./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1617098606 <...> Warning: Permanently added '10.128.0.151' (ECDSA) to the list of known hosts. execve("./syz-executor1617098606", ["./syz-executor1617098606"], 0x7fffe000d520 /* 10 vars */) = 0 brk(NULL) = 0x5555574d8000 brk(0x5555574d8c40) = 0x5555574d8c40 arch_prctl(ARCH_SET_FS, 0x5555574d8300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1617098606", 4096) = 28 brk(0x5555574f9c40) = 0x5555574f9c40 brk(0x5555574fa000) = 0x5555574fa000 mprotect(0x7ff1f2a61000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3606 attached , child_tidptr=0x5555574d85d0) = 3606 [pid 3606] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3606] setsid() = 1 [pid 3606] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3606] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3606] unshare(CLONE_NEWNS) = 0 [pid 3606] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3606] unshare(CLONE_NEWIPC) = 0 [pid 3606] unshare(CLONE_NEWCGROUP) = 0 [pid 3606] unshare(CLONE_NEWUTS) = 0 [pid 3606] unshare(CLONE_SYSVSEM) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "16777216", 8) = 8 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "536870912", 9) = 9 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "8192", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024", 4) = 4 [pid 3606] close(3) = 0 [pid 3606] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3606] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3606] close(3) = 0 [pid 3606] getpid() = 1 [pid 3606] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 48 c7 c7 e0 5d 4b 8c e8 1a 5c f1 fe e9 55 fc ff ff e8 10 5c [ 38.572367][ T3606] RSP: 0018:ffffc90003f4fb70 EFLAGS: 00010293 [ 38.578494][ T3606] RAX: 0000000000000000 RBX: ffff888073ff2930 RCX: 0000000000000000 [ 38.586554][ T3606] RDX: ffff888026d41d80 RSI: ffffffff82d6d098 RDI: ffff888073ff2920 [ 38.594610][ T3606] RBP: ffff888073ff25b8 R08: 0000000000000005 R09: 0000000000000000 [ 38.602580][ T3606] R10: 0000000000000000 R11: ffffc90003f4fe08 R12: ffff888073ff2a08 [ 38.610661][ T3606] R13: ffff888073ff2958 R14: ffffffff8a296380 R15: ffff88807681ca00 [ 38.618625][ T3606] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 38.627570][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.634151][ T3606] CR2: 0000560709040d28 CR3: 000000001d3f3000 CR4: 0000000000350ef0 [ 38.642195][ T3606] Call Trace: [ 38.645456][ T3606] [ 38.648371][ T3606] ? jfs_write_inode+0x230/0x230 [ 38.653400][ T3606] evict+0x2ed/0x6b0 [ 38.657295][ T3606] dispose_list+0x117/0x1e0 [ 38.661809][ T3606] evict_inodes+0x352/0x450 [ 38.666310][ T3606] ? dispose_list+0x1e0/0x1e0 [ 38.670976][ T3606] ? shrink_dcache_for_umount+0x165/0x330 [ 38.676681][ T3606] generic_shutdown_super+0xab/0x410 [ 38.681953][ T3606] kill_block_super+0x97/0xf0 [ 38.686618][ T3606] deactivate_locked_super+0x94/0x160 [ 38.691974][ T3606] deactivate_super+0xad/0xd0 [ 38.696663][ T3606] cleanup_mnt+0x2ae/0x3d0 [ 38.701080][ T3606] task_work_run+0xdd/0x1a0 [ 38.705835][ T3606] do_exit+0xad5/0x29b0 [ 38.709981][ T3606] ? mm_update_next_owner+0x7a0/0x7a0 [ 38.715362][ T3606] do_group_exit+0xd2/0x2f0 [ 38.719854][ T3606] __x64_sys_exit_group+0x3a/0x50 [ 38.724866][ T3606] do_syscall_64+0x35/0xb0 [ 38.729269][ T3606] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 38.735145][ T3606] RIP: 0033:0x7ff1f29e2149 [ 38.739538][ T3606] Code: Unable to access opcode bytes at 0x7ff1f29e211f. [ 38.746530][ T3606] RSP: 002b:00007ffebc432498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.754919][ T3606] RAX: ffffffffffffffda RBX: 00007ff1f2a673f0 RCX: 00007ff1f29e2149 [ 38.762872][ T3606] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 38.770822][ T3606] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007ff1f2a61e40 [ 38.778773][ T3606] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff1f2a673f0 [ 38.786731][ T3606] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 38.794710][ T3606] [ 38.797709][ T3606] Modules linked in: [ 38.801671][ T3606] ---[ end trace 0000000000000000 ]--- [ 38.807579][ T3606] RIP: 0010:jfs_evict_inode+0x3d8/0x4a0 [ 38.813155][ T3606] Code: 7c 24 80 00 74 0d e8 b7 46 a4 fe 48 89 df e8 3f 57 02 00 e8 aa 46 a4 fe 48 89 df e8 72 ab 1f ff e9 f4 fc ff ff e8 98 46 a4 fe <0f> 0b 48 c7 c7 e0 5d 4b 8c e8 1a 5c f1 fe e9 55 fc ff ff e8 10 5c [ 38.832844][ T3606] RSP: 0018:ffffc90003f4fb70 EFLAGS: 00010293 [ 38.838949][ T3606] RAX: 0000000000000000 RBX: ffff888073ff2930 RCX: 0000000000000000 [ 38.846933][ T3606] RDX: ffff888026d41d80 RSI: ffffffff82d6d098 RDI: ffff888073ff2920 [ 38.854954][ T3606] RBP: ffff888073ff25b8 R08: 0000000000000005 R09: 0000000000000000 [ 38.863005][ T3606] R10: 0000000000000000 R11: ffffc90003f4fe08 R12: ffff888073ff2a08 [ 38.871019][ T3606] R13: ffff888073ff2958 R14: ffffffff8a296380 R15: ffff88807681ca00 [ 38.879028][ T3606] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 38.887950][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.894580][ T3606] CR2: 0000560709040d28 CR3: 000000001d3f3000 CR4: 0000000000350ef0 [ 38.902598][ T3606] Kernel panic - not syncing: Fatal exception [ 38.909436][ T3606] Kernel Offset: disabled [ 38.913758][ T3606] Rebooting in 86400 seconds..