./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2173530583 <...> Warning: Permanently added '10.128.10.52' (ED25519) to the list of known hosts. execve("./syz-executor2173530583", ["./syz-executor2173530583"], 0x7ffda8c1efe0 /* 10 vars */) = 0 brk(NULL) = 0x55555b7e5000 brk(0x55555b7e5d00) = 0x55555b7e5d00 arch_prctl(ARCH_SET_FS, 0x55555b7e5380) = 0 set_tid_address(0x55555b7e5650) = 5850 set_robust_list(0x55555b7e5660, 24) = 0 rseq(0x55555b7e5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2173530583", 4096) = 28 getrandom("\xa3\x00\x89\x34\xa1\xab\x73\xb3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555b7e5d00 brk(0x55555b806d00) = 0x55555b806d00 brk(0x55555b807000) = 0x55555b807000 mprotect(0x7fee88750000, 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) = 0x7fee80200000 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(0x7fee80200000, 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 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 [ 89.202680][ T5850] loop0: detected capacity change from 0 to 32768 [ 89.257527][ T5850] Oops: divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 89.264538][ T5850] CPU: 1 UID: 0 PID: 5850 Comm: syz-executor217 Not tainted 6.12.0-syzkaller-10689-g7af08b57bcb9 #0 [ 89.275351][ T5850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 89.285415][ T5850] RIP: 0010:dbAllocAG+0x414/0xd30 [ 89.290486][ T5850] 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 [ 89.310113][ T5850] RSP: 0018:ffffc9000485fbc8 EFLAGS: 00010216 [ 89.316207][ T5850] RAX: 0000000000000400 RBX: 000000000000000a RCX: 0000000000000000 [ 89.324207][ T5850] RDX: 0000000000000000 RSI: 1ffff1100f80b606 RDI: ffff88807c05b030 [ 89.332380][ T5850] RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f [ 89.340397][ T5850] R10: 000000000000000a R11: 0000000000000002 R12: ffff88807743d000 [ 89.348444][ T5850] R13: ffff88807c05b000 R14: 0000000000000000 R15: 000000000000000c [ 89.356525][ T5850] FS: 000055555b7e5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 89.365488][ T5850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.372096][ T5850] CR2: 0000563f8234d000 CR3: 000000004a3ec000 CR4: 0000000000350ef0 [ 89.380093][ T5850] Call Trace: [ 89.383389][ T5850] [ 89.386346][ T5850] ? die+0x31/0x80 [ 89.390102][ T5850] ? do_trap+0x232/0x430 [ 89.394395][ T5850] ? dbAllocAG+0x414/0xd30 [ 89.398863][ T5850] ? dbAllocAG+0x414/0xd30 [ 89.403322][ T5850] ? do_error_trap+0xf4/0x230 [ 89.408048][ T5850] ? dbAllocAG+0x414/0xd30 [ 89.412510][ T5850] ? exc_divide_error+0x39/0x50 [ 89.417421][ T5850] ? dbAllocAG+0x414/0xd30 [ 89.421882][ T5850] ? asm_exc_divide_error+0x1a/0x20 [ 89.427141][ T5850] ? dbAllocAG+0x414/0xd30 [ 89.431609][ T5850] ? dbAllocAG+0x3cd/0xd30 [ 89.436068][ T5850] ? __pfx_dbAllocAG+0x10/0x10 [ 89.440958][ T5850] ? trace_kmalloc+0x2d/0xd0 [ 89.445590][ T5850] ? __kmalloc_noprof.cold+0x5c/0x61 [ 89.450907][ T5850] ? srso_alias_return_thunk+0x5/0xfbef5 [ 89.456579][ T5850] ? rwsem_read_trylock+0x12d/0x250 [ 89.461820][ T5850] dbDiscardAG+0x249/0x7c0 [ 89.466289][ T5850] ? __pfx_dbDiscardAG+0x10/0x10 [ 89.471271][ T5850] ? __pfx_lock_release+0x10/0x10 [ 89.476327][ T5850] ? trace_lock_acquire+0x14e/0x1f0 [ 89.481582][ T5850] jfs_ioc_trim+0x3fb/0x5c0 [ 89.486115][ T5850] jfs_ioctl+0x335/0x430 [ 89.490401][ T5850] ? __pfx_jfs_ioctl+0x10/0x10 [ 89.495220][ T5850] ? __pfx_jfs_ioctl+0x10/0x10 [ 89.500026][ T5850] __x64_sys_ioctl+0x193/0x200 [ 89.504832][ T5850] do_syscall_64+0xcd/0x250 [ 89.509364][ T5850] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.515314][ T5850] RIP: 0033:0x7fee886d7679 [ 89.519747][ T5850] 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 [ 89.539391][ T5850] RSP: 002b:00007ffdf40da168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 89.547838][ T5850] RAX: ffffffffffffffda RBX: 00007ffdf40da338 RCX: 00007fee886d7679 [ 89.555830][ T5850] RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004 [ 89.563824][ T5850] RBP: 00007fee88750610 R08: 0000000000000000 R09: 00007ffdf40da338 [ 89.571821][ T5850] R10: 0000000000005ea7 R11: 0000000000000246 R12: 0000000000000001 [ 89.579812][ T5850] R13: 00007ffdf40da328 R14: 0000000000000001 R15: 0000000000000001 [ 89.587811][ T5850] [ 89.590841][ T5850] Modules linked in: [ 89.595248][ T5850] ---[ end trace 0000000000000000 ]--- [ 89.601037][ T5850] RIP: 0010:dbAllocAG+0x414/0xd30 [ 89.606203][ T5850] 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 [ 89.626009][ T5850] RSP: 0018:ffffc9000485fbc8 EFLAGS: 00010216 [ 89.632107][ T5850] RAX: 0000000000000400 RBX: 000000000000000a RCX: 0000000000000000 [ 89.640170][ T5850] RDX: 0000000000000000 RSI: 1ffff1100f80b606 RDI: ffff88807c05b030 [ 89.648286][ T5850] RBP: 0000000000000000 R08: 0000000000000005 R09: 000000000000001f [ 89.656314][ T5850] R10: 000000000000000a R11: 0000000000000002 R12: ffff88807743d000 [ 89.664352][ T5850] R13: ffff88807c05b000 R14: 0000000000000000 R15: 000000000000000c [ 89.672331][ T5850] FS: 000055555b7e5380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 89.681338][ T5850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.687978][ T5850] CR2: 0000563f8234d000 CR3: 000000004a3ec000 CR4: 0000000000350ef0 [ 89.696003][ T5850] Kernel panic - not syncing: Fatal exception [ 89.702492][ T5850] Kernel Offset: disabled [ 89.706819][ T5850] Rebooting in 86400 seconds..