ci-upstream-rust-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-rust-kasan-gce/syz-executor1465428532 <...> Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. execve("ci-upstream-rust-kasan-gce/syz-executor1465428532", ["ci-upstream-rust-kasan-gce/syz-executor1465428532"], 0x7ffff5654330 /* 10 vars */) = 0 brk(NULL) = 0x55558a736000 brk(0x55558a736d80) = 0x55558a736d80 arch_prctl(ARCH_SET_FS, 0x55558a736400) = 0 set_tid_address(0x55558a7366d0) = 5625 set_robust_list(0x55558a7366e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-rust-kasan-gce/syz-executor1465428532", 4096) = 55 getrandom("\x8d\x3b\x51\x51\xfb\xc4\xc5\x49", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558a736d80 brk(0x55558a757d80) = 0x55558a757d80 brk(0x55558a758000) = 0x55558a758000 mprotect(0x7fee17628000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5626 attached , child_tidptr=0x55558a7366d0) = 5626 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] set_robust_list(0x55558a7366e0, 24 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5626] setpgid(0, 0) = 0 [pid 5626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5626] write(3, "1000", 4) = 4 [pid 5626] close(3) = 0 [pid 5626] write(1, "executing program\n", 18) = 18 executing program [pid 5626] mkdirat(AT_FDCWD, "./my_configfs", 0777) = 0 [pid 5626] mount(NULL, "./my_configfs", "configfs", 0, NULL) = 0 [pid 5626] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = 0 [pid 5626] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = 0 [pid 5626] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = 0 [pid 5626] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5626] write(3, "1", 1) = 1 [pid 5626] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = 0 [pid 5626] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5626] write(4, "dummy_udc.0", 11) = 11 [pid 5626] exit_group(0) = ? [pid 5626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5626, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5631 attached , child_tidptr=0x55558a7366d0) = 5631 [pid 5631] set_robust_list(0x55558a7366e0, 24 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] <... set_robust_list resumed>) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3) = 0 executing program [pid 5631] write(1, "executing program\n", 18) = 18 [pid 5631] mkdirat(AT_FDCWD, "./my_configfs", 0777) = -1 EEXIST (File exists) [pid 5631] mount(NULL, "./my_configfs", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5631] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5631] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = -1 EEXIST (File exists) [pid 5631] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = -1 EEXIST (File exists) [pid 5631] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5631] write(3, "1", 1) = -1 EBUSY (Device or resource busy) [pid 5631] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = -1 EEXIST (File exists) [pid 5631] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5631] write(4, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5631] exit_group(0) = ? [pid 5631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5632 attached , child_tidptr=0x55558a7366d0) = 5632 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] set_robust_list(0x55558a7366e0, 24) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5632] setpgid(0, 0) = 0 [ 118.298661][ T203] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5632] write(3, "1000", 4) = 4 [pid 5632] close(3) = 0 executing program [pid 5632] write(1, "executing program\n", 18) = 18 [pid 5632] mkdirat(AT_FDCWD, "./my_configfs", 0777) = -1 EEXIST (File exists) [pid 5632] mount(NULL, "./my_configfs", "configfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5632] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1", 0777) = -1 EEXIST (File exists) [pid 5632] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1", 0777) = -1 EEXIST (File exists) [pid 5632] mkdirat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0", 0777) = -1 EEXIST (File exists) [pid 5632] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/functions/midi2.usb0/ep.0/block.0/direction", O_WRONLY) = 3 [pid 5632] write(3, "1", 1) = -1 EBUSY (Device or resource busy) [pid 5632] symlinkat("./my_configfs/usb_gadget/g1/functions/midi2.usb0", AT_FDCWD, "./my_configfs/usb_gadget/g1/configs/c.1/midi2.usb0") = -1 EEXIST (File exists) [pid 5632] openat(AT_FDCWD, "./my_configfs/usb_gadget/g1/UDC", O_WRONLY) = 4 [pid 5632] write(4, "dummy_udc.0", 11) = -1 EBUSY (Device or resource busy) [pid 5632] exit_group(0) = ? [pid 5632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 118.463434][ T203] usb 1-1: Dual-Role OTG device on HNP port [ 118.463731][ T203] usb 1-1: New USB device found, idVendor=0000, idProduct=0000, bcdDevice= 7.02 [ 118.463749][ T203] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [ 118.524096][ T203] gspca_main: spca501-2.14.0 probing 0000:0000 [ 118.532481][ T203] gspca_spca501: reg write: error -32 [ 118.532522][ T203] spca501 1-1:1.0: Reg write failed for 0x02,0x0f,0x05 [ 118.532761][ T203] spca501 1-1:1.0: probe with driver spca501 failed with error -22 [ 118.558155][ C0] Oops: general protection fault, probably for non-canonical address 0xdffffc00000000ee: 0000 [#1] SMP KASAN PTI [ 118.558175][ C0] KASAN: null-ptr-deref in range [0x0000000000000770-0x0000000000000777] [ 118.558202][ C0] CPU: 0 UID: 0 PID: 16 Comm: ktimers/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 118.558220][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 118.558230][ C0] RIP: 0010:f_midi2_stop_eps+0x28e/0x4d0 [ 118.558281][ C0] Code: 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 27 c6 de fa 41 bf 70 07 00 00 4d 03 3e 4c 89 f8 48 c1 e8 03 48 89 44 24 18 <42> 0f b6 04 28 84 c0 0f 85 12 02 00 00 41 8b 1f 31 ff 89 de e8 c9 [ 118.558315][ C0] RSP: 0018:ffffc900001576f8 EFLAGS: 00010206 [ 118.558339][ C0] RAX: 00000000000000ee RBX: ffff8880466ec120 RCX: ffff88801daf8000 [ 118.558355][ C0] RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 [ 118.558369][ C0] RBP: ffff8880466ec100 R08: ffffffff8fd0c47f R09: 1ffffffff1fa188f [ 118.558389][ C0] R10: dffffc0000000000 R11: fffffbfff1fa1890 R12: ffff8880466ec770 [ 118.558400][ C0] R13: dffffc0000000000 R14: ffff8880466ec128 R15: 0000000000000770 [ 118.558412][ C0] FS: 0000000000000000(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 [ 118.558424][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 118.558435][ C0] CR2: 000055558a7366d0 CR3: 00000000378c8000 CR4: 00000000003526f0 [ 118.558449][ C0] Call Trace: [ 118.558454][ C0] [ 118.558464][ C0] f_midi2_set_alt+0x11c/0xf00 [ 118.558481][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 118.558498][ C0] ? rcu_is_watching+0x15/0xb0 [ 118.558518][ C0] composite_setup+0x1ffd/0x3480 [ 118.558545][ C0] configfs_composite_setup+0xbd/0x100 [ 118.558567][ C0] dummy_timer+0x2ea8/0x4b30 [ 118.558594][ C0] ? __lock_acquire+0x6df/0x2e40 [ 118.558619][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 118.558645][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 118.558669][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 118.558684][ C0] ? __pfx_dummy_timer+0x10/0x10 [ 118.558707][ C0] __hrtimer_run_queues+0x3eb/0xaf0 [ 118.558735][ C0] hrtimer_run_softirq+0x18f/0x260 [ 118.558758][ C0] handle_softirqs+0x1d9/0x6c0 [ 118.558778][ C0] run_ktimerd+0x69/0x100 [ 118.558796][ C0] smpboot_thread_fn+0x57c/0xa80 [ 118.558815][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 118.558835][ C0] kthread+0x388/0x470 [ 118.558856][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 118.558874][ C0] ? __pfx_kthread+0x10/0x10 [ 118.558894][ C0] ret_from_fork+0x514/0xb70 [ 118.558917][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 118.558938][ C0] ? __switch_to+0xc89/0x1420 [ 118.558957][ C0] ? __pfx_kthread+0x10/0x10 [ 118.558978][ C0] ret_from_fork_asm+0x1a/0x30 [ 118.559005][ C0] [ 118.559010][ C0] Modules linked in: [ 118.559070][ C0] ---[ end trace 0000000000000000 ]--- [ 118.559204][ C0] RIP: 0010:f_midi2_stop_eps+0x28e/0x4d0 [ 118.559225][ C0] Code: 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 27 c6 de fa 41 bf 70 07 00 00 4d 03 3e 4c 89 f8 48 c1 e8 03 48 89 44 24 18 <42> 0f b6 04 28 84 c0 0f 85 12 02 00 00 41 8b 1f 31 ff 89 de e8 c9 [ 118.559237][ C0] RSP: 0018:ffffc900001576f8 EFLAGS: 00010206 [ 118.559251][ C0] RAX: 00000000000000ee RBX: ffff8880466ec120 RCX: ffff88801daf8000 [ 118.559262][ C0] RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 [ 118.559271][ C0] RBP: ffff8880466ec100 R08: ffffffff8fd0c47f R09: 1ffffffff1fa188f [ 118.559283][ C0] R10: dffffc0000000000 R11: fffffbfff1fa1890 R12: ffff8880466ec770 [ 118.559294][ C0] R13: dffffc0000000000 R14: ffff8880466ec128 R15: 0000000000000770 [ 118.559305][ C0] FS: 0000000000000000(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 [ 118.559318][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 118.559328][ C0] CR2: 000055558a7366d0 CR3: 00000000378c8000 CR4: 00000000003526f0 [ 118.559344][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 118.559954][ C0] Kernel Offset: disabled