./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2359298881 <...> Warning: Permanently added '10.128.1.227' (ED25519) to the list of known hosts. execve("./syz-executor2359298881", ["./syz-executor2359298881"], 0x7fff8da0e1a0 /* 10 vars */) = 0 brk(NULL) = 0x5555569f3000 brk(0x5555569f3d00) = 0x5555569f3d00 arch_prctl(ARCH_SET_FS, 0x5555569f3380) = 0 set_tid_address(0x5555569f3650) = 5020 set_robust_list(0x5555569f3660, 24) = 0 rseq(0x5555569f3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2359298881", 4096) = 28 getrandom("\x55\x28\xb6\x7e\xc3\xdb\x9e\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555569f3d00 brk(0x555556a14d00) = 0x555556a14d00 brk(0x555556a15000) = 0x555556a15000 mprotect(0x7f79a5ce0000, 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) = 0x7f799d82a000 [ 43.418040][ T5020] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5020 'syz-executor235' 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(0x7f799d82a000, 16777216) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 mount("/dev/loop0", "./file0", "jfs", MS_NOSUID|MS_NODIRATIME|MS_STRICTATIME, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_SYNC|O_LARGEFILE|O_NOATIME|FASYNC, 000) = 4 [ 43.514897][ T5020] loop0: detected capacity change from 0 to 32768 [ 43.672848][ T5020] BUG at fs/jfs/jfs_dmap.c:2958 assert(n < 4) [ 43.679183][ T5020] ------------[ cut here ]------------ [ 43.684625][ T5020] kernel BUG at fs/jfs/jfs_dmap.c:2958! [ 43.690224][ T5020] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 43.696288][ T5020] CPU: 1 PID: 5020 Comm: syz-executor235 Not tainted 6.5.0-rc1-syzkaller-00006-g3f01e9fed845 #0 [ 43.706703][ T5020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 [ 43.716751][ T5020] RIP: 0010:dbFindLeaf+0x153/0x260 [ 43.721857][ T5020] Code: fe 83 fb 04 75 8c e8 7c ed 96 fe 48 c7 c1 00 bc a9 8a ba 8e 0b 00 00 48 c7 c6 40 ba a9 8a 48 c7 c7 80 ba a9 8a e8 1d 95 7a fe <0f> 0b e8 56 ed 96 fe 44 8d 34 ad 01 00 00 00 31 ff 83 6c 24 04 01 [ 43.741466][ T5020] RSP: 0018:ffffc90003b9f320 EFLAGS: 00010286 [ 43.747540][ T5020] RAX: 000000000000002b RBX: 0000000000000004 RCX: 0000000000000000 [ 43.755495][ T5020] RDX: 0000000000000000 RSI: ffffffff81691b9c RDI: 0000000000000005 [ 43.763464][ T5020] RBP: 0000000000000014 R08: 0000000000000005 R09: 0000000000000000 [ 43.771436][ T5020] R10: 0000000080000000 R11: 0000000000000001 R12: ffff88807ad43010 [ 43.779396][ T5020] R13: 0000000000000000 R14: 0000000000000011 R15: 00000000ffffffff [ 43.787355][ T5020] FS: 00005555569f3380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 43.796284][ T5020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.802869][ T5020] CR2: 0000000020ea0000 CR3: 000000007852b000 CR4: 0000000000350ee0 [ 43.810827][ T5020] Call Trace: [ 43.814093][ T5020] [ 43.817013][ T5020] ? die+0x32/0x90 [ 43.820729][ T5020] ? do_trap+0x1b2/0x3f0 [ 43.824986][ T5020] ? dbFindLeaf+0x153/0x260 [ 43.829479][ T5020] ? dbFindLeaf+0x153/0x260 [ 43.833967][ T5020] ? do_error_trap+0xb1/0x170 [ 43.838630][ T5020] ? dbFindLeaf+0x153/0x260 [ 43.843138][ T5020] ? handle_invalid_op+0x2c/0x30 [ 43.848062][ T5020] ? dbFindLeaf+0x153/0x260 [ 43.852553][ T5020] ? exc_invalid_op+0x2f/0x50 [ 43.857226][ T5020] ? asm_exc_invalid_op+0x1a/0x20 [ 43.862231][ T5020] ? vprintk+0x8c/0xa0 [ 43.866288][ T5020] ? dbFindLeaf+0x153/0x260 [ 43.870781][ T5020] dbAllocDmapLev+0xa2/0x2f0 [ 43.875359][ T5020] ? dbAllocNext+0x410/0x410 [ 43.880025][ T5020] ? folio_unlock+0x7d/0xd0 [ 43.884518][ T5020] ? __get_metapage+0x544/0x1170 [ 43.889442][ T5020] dbAllocCtl+0x131/0x7a0 [ 43.893764][ T5020] dbAllocAG+0x8da/0xdc0 [ 43.897998][ T5020] ? dbAllocCtl+0x7a0/0x7a0 [ 43.902488][ T5020] ? dbNextAG+0x40a/0x5f0 [ 43.906831][ T5020] dbAlloc+0x411/0xab0 [ 43.910905][ T5020] extAlloc+0x4eb/0xeb0 [ 43.915052][ T5020] ? jfs_ioc_trim+0x5c0/0x5c0 [ 43.919736][ T5020] ? down_write_nested+0x153/0x200 [ 43.924831][ T5020] ? find_held_lock+0x2d/0x110 [ 43.929579][ T5020] jfs_get_block+0x665/0xa90 [ 43.934158][ T5020] ? jfs_read_folio+0x20/0x20 [ 43.938820][ T5020] ? folio_flags.constprop.0+0x53/0x150 [ 43.944353][ T5020] ? do_raw_spin_unlock+0x175/0x230 [ 43.949541][ T5020] ? _raw_spin_unlock+0x28/0x40 [ 43.954403][ T5020] __block_write_begin_int+0x3b1/0x14a0 [ 43.959929][ T5020] ? jfs_read_folio+0x20/0x20 [ 43.964593][ T5020] ? invalidate_bh_lrus_cpu+0x170/0x170 [ 43.970118][ T5020] ? folio_flags.constprop.0+0x53/0x150 [ 43.975681][ T5020] ? jfs_read_folio+0x20/0x20 [ 43.980363][ T5020] block_write_begin+0xb9/0x4d0 [ 43.985201][ T5020] jfs_write_begin+0x31/0xd0 [ 43.989773][ T5020] generic_perform_write+0x26b/0x5d0 [ 43.995052][ T5020] ? generic_file_readonly_mmap+0x190/0x190 [ 44.000944][ T5020] ? new_inode+0x280/0x280 [ 44.005355][ T5020] ? generic_write_checks_count+0x2c0/0x2c0 [ 44.011228][ T5020] __generic_file_write_iter+0x1f8/0x240 [ 44.016865][ T5020] generic_file_write_iter+0xe3/0x350 [ 44.022218][ T5020] do_iter_readv_writev+0x211/0x3b0 [ 44.027406][ T5020] ? __lock_acquire+0x1984/0x5e20 [ 44.032417][ T5020] ? generic_copy_file_range+0x1d0/0x1d0 [ 44.038035][ T5020] ? bpf_lsm_file_permission+0x9/0x10 [ 44.043406][ T5020] ? security_file_permission+0xaf/0xd0 [ 44.048947][ T5020] do_iter_write+0x182/0x810 [ 44.053526][ T5020] vfs_writev+0x1b0/0x670 [ 44.057839][ T5020] ? vfs_iter_write+0xb0/0xb0 [ 44.062503][ T5020] ? lock_sync+0x190/0x190 [ 44.066902][ T5020] ? ptrace_stop.part.0+0x4a3/0x8e0 [ 44.072086][ T5020] ? spin_bug+0x1c0/0x1c0 [ 44.076489][ T5020] ? recalc_sigpending_tsk+0x18b/0x1d0 [ 44.081948][ T5020] ? ptrace_stop.part.0+0x60f/0x8e0 [ 44.087138][ T5020] ? find_held_lock+0x2d/0x110 [ 44.091882][ T5020] do_pwritev+0x1ad/0x260 [ 44.096220][ T5020] ? do_writev+0x2f0/0x2f0 [ 44.100651][ T5020] ? _raw_spin_unlock_irq+0x23/0x50 [ 44.105951][ T5020] ? lockdep_hardirqs_on+0x7d/0x100 [ 44.111135][ T5020] __x64_sys_pwritev2+0xef/0x150 [ 44.116063][ T5020] do_syscall_64+0x39/0xb0 [ 44.120471][ T5020] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.126612][ T5020] RIP: 0033:0x7f79a5c67639 [ 44.131010][ T5020] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 44.150598][ T5020] RSP: 002b:00007ffd1b7f35d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 44.158989][ T5020] RAX: ffffffffffffffda RBX: 00007ffd1b7f37b8 RCX: 00007f79a5c67639 [ 44.166947][ T5020] RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000004 [ 44.174900][ T5020] RBP: 00007f79a5ce0610 R08: 0000000000000000 R09: 0000000000000000 [ 44.182852][ T5020] R10: 0000000000005405 R11: 0000000000000246 R12: 0000000000000001 [ 44.190802][ T5020] R13: 00007ffd1b7f37a8 R14: 0000000000000001 R15: 0000000000000001 [ 44.198764][ T5020] [ 44.201765][ T5020] Modules linked in: [ 44.205768][ T5020] ---[ end trace 0000000000000000 ]--- [ 44.211270][ T5020] RIP: 0010:dbFindLeaf+0x153/0x260 [ 44.216428][ T5020] Code: fe 83 fb 04 75 8c e8 7c ed 96 fe 48 c7 c1 00 bc a9 8a ba 8e 0b 00 00 48 c7 c6 40 ba a9 8a 48 c7 c7 80 ba a9 8a e8 1d 95 7a fe <0f> 0b e8 56 ed 96 fe 44 8d 34 ad 01 00 00 00 31 ff 83 6c 24 04 01 [ 44.236305][ T5020] RSP: 0018:ffffc90003b9f320 EFLAGS: 00010286 [ 44.242375][ T5020] RAX: 000000000000002b RBX: 0000000000000004 RCX: 0000000000000000 [ 44.250369][ T5020] RDX: 0000000000000000 RSI: ffffffff81691b9c RDI: 0000000000000005 [ 44.258377][ T5020] RBP: 0000000000000014 R08: 0000000000000005 R09: 0000000000000000 [ 44.266368][ T5020] R10: 0000000080000000 R11: 0000000000000001 R12: ffff88807ad43010 [ 44.274336][ T5020] R13: 0000000000000000 R14: 0000000000000011 R15: 00000000ffffffff [ 44.282339][ T5020] FS: 00005555569f3380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 44.291369][ T5020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.297974][ T5020] CR2: 0000000020ea0000 CR3: 000000007852b000 CR4: 0000000000350ee0 [ 44.305969][ T5020] Kernel panic - not syncing: Fatal exception [ 44.312687][ T5020] Kernel Offset: disabled [ 44.316995][ T5020] Rebooting in 86400 seconds..