./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2965229706 <...> Warning: Permanently added '10.128.0.221' (ECDSA) to the list of known hosts. execve("./syz-executor2965229706", ["./syz-executor2965229706"], 0x7fffdf823240 /* 10 vars */) = 0 brk(NULL) = 0x555555cd8000 brk(0x555555cd8c40) = 0x555555cd8c40 arch_prctl(ARCH_SET_FS, 0x555555cd8300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2965229706", 4096) = 28 brk(0x555555cf9c40) = 0x555555cf9c40 brk(0x555555cfa000) = 0x555555cfa000 mprotect(0x7f43a4c9a000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f439c7db000 syzkaller login: [ 70.444652][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-executor296' 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(0x7f439c7db000, 16777216) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0 mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "jfs", MS_NOSUID|MS_LAZYTIME, "discard=0x0000000000000080,noquota,iocharset=iso8859-3,usrquota,grpquota,") = 0 openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 open(".", O_RDONLY) = 4 [ 70.624515][ T4995] loop0: detected capacity change from 0 to 32768 [ 70.654803][ T4995] BUG at fs/jfs/jfs_dmap.c:2949 assert(n < 4) [ 70.661478][ T4995] ------------[ cut here ]------------ [ 70.667049][ T4995] kernel BUG at fs/jfs/jfs_dmap.c:2949! [ 70.672739][ T4995] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 70.678824][ T4995] CPU: 0 PID: 4995 Comm: syz-executor296 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0 [ 70.689225][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 70.699272][ T4995] RIP: 0010:dbFindLeaf+0x41f/0x430 [ 70.704405][ T4995] Code: d7 cc db fe eb 89 e8 c0 f4 83 fe 48 c7 c7 a0 3e 21 8b 48 c7 c6 e0 3b 21 8b ba 85 0b 00 00 48 c7 c1 60 49 21 8b e8 21 e3 a5 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 41 57 41 56 [ 70.724016][ T4995] RSP: 0018:ffffc90003c0f978 EFLAGS: 00010246 [ 70.730193][ T4995] RAX: 000000000000002b RBX: 0000000000000020 RCX: 8b3d7253a9bb9500 [ 70.738184][ T4995] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 70.746238][ T4995] RBP: 00000000ffffffff R08: ffffffff816f00ac R09: fffff52000781ee5 [ 70.754202][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888029164010 [ 70.762250][ T4995] R13: 000000000000000a R14: ffff888029164041 R15: 000000000000001d [ 70.770387][ T4995] FS: 0000555555cd8300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 70.779312][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.785896][ T4995] CR2: 000055fde89a20d8 CR3: 000000002247f000 CR4: 00000000003506f0 [ 70.793875][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.801844][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.809814][ T4995] Call Trace: [ 70.813096][ T4995] [ 70.816030][ T4995] ? __die_body+0x5e/0xa0 [ 70.820369][ T4995] ? die+0x87/0xb0 [ 70.824113][ T4995] ? do_trap+0x11e/0x350 [ 70.828363][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.832876][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.837386][ T4995] ? do_error_trap+0x141/0x1f0 [ 70.842152][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.846661][ T4995] ? do_int3+0x30/0x30 [ 70.850738][ T4995] ? handle_invalid_op+0x2c/0x40 [ 70.855678][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.860186][ T4995] ? exc_invalid_op+0x33/0x50 [ 70.864886][ T4995] ? asm_exc_invalid_op+0x1a/0x20 [ 70.870004][ T4995] ? __wake_up_klogd+0xcc/0x100 [ 70.874865][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.879379][ T4995] ? dbFindLeaf+0x41f/0x430 [ 70.883890][ T4995] dbAllocDmapLev+0xce/0x430 [ 70.888487][ T4995] ? dbAllocNear+0x390/0x390 [ 70.893135][ T4995] dbAllocCtl+0x113/0x920 [ 70.897472][ T4995] dbAllocAG+0x28f/0x10b0 [ 70.901808][ T4995] ? __phys_addr+0xba/0x170 [ 70.906326][ T4995] ? dbAllocDmapLev+0x430/0x430 [ 70.911183][ T4995] ? dbDiscardAG+0x21f/0xa10 [ 70.915783][ T4995] ? rcu_is_watching+0x15/0xb0 [ 70.920550][ T4995] ? dbDiscardAG+0x21f/0xa10 [ 70.925149][ T4995] ? trace_kmalloc+0x1f/0xa0 [ 70.929747][ T4995] ? __kmalloc+0x15d/0x230 [ 70.934184][ T4995] dbDiscardAG+0x352/0xa10 [ 70.938610][ T4995] ? dbReAlloc+0x470/0x470 [ 70.943032][ T4995] ? __lock_acquire+0x2070/0x2070 [ 70.948091][ T4995] jfs_ioc_trim+0x433/0x660 [ 70.952609][ T4995] jfs_ioctl+0x2cd/0x3e0 [ 70.956858][ T4995] ? jfs_fileattr_set+0x450/0x450 [ 70.961903][ T4995] ? bpf_lsm_file_ioctl+0x9/0x10 [ 70.966847][ T4995] ? security_file_ioctl+0x81/0xa0 [ 70.971967][ T4995] ? jfs_fileattr_set+0x450/0x450 [ 70.976996][ T4995] __se_sys_ioctl+0xf1/0x160 [ 70.981596][ T4995] do_syscall_64+0x41/0xc0 [ 70.986026][ T4995] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 70.991935][ T4995] RIP: 0033:0x7f43a4c27839 [ 70.996357][ T4995] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 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 [ 71.015974][ T4995] RSP: 002b:00007ffd4a26f388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 71.024392][ T4995] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f43a4c27839 [ 71.032365][ T4995] RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004 [ 71.040332][ T4995] RBP: 00007f43a4be70d0 R08: 0000000000000000 R09: 0000000000000000 [ 71.048300][ T4995] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f43a4be7160 [ 71.056273][ T4995] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 71.064254][ T4995] [ 71.067272][ T4995] Modules linked in: [ 71.071952][ T4995] ---[ end trace 0000000000000000 ]--- [ 71.077599][ T4995] RIP: 0010:dbFindLeaf+0x41f/0x430 [ 71.082718][ T4995] Code: d7 cc db fe eb 89 e8 c0 f4 83 fe 48 c7 c7 a0 3e 21 8b 48 c7 c6 e0 3b 21 8b ba 85 0b 00 00 48 c7 c1 60 49 21 8b e8 21 e3 a5 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 41 57 41 56 [ 71.102376][ T4995] RSP: 0018:ffffc90003c0f978 EFLAGS: 00010246 [ 71.108483][ T4995] RAX: 000000000000002b RBX: 0000000000000020 RCX: 8b3d7253a9bb9500 [ 71.116489][ T4995] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 71.124493][ T4995] RBP: 00000000ffffffff R08: ffffffff816f00ac R09: fffff52000781ee5 [ 71.132461][ T4995] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888029164010 [ 71.140786][ T4995] R13: 000000000000000a R14: ffff888029164041 R15: 000000000000001d [ 71.148837][ T4995] FS: 0000555555cd8300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 71.157830][ T4995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.164456][ T4995] CR2: 000055fde89a20d8 CR3: 000000002247f000 CR4: 00000000003506f0 [ 71.172429][ T4995] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.180639][ T4995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.188671][ T4995] Kernel panic - not syncing: Fatal exception [ 71.195020][ T4995] Kernel Offset: disabled [ 71.199359][ T4995] Rebooting in 86400 seconds..