./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3834999149 <...> Warning: Permanently added '10.128.10.9' (ED25519) to the list of known hosts. execve("./syz-executor3834999149", ["./syz-executor3834999149"], 0x7ffdbad6f9c0 /* 10 vars */) = 0 brk(NULL) = 0x555575d9a000 brk(0x555575d9ad40) = 0x555575d9ad40 arch_prctl(ARCH_SET_FS, 0x555575d9a3c0) = 0 set_tid_address(0x555575d9a690) = 5822 set_robust_list(0x555575d9a6a0, 24) = 0 rseq(0x555575d9ace0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3834999149", 4096) = 28 getrandom("\x82\x59\x15\x84\x0c\xcc\x8a\xbe", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555575d9ad40 brk(0x555575dbbd40) = 0x555575dbbd40 brk(0x555575dbc000) = 0x555575dbc000 mprotect(0x7f673e67a000, 16384, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5823 attached , child_tidptr=0x555575d9a690) = 5823 [pid 5823] set_robust_list(0x555575d9a6a0, 24) = 0 [pid 5823] socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI) = 3 [pid 5823] openat(AT_FDCWD, "/dev/vhci", O_RDWR) = 4 [pid 5823] dup2(4, 202) = 202 [pid 5823] close(4) = 0 [pid 5823] write(202, "\xff\x00", 2) = 2 [pid 5823] read(202, "\xff\x00\x00\x00", 4) = 4 [pid 5823] rt_sigaction(SIGRT_1, {sa_handler=0x7f673e61dc60, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f673e60f2e0}, NULL, 8) = 0 [pid 5823] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5823] mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f673ddaa000 [pid 5823] mprotect(0x7f673ddab000, 8388608, PROT_READ|PROT_WRITE) = 0 [pid 5823] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5823] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f673e5aa990, parent_tid=0x7f673e5aa990, exit_signal=0, stack=0x7f673ddaa000, stack_size=0x800300, tls=0x7f673e5aa6c0}./strace-static-x86_64: Process 5827 attached [pid 5827] rseq(0x7f673e5aafe0, 0x20, 0, 0x53053053 [pid 5823] <... clone3 resumed> => {parent_tid=[2]}, 88) = 2 [pid 5823] rt_sigprocmask(SIG_SETMASK, [], [pid 5827] <... rseq resumed>) = 0 [pid 5823] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5827] set_robust_list(0x7f673e5aa9a0, 24) = 0 [pid 5827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5827] read(202, [pid 5823] ioctl(3, HCIDEVUP [pid 5827] <... read resumed>"\x01\x03\x0c\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x03\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x03\x10\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x03\x10", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x01\x10\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x01\x10", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x09\x10\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x0a", iov_len=2}, {iov_base="\x01\x09\x10", iov_len=3}, {iov_base="\x00\xaa\xaa\xaa\xaa\xaa\xaa", iov_len=7}], 4) = 13 [pid 5827] read(202, "\x01\x05\x10\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x0b", iov_len=2}, {iov_base="\x01\x05\x10", iov_len=3}, {iov_base="\x00\xfd\x03\x60\x04\x00\x06\x00", iov_len=8}], 4) = 14 [pid 5827] read(202, "\x01\x23\x0c\x00", 1024) = 4 [ 91.671146][ T5825] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 91.679991][ T5825] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 91.688504][ T5825] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x23\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x14\x0c\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x14\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x38\x0c\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x38\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x39\x0c\x00", 1024) = 4 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x39\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, "\x01\x16\x0c\x02\x00\x7d", 1024) = 6 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\xfc", iov_len=2}, {iov_base="\x01\x16\x0c", iov_len=3}, {iov_base="\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"..., iov_len=249}], 4) = 255 [pid 5827] read(202, [pid 5823] <... ioctl resumed>, 0) = -1 EALREADY (Operation already in progress) [pid 5823] ioctl(3, HCISETSCAN [pid 5827] <... read resumed>"\x01\x1a\x0c\x01\x02", 1024) = 5 [pid 5827] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x0e\x04", iov_len=2}, {iov_base="\x01\x1a\x0c", iov_len=3}, {iov_base="\x00", iov_len=1}], 4) = 7 [pid 5823] <... ioctl resumed>, 0x7ffddeb16bd8) = 0 [ 91.739716][ T5825] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 91.749481][ T5825] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [pid 5827] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0 [pid 5823] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x04\x0a", iov_len=2}, {iov_base="\xaa\xaa\xaa\xaa\xaa\x10\x00\x00\x00\x01", iov_len=10}], 3 [pid 5827] madvise(0x7f673ddaa000, 8372224, MADV_DONTNEED [pid 5823] <... writev resumed>) = 13 [pid 5827] <... madvise resumed>) = 0 [pid 5823] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x03\x0b", iov_len=2}, {iov_base="\x00\xc8\x00\xaa\xaa\xaa\xaa\xaa\x10\x01\x00", iov_len=11}], 3 [pid 5827] exit(0) = ? [pid 5823] <... writev resumed>) = 14 [pid 5827] +++ exited with 0 +++ [pid 5823] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\v\v", iov_len=2}, {iov_base="\x00\xc8\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=11}], 3) = 14 [pid 5823] writev(202, [{iov_base="\x04", iov_len=1}, {iov_base="\x3e\x13", iov_len=2}, {iov_base="\x01\x00\xc9\x00\x01\x00\xaa\xaa\xaa\xaa\xaa\x11\x00\x00\x00\x00\x00\x00\x00", iov_len=19}], 3) = 22 [pid 5823] close(3) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5823] getppid() = 0 [pid 5823] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5823] unshare(CLONE_NEWNS) = 0 [pid 5823] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5823] unshare(CLONE_NEWIPC) = 0 [pid 5823] unshare(CLONE_NEWCGROUP) = 0 [pid 5823] unshare(CLONE_NEWUTS) = 0 [ 91.881112][ T980] cfg80211: failed to load regulatory.db [pid 5823] unshare(CLONE_SYSVSEM) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "16777216", 8) = 8 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "536870912", 9) = 9 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "8192", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5823] close(3) = 0 [pid 5823] getpid() = 1 [pid 5823] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0d db d7 62 0c 85 c9 44 0f 44 c1 31 c9 48 3d 30 63 5d 93 41 0f [ 211.772943][ C0] RSP: 0018:ffffc90000007b70 EFLAGS: 00000083 [ 211.772961][ C0] RAX: ffff8880b8627ad8 RBX: ffff8880b8627ad8 RCX: 0000000000000000 [ 211.772973][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8de95280 [ 211.772984][ C0] RBP: ffffffff81ae60d2 R08: 0000000000000001 R09: 0000000000000001 [ 211.772995][ C0] R10: dffffc0000000000 R11: fffffbfff1f3fc1f R12: 0000000000000000 [ 211.773006][ C0] R13: ffff8880b8627ad8 R14: 0000000000000000 R15: 0000000000000000 [ 211.773017][ C0] FS: 0000000000000000(0000) GS:ffff888125c85000(0000) knlGS:0000000000000000 [ 211.773030][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 211.773041][ C0] CR2: 0000200000000600 CR3: 000000000df38000 CR4: 00000000003526f0 [ 211.773056][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 211.773065][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 211.773076][ C0] Call Trace: [ 211.773086][ C0] [ 211.773094][ C0] ? __netif_schedule+0xb8/0x2c0 [ 211.773120][ C0] ? advance_sched+0x9f8/0xc90 [ 211.773142][ C0] ? __hrtimer_run_queues+0x602/0xc60 [ 211.773165][ C0] lock_acquire+0x120/0x360 [ 211.773185][ C0] ? __hrtimer_run_queues+0x602/0xc60 [ 211.773210][ C0] ? advance_sched+0x9f8/0xc90 [ 211.773228][ C0] ? advance_sched+0x9f8/0xc90 [ 211.773246][ C0] ? advance_sched+0x9f8/0xc90 [ 211.773267][ C0] _raw_spin_lock_irq+0xa2/0xf0 [ 211.773292][ C0] ? __hrtimer_run_queues+0x602/0xc60 [ 211.773315][ C0] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 211.773340][ C0] __hrtimer_run_queues+0x602/0xc60 [ 211.773371][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 211.773393][ C0] ? read_tsc+0x9/0x20 [ 211.773416][ C0] hrtimer_interrupt+0x45b/0xaa0 [ 211.773451][ C0] __sysvec_apic_timer_interrupt+0x10b/0x410 [ 211.773477][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 211.773499][ C0] [ 211.773505][ C0] [ 211.773511][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 211.773529][ C0] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 211.773552][ C0] Code: cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 f6 28 00 f3 0f 1e fa fb f4 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 [ 211.773565][ C0] RSP: 0018:ffffffff8de07d80 EFLAGS: 000002c6 [ 211.773578][ C0] RAX: 6fd2b778457c7700 RBX: ffffffff81974c68 RCX: 6fd2b778457c7700 [ 211.773591][ C0] RDX: 0000000000000001 RSI: ffffffff8d96eae6 RDI: ffffffff8be1b8c0 [ 211.773602][ C0] RBP: ffffffff8de07ea8 R08: ffff8880b8632f5b R09: 1ffff110170c65eb [ 211.773615][ C0] R10: dffffc0000000000 R11: ffffed10170c65ec R12: ffffffff8f9fe0f0 [ 211.773627][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 1ffffffff1bd2a50 [ 211.773640][ C0] ? do_idle+0x1e8/0x510 [ 211.773667][ C0] default_idle+0x13/0x20 [ 211.773682][ C0] default_idle_call+0x74/0xb0 [ 211.773697][ C0] do_idle+0x1e8/0x510 [ 211.773723][ C0] ? __pfx_do_idle+0x10/0x10 [ 211.773746][ C0] ? lockdep_hardirqs_on+0x9c/0x150 [ 211.773770][ C0] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 211.773791][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 211.773815][ C0] cpu_startup_entry+0x44/0x60 [ 211.773839][ C0] rest_init+0x2de/0x300 [ 211.773855][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 211.773879][ C0] start_kernel+0x47d/0x500 [ 211.773905][ C0] x86_64_start_reservations+0x24/0x30 [ 211.773922][ C0] x86_64_start_kernel+0x143/0x1c0 [ 211.773939][ C0] common_startup_64+0x13e/0x147 [ 211.773964][ C0] [ 211.773972][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.169 msecs [ 211.774795][ C1] rcu: rcu_preempt kthread starved for 8786 jiffies! g12293 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 212.190591][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 212.200594][ C1] rcu: RCU grace-period kthread stack dump: [ 212.206504][ C1] task:rcu_preempt state:R running task stack:27192 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 212.220049][ C1] Call Trace: [ 212.223358][ C1] [ 212.226323][ C1] __schedule+0x16a2/0x4cb0 [ 212.230878][ C1] ? do_raw_spin_unlock+0x122/0x240 [ 212.236124][ C1] ? schedule+0x165/0x360 [ 212.240495][ C1] ? __lock_acquire+0xab9/0xd20 [ 212.245474][ C1] ? __pfx___schedule+0x10/0x10 [ 212.250381][ C1] ? schedule+0x91/0x360 [ 212.254663][ C1] schedule+0x165/0x360 [ 212.258865][ C1] schedule_timeout+0x12b/0x270 [ 212.263758][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 212.269194][ C1] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 212.275144][ C1] ? __pfx_process_timeout+0x10/0x10 [ 212.280491][ C1] ? prepare_to_swait_event+0x341/0x380 [ 212.286087][ C1] rcu_gp_fqs_loop+0x301/0x1540 [ 212.290998][ C1] ? __pfx_rcu_watching_snap_recheck+0x10/0x10 [ 212.297205][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 212.302530][ C1] ? _raw_spin_unlock_irq+0x2e/0x50 [ 212.307793][ C1] ? finish_swait+0xcd/0x1f0 [ 212.312431][ C1] rcu_gp_kthread+0x99/0x390 [ 212.317071][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 212.322310][ C1] ? __kthread_parkme+0x7b/0x200 [ 212.327293][ C1] ? __kthread_parkme+0x1a1/0x200 [ 212.332374][ C1] kthread+0x70e/0x8a0 [ 212.336485][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 212.341720][ C1] ? __pfx_kthread+0x10/0x10 [ 212.346347][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 212.351581][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 212.356813][ C1] ? __pfx_kthread+0x10/0x10 [ 212.361537][ C1] ret_from_fork+0x3fc/0x770 [ 212.366186][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 212.371350][ C1] ? __switch_to_asm+0x39/0x70 [ 212.376157][ C1] ? __switch_to_asm+0x33/0x70 [ 212.380962][ C1] ? __pfx_kthread+0x10/0x10 [ 212.385599][ C1] ret_from_fork_asm+0x1a/0x30 [ 212.390421][ C1] [ 212.393471][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 212.399838][ C1] CPU: 1 UID: 0 PID: 5483 Comm: dhcpcd Not tainted 6.16.0-rc2-syzkaller-00378-gb67ec639010f #0 PREEMPT(full) [ 212.411506][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 212.421597][ C1] RIP: 0010:smp_call_function_many_cond+0xf69/0x12d0 [ 212.428366][ C1] Code: 00 45 8b 2f 44 89 ee 83 e6 01 31 ff e8 60 78 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 0b 74 0b 00 eb 37 f3 90 <43> 0f b6 04 2c 84 c0 75 10 41 f7 07 01 00 00 00 74 1e e8 f0 73 0b [ 212.448007][ C1] RSP: 0018:ffffc90003b4f580 EFLAGS: 00000293 [ 212.454119][ C1] RAX: ffffffff81b4d830 RBX: ffff8880b873b040 RCX: ffff88802ccada00 [ 212.462120][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 212.470116][ C1] RBP: ffffc90003b4f6e0 R08: ffffffff8f9fe0f7 R09: 1ffffffff1f3fc1e [ 212.478118][ C1] R10: dffffc0000000000 R11: fffffbfff1f3fc1f R12: 1ffff110170c835d [ 212.486119][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b8641ae8 [ 212.494119][ C1] FS: 00007f35ed12d740(0000) GS:ffff888125d85000(0000) knlGS:0000000000000000 [ 212.503080][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 212.509693][ C1] CR2: 000056067aade000 CR3: 00000000294ce000 CR4: 00000000003526f0 [ 212.517694][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 212.525699][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 212.533787][ C1] Call Trace: [ 212.537092][ C1] [ 212.540068][ C1] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 212.546447][ C1] ? ldt_dup_context+0x336/0x3e0 [ 212.551427][ C1] ? rcu_is_watching+0x15/0xb0 [ 212.556239][ C1] ? __pfx_flush_tlb_func+0x10/0x10 [ 212.561468][ C1] on_each_cpu_cond_mask+0x3f/0x80 [ 212.566620][ C1] flush_tlb_mm_range+0x6b1/0x12c0 [ 212.571865][ C1] ? __pfx_flush_tlb_mm_range+0x10/0x10 [ 212.577445][ C1] ? up_write+0x1c4/0x420 [ 212.581812][ C1] dup_mmap+0x15a0/0x1ac0 [ 212.586211][ C1] ? __pfx_dup_mmap+0x10/0x10 [ 212.590952][ C1] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 212.596889][ C1] ? mm_init+0xca7/0xf00 [ 212.601187][ C1] copy_mm+0x13c/0x4b0 [ 212.605304][ C1] copy_process+0x1706/0x3c00 [ 212.610059][ C1] ? copy_process+0x97f/0x3c00 [ 212.614881][ C1] ? __pfx_copy_process+0x10/0x10 [ 212.619985][ C1] kernel_clone+0x224/0x7f0 [ 212.624541][ C1] ? __pfx_kernel_clone+0x10/0x10 [ 212.629630][ C1] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 212.635233][ C1] __x64_sys_clone+0x18b/0x1e0 [ 212.640144][ C1] ? __pfx___x64_sys_clone+0x10/0x10 [ 212.645496][ C1] ? do_syscall_64+0xbe/0x3b0 [ 212.650222][ C1] do_syscall_64+0xfa/0x3b0 [ 212.654764][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 212.660028][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.666125][ C1] ? clear_bhb_loop+0x60/0xb0 [ 212.670853][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.676795][ C1] RIP: 0033:0x7f35ed201636 [ 212.681262][ C1] Code: 89 df e8 6d e8 f6 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 52 89 c5 85 c0 75 31 64 48 8b 04 25 10 00 00 [ 212.700903][ C1] RSP: 002b:00007ffca567fe50 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 212.709360][ C1] RAX: ffffffffffffffda RBX: 00007ffca567fe58 RCX: 00007f35ed201636 [ 212.717365][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 212.725368][ C1] RBP: 00007ffca56a03a0 R08: 0000000000000000 R09: 0000000000000001 [ 212.733364][ C1] R10: 00007f35ed12da10 R11: 0000000000000246 R12: 00007ffca567ff90 [ 212.741364][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 00005616cd398ac0 [ 212.749424][ C1]