.304008][ T5061] ? tracefs_apply_options+0x4d0/0xa40 [ 55.309584][ T5061] ? tracefs_apply_options+0x483/0xa40 [ 55.315061][ T5061] tracefs_remount+0x78/0x80 [ 55.320195][ T5061] reconfigure_super+0x440/0x870 [ 55.325514][ T5061] path_mount+0xc24/0xfa0 [ 55.329952][ T5061] __se_sys_mount+0x2d9/0x3c0 [ 55.334659][ T5061] ? __x64_sys_mount+0xc0/0xc0 [ 55.339431][ T5061] ? syscall_enter_from_user_mode+0xa4/0x2d0 [ 55.346913][ T5061] ? syscall_enter_from_user_mode+0xf5/0x2d0 [ 55.352908][ T5061] ? __x64_sys_mount+0x20/0xc0 [ 55.358980][ T5061] do_syscall_64+0x45/0x110 [ 55.363587][ T5061] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 55.369656][ T5061] RIP: 0033:0x7f744ee115e9 [ 55.374262][ T5061] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 55.394229][ T5061] RSP: 002b:00007ffcea2fafa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.403208][ T5061] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f744ee115e9 [ 55.411987][ T5061] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000000 [ 55.420233][ T5061] RBP: 00007f744ee84610 R08: 0000000020000100 R09: 00007ffcea2fb178 [ 55.428487][ T5061] R10: 0000000002204c3b R11: 0000000000000246 R12: 0000000000000001 [ 55.437213][ T5061] R13: 00007ffcea2fb168 R14: 0000000000000001 R15: 0000000000000001 [ 55.445822][ T5061] [ 55.448929][ T5061] Modules linked in: [ 55.453088][ T5061] CR2: fffffffffffffff0 [ 55.457270][ T5061] ---[ end trace 0000000000000000 ]--- [ 55.462905][ T5061] RIP: 0010:tracefs_apply_options+0x4d0/0xa40 [ 55.469198][ T5061] Code: 24 10 49 8b 1e 48 83 c3 f0 74 3d 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 70 ff 88 fe <48> 8b 1b 48 89 de 48 83 e6 02 31 ff e8 bf fe 2c fe 48 83 e3 02 75 [ 55.489334][ T5061] RSP: 0018:ffffc90003cf7ca8 EFLAGS: 00010246 [ 55.495544][ T5061] RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: ffff88801d950000 [ 55.503516][ T5061] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90003cf7c20 [ 55.511679][ T5061] RBP: dffffc0000000000 R08: 0000000000000003 R09: fffff5200079ef84 [ 55.519842][ T5061] R10: dffffc0000000000 R11: fffff5200079ef84 R12: ffff88807d556e40 [ 55.528045][ T5061] R13: ffff88801b00fb78 R14: ffff88807d556da0 R15: ffff88807d556dc8 [ 55.536018][ T5061] FS: 0000555555d6a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.545079][ T5061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.552065][ T5061] CR2: fffffffffffffff0 CR3: 00000000761f9000 CR4: 00000000003506f0 [ 55.560037][ T5061] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.568270][ T5061] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.576254][ T5061] Kernel panic - not syncing: Fatal exception [ 55.582675][ T5061] Kernel Offset: disabled [ 55.586998][ T5061] Rebooting in 86400 seconds..