./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1494579290 <...> DUID 00:04:cd:7d:74:7d:04:96:3f:c0:f2:1a:da:5a:49:b1:9f:fb forked to background, child pid 4811 [ 46.824990][ T4812] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.842780][ T4812] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.210' (ECDSA) to the list of known hosts. execve("./syz-executor1494579290", ["./syz-executor1494579290"], 0x7ffc26d3f660 /* 10 vars */) = 0 brk(NULL) = 0x555556512000 brk(0x555556512c40) = 0x555556512c40 arch_prctl(ARCH_SET_FS, 0x555556512300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1494579290", 4096) = 28 brk(0x555556533c40) = 0x555556533c40 brk(0x555556534000) = 0x555556534000 mprotect(0x7f75a4dfa000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555565125d0) = 5246 ./strace-static-x86_64: Process 5246 attached [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5246] write(3, "1000", 4) = 4 [pid 5246] close(3) = 0 [pid 5246] memfd_create("syzkaller", 0) = 3 [pid 5246] ftruncate(3, 67108864) = 0 [pid 5246] pwrite64(3, "\xe2\xe1\xf5\xe0\x95\x21\xe9\x09\x02\x00\x18\x00\x0c\x00\x24", 15, 1024) = 15 [pid 5246] pwrite64(3, "\x06\x00\x27\x0a\x95\x44\x05\xbc\x26\xa9\x66\x95\xa3\xbc\x32\xc1\x45\x9f\x25\x11\xbc\xc1\xfb\x4b\x27\x6e\x6b\x57\x51\xed\x47\x08\x00\x00\x00\x00\x02\x00\x00\x7f\xaa\x09\x4f\x90\x00\x00\x00\x00\x00\x00", 50, 1152) = 50 [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5246] mkdir("./file0", 0777) = 0 [pid 5246] mount("/dev/loop0", "./file0", "erofs", 0, "") = 0 [pid 5246] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 [pid 5246] ioctl(4, LOOP_CLR_FD) = 0 [pid 5246] close(4) = 0 [pid 5246] close(3) = 0 syzkaller login: [ 72.399323][ T5246] loop0: detected capacity change from 0 to 131072 [ 72.422264][ T5246] erofs: (device loop0): mounted with root inode @ nid 36. [ 72.444316][ T5246] ------------[ cut here ]------------ [ 72.450963][ T5246] WARNING: CPU: 1 PID: 5246 at fs/iomap/iter.c:34 iomap_iter+0xeeb/0x12a0 [ 72.459872][ T5246] Modules linked in: [ 72.463823][ T5246] CPU: 0 PID: 5246 Comm: syz-executor149 Not tainted 6.1.0-rc3-next-20221104-syzkaller #0 [ 72.474363][ T5246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 72.484738][ T5246] RIP: 0010:iomap_iter+0xeeb/0x12a0 [ 72.490419][ T5246] Code: ff e8 09 3d 87 ff 0f 0b e9 d6 f7 ff ff e8 fd 3c 87 ff 0f 0b e9 76 f6 ff ff e8 f1 3c 87 ff 0f 0b e9 14 f6 ff ff e8 e5 3c 87 ff <0f> 0b e9 40 f6 ff ff e8 d9 3c 87 ff e8 24 d2 a9 07 31 ff 89 c5 89 [ 72.510336][ T5246] RSP: 0018:ffffc90003c5fa80 EFLAGS: 00010293 [ 72.516462][ T5246] RAX: 0000000000000000 RBX: ffffc90003c5fb98 RCX: 0000000000000000 [ 72.524814][ T5246] RDX: ffff88801b3d57c0 RSI: ffffffff81f5932b RDI: 0000000000000007 [ 72.533088][ T5246] RBP: 000000009566a929 R08: 0000000000000007 R09: 0000000000000000 [ 72.541317][ T5246] R10: 0000000000000000 R11: 000000000008e001 R12: ffffffff8de2f540 [ 72.549774][ T5246] R13: 0000000000000000 R14: 000000009566a926 R15: ffffc90003c5fbc0 [ 72.558298][ T5246] FS: 0000555556512300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 72.567494][ T5246] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.574130][ T5246] CR2: 000055ed5cb26a80 CR3: 0000000077631000 CR4: 00000000003506f0 [ 72.582456][ T5246] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.590747][ T5246] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.599011][ T5246] Call Trace: [ 72.602343][ T5246] [ 72.605407][ T5246] ? fiemap_prep+0x13f/0x220 [ 72.610437][ T5246] iomap_fiemap+0x1e8/0x360 [ 72.615008][ T5246] ? iomap_bmap+0x280/0x280 [ 72.619606][ T5246] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.625758][ T5246] erofs_fiemap+0x6d/0xa0 [ 72.630311][ T5246] do_vfs_ioctl+0x466/0x1580 [ 72.634976][ T5246] ? vfs_fileattr_set+0xbe0/0xbe0 [ 72.640115][ T5246] ? find_held_lock+0x2d/0x110 [ 72.644949][ T5246] ? calibrate_delay+0xce0/0x1120 [ 72.650103][ T5246] ? lock_downgrade+0x6e0/0x6e0 [ 72.655027][ T5246] ? bpf_lsm_file_ioctl+0x5/0x10 [ 72.660084][ T5246] __x64_sys_ioctl+0x108/0x200 [ 72.664908][ T5246] do_syscall_64+0x35/0xb0 [ 72.669667][ T5246] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.675633][ T5246] RIP: 0033:0x7f75a4d8d7a9 [ 72.680250][ T5246] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 c0 ff ff ff f7 d8 64 89 01 48 [ 72.700155][ T5246] RSP: 002b:00007ffe0d7320a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 72.708778][ T5246] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f75a4d8d7a9 [ 72.716803][ T5246] RDX: 0000000020000380 RSI: 00000000c020660b RDI: 0000000000000005 [ 72.724941][ T5246] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007f75a4dfaec0 [ 72.733026][ T5246] R10: 00007ffe0d731f70 R11: 0000000000000246 R12: 00007ffe0d7320d0 [ 72.741194][ T5246] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 72.749496][ T5246] [ 72.752553][ T5246] Kernel panic - not syncing: panic_on_warn set ... [ 72.759162][ T5246] CPU: 0 PID: 5246 Comm: syz-executor149 Not tainted 6.1.0-rc3-next-20221104-syzkaller #0 [ 72.769087][ T5246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 72.779170][ T5246] Call Trace: [ 72.782487][ T5246] [ 72.785455][ T5246] dump_stack_lvl+0xcd/0x134 [ 72.790117][ T5246] panic+0x2c8/0x622 [ 72.794062][ T5246] ? panic_print_sys_info.part.0+0x110/0x110 [ 72.800092][ T5246] ? __warn.cold+0x24b/0x350 [ 72.804743][ T5246] ? iomap_iter+0xeeb/0x12a0 [ 72.809372][ T5246] __warn.cold+0x25c/0x350 [ 72.813833][ T5246] ? iomap_iter+0xeeb/0x12a0 [ 72.818462][ T5246] report_bug+0x1bc/0x210 [ 72.822833][ T5246] handle_bug+0x3c/0x70 [ 72.827013][ T5246] exc_invalid_op+0x14/0x40 [ 72.831543][ T5246] asm_exc_invalid_op+0x16/0x20 [ 72.836433][ T5246] RIP: 0010:iomap_iter+0xeeb/0x12a0 [ 72.841674][ T5246] Code: ff e8 09 3d 87 ff 0f 0b e9 d6 f7 ff ff e8 fd 3c 87 ff 0f 0b e9 76 f6 ff ff e8 f1 3c 87 ff 0f 0b e9 14 f6 ff ff e8 e5 3c 87 ff <0f> 0b e9 40 f6 ff ff e8 d9 3c 87 ff e8 24 d2 a9 07 31 ff 89 c5 89 [ 72.861311][ T5246] RSP: 0018:ffffc90003c5fa80 EFLAGS: 00010293 [ 72.867406][ T5246] RAX: 0000000000000000 RBX: ffffc90003c5fb98 RCX: 0000000000000000 [ 72.875399][ T5246] RDX: ffff88801b3d57c0 RSI: ffffffff81f5932b RDI: 0000000000000007 [ 72.883396][ T5246] RBP: 000000009566a929 R08: 0000000000000007 R09: 0000000000000000 [ 72.891391][ T5246] R10: 0000000000000000 R11: 000000000008e001 R12: ffffffff8de2f540 [ 72.899394][ T5246] R13: 0000000000000000 R14: 000000009566a926 R15: ffffc90003c5fbc0 [ 72.907412][ T5246] ? iomap_iter+0xeeb/0x12a0 [ 72.912068][ T5246] ? fiemap_prep+0x13f/0x220 [ 72.916700][ T5246] iomap_fiemap+0x1e8/0x360 [ 72.921265][ T5246] ? iomap_bmap+0x280/0x280 [ 72.925814][ T5246] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.931870][ T5246] erofs_fiemap+0x6d/0xa0 [ 72.936245][ T5246] do_vfs_ioctl+0x466/0x1580 [ 72.940874][ T5246] ? vfs_fileattr_set+0xbe0/0xbe0 [ 72.946041][ T5246] ? find_held_lock+0x2d/0x110 [ 72.950867][ T5246] ? calibrate_delay+0xce0/0x1120 [ 72.955938][ T5246] ? lock_downgrade+0x6e0/0x6e0 [ 72.960830][ T5246] ? bpf_lsm_file_ioctl+0x5/0x10 [ 72.965807][ T5246] __x64_sys_ioctl+0x108/0x200 [ 72.970703][ T5246] do_syscall_64+0x35/0xb0 [ 72.975169][ T5246] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.981121][ T5246] RIP: 0033:0x7f75a4d8d7a9 [ 72.985561][ T5246] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 c0 ff ff ff f7 d8 64 89 01 48 [ 73.005200][ T5246] RSP: 002b:00007ffe0d7320a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 73.013642][ T5246] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f75a4d8d7a9 [ 73.021641][ T5246] RDX: 0000000020000380 RSI: 00000000c020660b RDI: 0000000000000005 [ 73.029635][ T5246] RBP: 0000000000000000 R08: 0000000000000001 R09: 00007f75a4dfaec0 [ 73.037631][ T5246] R10: 00007ffe0d731f70 R11: 0000000000000246 R12: 00007ffe0d7320d0 [ 73.045628][ T5246] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 73.053644][ T5246] [ 73.056845][ T5246] Kernel Offset: disabled [ 73.061258][ T5246] Rebooting in 86400 seconds..