./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor473539217 <...> Warning: Permanently added '10.128.0.51' (ED25519) to the list of known hosts. execve("./syz-executor473539217", ["./syz-executor473539217"], 0x7ffdf5305ba0 /* 10 vars */) = 0 brk(NULL) = 0x55557831b000 brk(0x55557831bd00) = 0x55557831bd00 arch_prctl(ARCH_SET_FS, 0x55557831b380) = 0 set_tid_address(0x55557831b650) = 5079 set_robust_list(0x55557831b660, 24) = 0 rseq(0x55557831bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor473539217", 4096) = 27 getrandom("\x58\x1d\x63\x7c\xc5\x7f\x08\xe5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557831bd00 brk(0x55557833cd00) = 0x55557833cd00 brk(0x55557833d000) = 0x55557833d000 mprotect(0x7f000c598000, 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 mount(NULL, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, NULL) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x30\x3a\x4d\x3a\x30\x3a\x01\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a", 21) = 21 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/binfmt_misc/register", O_WRONLY|O_CLOEXEC) = 3 write(3, "\x3a\x73\x79\x7a\x31\x3a\x4d\x3a\x31\x3a\x02\x3a\x3a\x2e\x2f\x66\x69\x6c\x65\x30\x3a\x50\x4f\x43", 24) = 24 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557831b650) = 5080 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x55557831b660, 24) = 0 [pid 5080] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setsid() = 1 [pid 5080] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5080] unshare(CLONE_NEWNS) = 0 [pid 5080] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5080] unshare(CLONE_NEWIPC) = 0 [pid 5080] unshare(CLONE_NEWCGROUP) = 0 [pid 5080] unshare(CLONE_NEWUTS) = 0 [pid 5080] unshare(CLONE_SYSVSEM) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "16777216", 8) = 8 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "536870912", 9) = 9 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "8192", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5080] close(3) = 0 [pid 5080] getpid() = 1 [pid 5080] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 e9 3f ff ff ff e8 80 9d 74 fb 48 8b 44 24 08 48 b9 00 00 [ 61.918979][ T24] RSP: 0018:ffffc900001e7b48 EFLAGS: 00010293 [ 61.925125][ T24] RAX: ffffffff8620cd42 RBX: 0000000000000002 RCX: ffff8880176f8000 [ 61.933154][ T24] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 [pid 5080] close(18) = -1 EBADF (Bad file descriptor) [pid 5080] close(19) = -1 EBADF (Bad file descriptor) [pid 5080] close(20) = -1 EBADF (Bad file descriptor) [pid 5080] close(21) = -1 EBADF (Bad file descriptor) [pid 5080] close(22) = -1 EBADF (Bad file descriptor) [pid 5080] close(23) = -1 EBADF (Bad file descriptor) [pid 5080] close(24) = -1 EBADF (Bad file descriptor) [pid 5080] close(25) = -1 EBADF (Bad file descriptor) [pid 5080] close(26) = -1 EBADF (Bad file descriptor) [pid 5080] close(27) = -1 EBADF (Bad file descriptor) [pid 5080] close(28) = -1 EBADF (Bad file descriptor) [pid 5080] close(29) = -1 EBADF (Bad file descriptor) [pid 5080] exit_group(1) = ? [ 61.941263][ T24] RBP: 0000000000008000 R08: ffffffff8620cc7c R09: 1ffff11003fccfaf [ 61.949842][ T24] R10: dffffc0000000000 R11: ffffed1003fccfb0 R12: ffff888022830000 [ 61.957943][ T24] R13: ffff888022831688 R14: ffff88801fe67d78 R15: ffff888022830148 [ 61.966002][ T24] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 61.975054][ T24] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.981751][ T24] CR2: 00000000005fdeb8 CR3: 000000000e134000 CR4: 00000000003506f0 [ 61.989887][ T24] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.997955][ T24] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.006336][ T24] Call Trace: [ 62.009663][ T24] [ 62.012589][ T24] ? __warn+0x163/0x4e0 [ 62.016934][ T24] ? sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.022873][ T24] ? report_bug+0x2b3/0x500 [ 62.027476][ T24] ? sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.033855][ T24] ? handle_bug+0x3e/0x70 [ 62.038285][ T24] ? exc_invalid_op+0x1a/0x50 [ 62.042987][ T24] ? asm_exc_invalid_op+0x1a/0x20 [ 62.048110][ T24] ? sg_remove_sfp_usercontext+0x32c/0x530 [ 62.053952][ T24] ? sg_remove_sfp_usercontext+0x3f2/0x530 [ 62.059867][ T24] ? sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.065886][ T24] ? sg_remove_sfp_usercontext+0x3f2/0x530 [ 62.071699][ T24] ? process_scheduled_works+0x945/0x1830 [ 62.077490][ T24] process_scheduled_works+0xa2c/0x1830 [ 62.083065][ T24] ? __pfx_process_scheduled_works+0x10/0x10 [ 62.089116][ T24] ? assign_work+0x364/0x3d0 [ 62.093758][ T24] worker_thread+0x86d/0xd70 [ 62.098472][ T24] ? __kthread_parkme+0x169/0x1d0 [ 62.103649][ T24] ? __pfx_worker_thread+0x10/0x10 [ 62.109594][ T24] kthread+0x2f0/0x390 [ 62.113861][ T24] ? __pfx_worker_thread+0x10/0x10 [ 62.119136][ T24] ? __pfx_kthread+0x10/0x10 [ 62.123757][ T24] ret_from_fork+0x4b/0x80 [ 62.128239][ T24] ? __pfx_kthread+0x10/0x10 [ 62.132948][ T24] ret_from_fork_asm+0x1a/0x30 [ 62.137844][ T24] [ 62.140882][ T24] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 62.148196][ T24] CPU: 1 PID: 24 Comm: kworker/1:0 Not tainted 6.9.0-rc1-next-20240328-syzkaller #0 [ 62.157559][ T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 62.167605][ T24] Workqueue: events sg_remove_sfp_usercontext [ 62.174100][ T24] Call Trace: [ 62.177398][ T24] [ 62.180353][ T24] dump_stack_lvl+0x241/0x360 [ 62.185039][ T24] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.190255][ T24] ? __pfx__printk+0x10/0x10 [ 62.194866][ T24] ? vscnprintf+0x5d/0x90 [ 62.199207][ T24] panic+0x349/0x860 [ 62.203098][ T24] ? __warn+0x172/0x4e0 [ 62.207245][ T24] ? __pfx_panic+0x10/0x10 [ 62.211658][ T24] ? ret_from_fork_asm+0x1a/0x30 [ 62.216741][ T24] __warn+0x346/0x4e0 [ 62.220786][ T24] ? sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.226617][ T24] report_bug+0x2b3/0x500 [ 62.231010][ T24] ? sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.236868][ T24] handle_bug+0x3e/0x70 [ 62.241116][ T24] exc_invalid_op+0x1a/0x50 [ 62.245735][ T24] asm_exc_invalid_op+0x1a/0x20 [ 62.250596][ T24] RIP: 0010:sg_remove_sfp_usercontext+0x3f3/0x530 [ 62.257029][ T24] Code: 8b 36 49 8d 96 4d 01 00 00 48 c7 c7 a0 fe 4b 8c 48 c7 c1 c0 07 4c 8c 4d 89 e0 e8 d8 a3 eb ff e9 f7 fe ff ff e8 8e 9d 74 fb 90 <0f> 0b 90 e9 3f ff ff ff e8 80 9d 74 fb 48 8b 44 24 08 48 b9 00 00 [ 62.276641][ T24] RSP: 0018:ffffc900001e7b48 EFLAGS: 00010293 [ 62.282742][ T24] RAX: ffffffff8620cd42 RBX: 0000000000000002 RCX: ffff8880176f8000 [ 62.290729][ T24] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 [ 62.298701][ T24] RBP: 0000000000008000 R08: ffffffff8620cc7c R09: 1ffff11003fccfaf [ 62.306677][ T24] R10: dffffc0000000000 R11: ffffed1003fccfb0 R12: ffff888022830000 [ 62.314664][ T24] R13: ffff888022831688 R14: ffff88801fe67d78 R15: ffff888022830148 [ 62.322662][ T24] ? sg_remove_sfp_usercontext+0x32c/0x530 [ 62.328502][ T24] ? sg_remove_sfp_usercontext+0x3f2/0x530 [ 62.334586][ T24] ? sg_remove_sfp_usercontext+0x3f2/0x530 [ 62.340395][ T24] ? process_scheduled_works+0x945/0x1830 [ 62.346376][ T24] process_scheduled_works+0xa2c/0x1830 [ 62.352019][ T24] ? __pfx_process_scheduled_works+0x10/0x10 [ 62.358218][ T24] ? assign_work+0x364/0x3d0 [ 62.363249][ T24] worker_thread+0x86d/0xd70 [ 62.367994][ T24] ? __kthread_parkme+0x169/0x1d0 [ 62.373134][ T24] ? __pfx_worker_thread+0x10/0x10 [ 62.378257][ T24] kthread+0x2f0/0x390 [ 62.382437][ T24] ? __pfx_worker_thread+0x10/0x10 [ 62.387557][ T24] ? __pfx_kthread+0x10/0x10 [ 62.392246][ T24] ret_from_fork+0x4b/0x80 [ 62.396664][ T24] ? __pfx_kthread+0x10/0x10 [ 62.401464][ T24] ret_from_fork_asm+0x1a/0x30 [ 62.406244][ T24] [ 62.409563][ T24] Kernel Offset: disabled [ 62.413915][ T24] Rebooting in 86400 seconds..