./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1171053408 <...> DUID 00:04:e3:38:52:80:67:3f:e9:c9:a2:47:22:a3:59:23:7d:1e forked to background, child pid 4881 [ 34.533829][ T4882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.546739][ T4882] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.12' (ED25519) to the list of known hosts. execve("./syz-executor1171053408", ["./syz-executor1171053408"], 0x7ffd79814ce0 /* 10 vars */) = 0 brk(NULL) = 0x555569397000 brk(0x555569397d00) = 0x555569397d00 arch_prctl(ARCH_SET_FS, 0x555569397380) = 0 set_tid_address(0x555569397650) = 5212 set_robust_list(0x555569397660, 24) = 0 rseq(0x555569397ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1171053408", 4096) = 28 getrandom("\xbf\x02\xad\x29\x9e\xe2\x21\x31", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569397d00 brk(0x5555693b8d00) = 0x5555693b8d00 brk(0x5555693b9000) = 0x5555693b9000 mprotect(0x7f9b18b56000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9b10600000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 munmap(0x7f9b10600000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 syzkaller login: [ 58.824615][ T5212] loop0: detected capacity change from 0 to 32768 [ 58.861848][ T5212] gfs2: fsid=_){&: Trying to join cluster "lock_nolock", "_){&" [ 58.869756][ T5212] gfs2: fsid=_){&: Now mounting FS (format 0)... [ 58.888021][ T5212] gfs2: fsid=_){&.s: fatal: filesystem consistency error - inode = 1 19, function = gfs2_jdesc_check, file = fs/gfs2/super.c, line = 119 [ 58.902246][ T5212] gfs2: fsid=_){&.s: G: s:SH n:2/13 f:aqob t:SH d:EX/0 a:0 v:0 r:2 m:20 p:3 [ 58.911468][ T5212] gfs2: fsid=_){&.s: H: s:SH f:eEcH e:0 p:5212 [syz-executor117] init_journal+0x1881/0x2420 [ 58.921919][ T5212] gfs2: fsid=_){&.s: I: n:1/19 t:8 f:0x00 d:0x00000200 s:8388608 p:0 [ 58.930232][ T5212] gfs2: fsid=_){&.s: about to withdraw this file system [ 58.937425][ T5212] ------------[ cut here ]------------ [ 58.942918][ T5212] kernel BUG at fs/gfs2/util.c:340! [ 58.948249][ T5212] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 58.955297][ T5212] CPU: 1 UID: 0 PID: 5212 Comm: syz-executor117 Not tainted 6.11.0-rc5-syzkaller-00079-g928f79a188aa #0 [ 58.966386][ T5212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 58.976428][ T5212] RIP: 0010:gfs2_withdraw+0x1459/0x1460 [ 58.981960][ T5212] Code: ff ff 48 8b 4c 24 10 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 10 e8 02 2c 14 fe e9 42 fd ff ff e8 48 0f b0 fd 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 59.001553][ T5212] RSP: 0018:ffffc900033373c0 EFLAGS: 00010293 [ 59.007605][ T5212] RAX: ffffffff83e37c58 RBX: 0000000000000004 RCX: ffff88807b0a0000 [ 59.015566][ T5212] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 59.023521][ T5212] RBP: ffffc90003337560 R08: ffffffff83e36aae R09: 1ffff92000666e18 [ 59.031484][ T5212] R10: dffffc0000000000 R11: fffff52000666e19 R12: 1ffff11005354815 [ 59.039461][ T5212] R13: 1ffff92000666e8c R14: dffffc0000000000 R15: ffff888029aa4340 [ 59.047424][ T5212] FS: 0000555569397380(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 59.056339][ T5212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.062914][ T5212] CR2: 00000000005fdeb8 CR3: 000000007ae7c000 CR4: 00000000003506f0 [ 59.070874][ T5212] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.078827][ T5212] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.086879][ T5212] Call Trace: [ 59.090230][ T5212] [ 59.093146][ T5212] ? __die_body+0x88/0xe0 [ 59.097483][ T5212] ? die+0xcf/0x110 [ 59.101291][ T5212] ? do_trap+0x15a/0x3a0 [ 59.105529][ T5212] ? gfs2_withdraw+0x1459/0x1460 [ 59.110462][ T5212] ? do_error_trap+0x1dc/0x2c0 [ 59.115236][ T5212] ? gfs2_withdraw+0x1459/0x1460 [ 59.120183][ T5212] ? irqentry_exit+0x63/0x90 [ 59.124795][ T5212] ? lockdep_hardirqs_on+0x99/0x150 [ 59.129991][ T5212] ? __pfx_do_error_trap+0x10/0x10 [ 59.135104][ T5212] ? handle_invalid_op+0x34/0x40 [ 59.140029][ T5212] ? gfs2_withdraw+0x1459/0x1460 [ 59.144952][ T5212] ? exc_invalid_op+0x38/0x50 [ 59.149616][ T5212] ? asm_exc_invalid_op+0x1a/0x20 [ 59.154629][ T5212] ? gfs2_withdraw+0x2ae/0x1460 [ 59.159570][ T5212] ? gfs2_withdraw+0x1458/0x1460 [ 59.164842][ T5212] ? gfs2_withdraw+0x1459/0x1460 [ 59.169773][ T5212] ? __pfx_gfs2_withdraw+0x10/0x10 [ 59.174873][ T5212] ? gfs2_consist_inode_i+0xf5/0x110 [ 59.180145][ T5212] gfs2_jdesc_check+0x17b/0x2e0 [ 59.184987][ T5212] check_journal_clean+0x162/0x360 [ 59.190089][ T5212] ? __pfx_check_journal_clean+0x10/0x10 [ 59.195709][ T5212] ? do_raw_spin_lock+0x14f/0x370 [ 59.200732][ T5212] ? init_journal+0x1881/0x2420 [ 59.205577][ T5212] ? __pfx_gfs2_lookup_meta+0x10/0x10 [ 59.210968][ T5212] ? _raw_spin_unlock+0x28/0x50 [ 59.215816][ T5212] ? gfs2_jdesc_find+0xab/0xc0 [ 59.220576][ T5212] init_journal+0x1881/0x2420 [ 59.225255][ T5212] ? init_inodes+0xdc/0x320 [ 59.229745][ T5212] ? __pfx_init_journal+0x10/0x10 [ 59.234759][ T5212] ? init_sb+0xbdd/0x1270 [ 59.239087][ T5212] ? snprintf+0xda/0x120 [ 59.243319][ T5212] ? init_inodes+0xdc/0x320 [ 59.247812][ T5212] ? __pfx_snprintf+0x10/0x10 [ 59.252476][ T5212] init_inodes+0xdc/0x320 [ 59.256801][ T5212] gfs2_fill_super+0x1c18/0x2500 [ 59.261821][ T5212] ? __pfx_gfs2_fill_super+0x10/0x10 [ 59.267091][ T5212] ? snprintf+0xda/0x120 [ 59.271319][ T5212] ? __pfx_lock_release+0x10/0x10 [ 59.276339][ T5212] ? do_raw_spin_lock+0x14f/0x370 [ 59.281353][ T5212] ? __pfx_snprintf+0x10/0x10 [ 59.286018][ T5212] ? init_locking+0xbd/0x210 [ 59.290595][ T5212] ? sb_set_blocksize+0x98/0xf0 [ 59.295434][ T5212] ? setup_bdev_super+0x4e6/0x5d0 [ 59.300449][ T5212] get_tree_bdev+0x3f7/0x570 [ 59.305060][ T5212] ? __pfx_gfs2_fill_super+0x10/0x10 [ 59.310359][ T5212] ? __pfx_get_tree_bdev+0x10/0x10 [ 59.315460][ T5212] gfs2_get_tree+0x54/0x220 [ 59.319960][ T5212] ? bpf_lsm_capable+0x9/0x10 [ 59.324708][ T5212] vfs_get_tree+0x90/0x2b0 [ 59.329111][ T5212] do_new_mount+0x2be/0xb40 [ 59.333625][ T5212] ? __pfx_do_new_mount+0x10/0x10 [ 59.338635][ T5212] __se_sys_mount+0x2d6/0x3c0 [ 59.343301][ T5212] ? __pfx___se_sys_mount+0x10/0x10 [ 59.348491][ T5212] ? do_syscall_64+0x100/0x230 [ 59.353241][ T5212] ? __x64_sys_mount+0x20/0xc0 [ 59.357989][ T5212] do_syscall_64+0xf3/0x230 [ 59.362475][ T5212] ? clear_bhb_loop+0x35/0x90 [ 59.367229][ T5212] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.373116][ T5212] RIP: 0033:0x7f9b18ad2b3a [ 59.377519][ T5212] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 59.397109][ T5212] RSP: 002b:00007ffd7482ab88 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 59.405511][ T5212] RAX: ffffffffffffffda RBX: 00007ffd7482aba0 RCX: 00007f9b18ad2b3a [ 59.413477][ T5212] RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007ffd7482aba0 [ 59.421439][ T5212] RBP: 0000000000000004 R08: 00007ffd7482abe0 R09: 0000000000012613 [ 59.429393][ T5212] R10: 0000000002800002 R11: 0000000000000282 R12: 0000000002800002 [ 59.437346][ T5212] R13: 00007ffd7482abe0 R14: 0000000000000003 R15: 0000000001000000 [ 59.445569][ T5212] [ 59.448571][ T5212] Modules linked in: [ 59.452622][ T5212] ---[ end trace 0000000000000000 ]--- [ 59.458416][ T5212] RIP: 0010:gfs2_withdraw+0x1459/0x1460 [ 59.464078][ T5212] Code: ff ff 48 8b 4c 24 10 80 e1 07 80 c1 03 38 c1 0f 8c 51 fd ff ff 48 8b 7c 24 10 e8 02 2c 14 fe e9 42 fd ff ff e8 48 0f b0 fd 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 59.483884][ T5212] RSP: 0018:ffffc900033373c0 EFLAGS: 00010293 [ 59.489990][ T5212] RAX: ffffffff83e37c58 RBX: 0000000000000004 RCX: ffff88807b0a0000 [ 59.497991][ T5212] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 59.506006][ T5212] RBP: ffffc90003337560 R08: ffffffff83e36aae R09: 1ffff92000666e18 [ 59.514153][ T5212] R10: dffffc0000000000 R11: fffff52000666e19 R12: 1ffff11005354815 [ 59.522178][ T5212] R13: 1ffff92000666e8c R14: dffffc0000000000 R15: ffff888029aa4340 [ 59.530279][ T5212] FS: 0000555569397380(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 59.539261][ T5212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.545846][ T5212] CR2: 00000000005fdeb8 CR3: 000000007ae7c000 CR4: 00000000003506f0 [ 59.553932][ T5212] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.561924][ T5212] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.569910][ T5212] Kernel panic - not syncing: Fatal exception [ 59.576214][ T5212] Kernel Offset: disabled [ 59.580539][ T5212] Rebooting in 86400 seconds..