./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1941613964 <...> Warning: Permanently added '10.128.0.117' (ED25519) to the list of known hosts. execve("./syz-executor1941613964", ["./syz-executor1941613964"], 0x7fffe050e320 /* 10 vars */) = 0 brk(NULL) = 0x55558401d000 brk(0x55558401dd00) = 0x55558401dd00 arch_prctl(ARCH_SET_FS, 0x55558401d380) = 0 set_tid_address(0x55558401d650) = 5857 set_robust_list(0x55558401d660, 24) = 0 rseq(0x55558401dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1941613964", 4096) = 28 getrandom("\xb1\x35\x52\x41\x48\x87\xba\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558401dd00 brk(0x55558403ed00) = 0x55558403ed00 brk(0x55558403f000) = 0x55558403f000 mprotect(0x7fc4a88d4000, 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) = 0x7fc4a0400000 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(0x7fc4a0400000, 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 mount("/dev/loop0", "./file0", "jfs", MS_REC, "") = 0 [ 101.135781][ T5857] loop0: detected capacity change from 0 to 32768 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 101.235115][ T5857] Oops: divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 101.242283][ T5857] CPU: 0 UID: 0 PID: 5857 Comm: syz-executor194 Not tainted 6.12.0-syzkaller-10689-g7af08b57bcb9 #0 [ 101.253344][ T5857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 101.263514][ T5857] RIP: 0010:dbAllocAG+0x414/0xd30 [ 101.268781][ T5857] Code: 03 0f b6 0c 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 a7 08 00 00 41 8b 4d 2c 49 8d 7d 30 99 48 89 fe 48 c1 ee 03 f9 48 ba 00 00 00 00 00 fc ff df 0f b6 14 16 84 d2 74 09 80 fa [ 101.288729][ T5857] RSP: 0018:ffffc9000450fbc8 EFLAGS: 00010216 [ 101.294830][ T5857] RAX: 0000000000000400 RBX: 000000000000000a RCX: 0000000000000000 [ 101.302823][ T5857] RDX: 0000000000000000 RSI: 1ffff11004cce406 RDI: ffff888026672030 [ 101.310818][ T5857] RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f [ 101.318829][ T5857] R10: 000000000000000a R11: 0000000000000002 R12: ffff88807650f000 [ 101.326826][ T5857] R13: ffff888026672000 R14: 0000000000000000 R15: 000000000000000c [ 101.334822][ T5857] FS: 000055558401d380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 101.343778][ T5857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.350382][ T5857] CR2: 0000557f78216048 CR3: 00000000772e0000 CR4: 0000000000350ef0 [ 101.358377][ T5857] Call Trace: [ 101.361669][ T5857] [ 101.364613][ T5857] ? die+0x31/0x80 [ 101.368636][ T5857] ? do_trap+0x232/0x430 [ 101.372966][ T5857] ? dbAllocAG+0x414/0xd30 [ 101.377438][ T5857] ? dbAllocAG+0x414/0xd30 [ 101.381899][ T5857] ? do_error_trap+0xf4/0x230 [ 101.386621][ T5857] ? dbAllocAG+0x414/0xd30 [ 101.391083][ T5857] ? exc_divide_error+0x39/0x50 [ 101.396008][ T5857] ? dbAllocAG+0x414/0xd30 [ 101.400646][ T5857] ? asm_exc_divide_error+0x1a/0x20 [ 101.405926][ T5857] ? dbAllocAG+0x414/0xd30 [ 101.410410][ T5857] ? dbAllocAG+0x3cd/0xd30 [ 101.414870][ T5857] ? __pfx_dbAllocAG+0x10/0x10 [ 101.419694][ T5857] ? trace_kmalloc+0x2d/0xd0 [ 101.424481][ T5857] ? __kmalloc_noprof.cold+0x5c/0x61 [ 101.429825][ T5857] ? srso_alias_return_thunk+0x5/0xfbef5 [ 101.435496][ T5857] ? rwsem_read_trylock+0x12d/0x250 [ 101.440823][ T5857] dbDiscardAG+0x249/0x7c0 [ 101.445295][ T5857] ? __pfx_dbDiscardAG+0x10/0x10 [ 101.450279][ T5857] ? __pfx_lock_release+0x10/0x10 [ 101.455387][ T5857] ? trace_lock_acquire+0x14e/0x1f0 [ 101.460639][ T5857] jfs_ioc_trim+0x3fb/0x5c0 [ 101.465248][ T5857] jfs_ioctl+0x335/0x430 [ 101.469556][ T5857] ? __pfx_jfs_ioctl+0x10/0x10 [ 101.474367][ T5857] ? __pfx_jfs_ioctl+0x10/0x10 [ 101.479259][ T5857] __x64_sys_ioctl+0x193/0x200 [ 101.484177][ T5857] do_syscall_64+0xcd/0x250 [ 101.488713][ T5857] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.494657][ T5857] RIP: 0033:0x7fc4a885b679 [ 101.499146][ T5857] 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 [ 101.518879][ T5857] RSP: 002b:00007ffc0fc54e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 101.527335][ T5857] RAX: ffffffffffffffda RBX: 00007ffc0fc55008 RCX: 00007fc4a885b679 [ 101.535332][ T5857] RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004 [ 101.543323][ T5857] RBP: 00007fc4a88d4610 R08: 0000000000000000 R09: 00007ffc0fc55008 [ 101.551317][ T5857] R10: 0000000000005ea7 R11: 0000000000000246 R12: 0000000000000001 [ 101.559395][ T5857] R13: 00007ffc0fc54ff8 R14: 0000000000000001 R15: 0000000000000001 [ 101.567422][ T5857] [ 101.570475][ T5857] Modules linked in: [ 101.574989][ T5857] ---[ end trace 0000000000000000 ]--- [ 101.581584][ T5857] RIP: 0010:dbAllocAG+0x414/0xd30 [ 101.586786][ T5857] Code: 03 0f b6 0c 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 a7 08 00 00 41 8b 4d 2c 49 8d 7d 30 99 48 89 fe 48 c1 ee 03 f9 48 ba 00 00 00 00 00 fc ff df 0f b6 14 16 84 d2 74 09 80 fa [ 101.606679][ T5857] RSP: 0018:ffffc9000450fbc8 EFLAGS: 00010216 [ 101.612967][ T5857] RAX: 0000000000000400 RBX: 000000000000000a RCX: 0000000000000000 [ 101.621115][ T5857] RDX: 0000000000000000 RSI: 1ffff11004cce406 RDI: ffff888026672030 [ 101.629290][ T5857] RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f [ 101.637335][ T5857] R10: 000000000000000a R11: 0000000000000002 R12: ffff88807650f000 [ 101.645394][ T5857] R13: ffff888026672000 R14: 0000000000000000 R15: 000000000000000c [ 101.653436][ T5857] FS: 000055558401d380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 101.662431][ T5857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.669124][ T5857] CR2: 0000557f78216048 CR3: 00000000772e0000 CR4: 0000000000350ef0 [ 101.677184][ T5857] Kernel panic - not syncing: Fatal exception [ 101.683671][ T5857] Kernel Offset: disabled [ 101.688006][ T5857] Rebooting in 86400 seconds..