./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2841218958 <...> DUID 00:04:cd:7d:74:7d:04:96:3f:c0:f2:1a:da:5a:49:b1:9f:fb forked to background, child pid 3190 [ 28.122497][ T3191] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.133501][ T3191] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. execve("./syz-executor2841218958", ["./syz-executor2841218958"], 0x7ffd63354380 /* 10 vars */) = 0 brk(NULL) = 0x555555eaf000 brk(0x555555eafc40) = 0x555555eafc40 arch_prctl(ARCH_SET_FS, 0x555555eaf300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2841218958", 4096) = 28 brk(0x555555ed0c40) = 0x555555ed0c40 brk(0x555555ed1000) = 0x555555ed1000 mprotect(0x7fd9321d7000, 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 3612 attached , child_tidptr=0x555555eaf5d0) = 3612 [pid 3612] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3612] setsid() = 1 [pid 3612] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3612] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3612] unshare(CLONE_NEWNS) = 0 [pid 3612] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3612] unshare(CLONE_NEWIPC) = 0 [pid 3612] unshare(CLONE_NEWCGROUP) = 0 [pid 3612] unshare(CLONE_NEWUTS) = 0 [pid 3612] unshare(CLONE_SYSVSEM) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "16777216", 8) = 8 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "536870912", 9) = 9 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "8192", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024", 4) = 4 [pid 3612] close(3) = 0 [pid 3612] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3612] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3612] close(3) = 0 [pid 3612] getpid() = 1 [pid 3612] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< features=UFFD_FEATURE_PAGEFAULT_FLAG_WP|UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_EVENT_REMAP|UFFD_FEATURE_EVENT_REMOVE|UFFD_FEATURE_MISSING_HUGETLBFS|UFFD_FEATURE_MISSING_SHMEM|UFFD_FEATURE_EVENT_UNMAP|UFFD_FEATURE_SIGBUS|UFFD_FEATURE_THREAD_ID|UFFD_FEATURE_MINOR_HUGETLBFS|UFFD_FEATURE_MINOR_SHMEM|0x800, ioctls=1<<_UFFDIO_REGISTER|1<<_UFFDIO_UNREGISTER|1<<_UFFDIO_API}) = 0 [pid 3612] ioctl(4, UFFDIO_REGISTER, {range={start=0x200e2000, len=0xc00000}, mode=UFFDIO_REGISTER_MODE_MISSING, ioctls=1<<_UFFDIO_WAKE|1<<_UFFDIO_COPY|1<<_UFFDIO_ZEROPAGE}) = 0 [pid 3612] close(3) = 0 syzkaller login: [ 51.330268][ T3612] ------------[ cut here ]------------ [ 51.330278][ T3612] WARNING: CPU: 0 PID: 3612 at mm/mmap.c:1096 vma_merge+0x32a/0x870 [ 51.344286][ T3612] Modules linked in: [ 51.348430][ T3612] CPU: 0 PID: 3612 Comm: syz-executor284 Not tainted 5.19.0-rc1-next-20220609-syzkaller #0 [ 51.358545][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.368760][ T3612] RIP: 0010:vma_merge+0x32a/0x870 [ 51.373787][ T3612] Code: c4 ff 4c 89 ee 4c 89 e7 e8 33 50 c4 ff 4d 39 ec 0f 86 13 04 00 00 e8 35 54 c4 ff e8 30 54 c4 ff 45 31 e4 eb a1 e8 26 54 c4 ff <0f> 0b e9 49 fe ff ff e8 1a 54 c4 ff 48 8d bd 88 00 00 00 48 b8 00 [ 51.393648][ T3612] RSP: 0018:ffffc90002effc80 EFLAGS: 00010293 [ 51.399830][ T3612] RAX: 0000000000000000 RBX: ffff88802725c6c0 RCX: 0000000000000000 [ 51.407901][ T3612] RDX: ffff888023a5ba80 RSI: ffffffff81b6994a RDI: 0000000000000006 [ 51.415906][ T3612] RBP: ffff88802725ce58 R08: 0000000000000006 R09: 0000000020600000 [ 51.423990][ T3612] R10: 0000000020ce2000 R11: 0000000000000001 R12: 0000000020ce2000 [ 51.432006][ T3612] R13: 0000000020600000 R14: ffff88802725c6c0 R15: 0000000020600000 [ 51.440041][ T3612] FS: 0000555555eaf300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 51.449060][ T3612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.455711][ T3612] CR2: 00007fd9321db130 CR3: 000000001d521000 CR4: 00000000003506f0 [ 51.463807][ T3612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.471928][ T3612] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.480023][ T3612] Call Trace: [ 51.483316][ T3612] [ 51.486253][ T3612] userfaultfd_release+0x4c5/0x670 [ 51.491471][ T3612] ? userfaultfd_event_wait_completion+0xbd0/0xbd0 [ 51.498108][ T3612] ? ima_file_free+0xb6/0x410 [ 51.502810][ T3612] __fput+0x277/0x9d0 [ 51.506994][ T3612] ? userfaultfd_event_wait_completion+0xbd0/0xbd0 [ 51.513939][ T3612] task_work_run+0xdd/0x1a0 [ 51.518718][ T3612] ptrace_notify+0x114/0x140 [ 51.523339][ T3612] syscall_exit_to_user_mode_prepare+0xdb/0x230 [ 51.529672][ T3612] syscall_exit_to_user_mode+0x9/0x50 [ 51.535077][ T3612] do_syscall_64+0x42/0xb0 [ 51.539586][ T3612] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.545503][ T3612] RIP: 0033:0x7fd93212d3d3 [ 51.550016][ T3612] Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 [ 51.569843][ T3612] RSP: 002b:00007fff6fccda28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 51.578350][ T3612] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fd93212d3d3 [ 51.586332][ T3612] RDX: 00000000200001c0 RSI: 00000000c020aa00 RDI: 0000000000000004 [ 51.594417][ T3612] RBP: 00007fff6fccda38 R08: 00007fd9321d7e40 R09: 00007fd9321d7e40 [ 51.602494][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6fccda40 [ 51.610556][ T3612] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.618717][ T3612] [ 51.621736][ T3612] Kernel panic - not syncing: panic_on_warn set ... [ 51.628307][ T3612] CPU: 0 PID: 3612 Comm: syz-executor284 Not tainted 5.19.0-rc1-next-20220609-syzkaller #0 [ 51.638273][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.648320][ T3612] Call Trace: [ 51.651593][ T3612] [ 51.654517][ T3612] dump_stack_lvl+0xcd/0x134 [ 51.659111][ T3612] panic+0x2d7/0x636 [ 51.663024][ T3612] ? panic_print_sys_info.part.0+0x10b/0x10b [ 51.669026][ T3612] ? __warn.cold+0x1d9/0x2cd [ 51.673614][ T3612] ? vma_merge+0x32a/0x870 [ 51.678117][ T3612] __warn.cold+0x1ea/0x2cd [ 51.682552][ T3612] ? vma_merge+0x32a/0x870 [ 51.686979][ T3612] report_bug+0x1bc/0x210 [ 51.691314][ T3612] handle_bug+0x3c/0x60 [ 51.695479][ T3612] exc_invalid_op+0x14/0x40 [ 51.699992][ T3612] asm_exc_invalid_op+0x1b/0x20 [ 51.704848][ T3612] RIP: 0010:vma_merge+0x32a/0x870 [ 51.709875][ T3612] Code: c4 ff 4c 89 ee 4c 89 e7 e8 33 50 c4 ff 4d 39 ec 0f 86 13 04 00 00 e8 35 54 c4 ff e8 30 54 c4 ff 45 31 e4 eb a1 e8 26 54 c4 ff <0f> 0b e9 49 fe ff ff e8 1a 54 c4 ff 48 8d bd 88 00 00 00 48 b8 00 [ 51.729485][ T3612] RSP: 0018:ffffc90002effc80 EFLAGS: 00010293 [ 51.735574][ T3612] RAX: 0000000000000000 RBX: ffff88802725c6c0 RCX: 0000000000000000 [ 51.743553][ T3612] RDX: ffff888023a5ba80 RSI: ffffffff81b6994a RDI: 0000000000000006 [ 51.751544][ T3612] RBP: ffff88802725ce58 R08: 0000000000000006 R09: 0000000020600000 [ 51.759530][ T3612] R10: 0000000020ce2000 R11: 0000000000000001 R12: 0000000020ce2000 [ 51.767501][ T3612] R13: 0000000020600000 R14: ffff88802725c6c0 R15: 0000000020600000 [ 51.775488][ T3612] ? vma_merge+0x32a/0x870 [ 51.779925][ T3612] userfaultfd_release+0x4c5/0x670 [ 51.785148][ T3612] ? userfaultfd_event_wait_completion+0xbd0/0xbd0 [ 51.791692][ T3612] ? ima_file_free+0xb6/0x410 [ 51.796465][ T3612] __fput+0x277/0x9d0 [ 51.800463][ T3612] ? userfaultfd_event_wait_completion+0xbd0/0xbd0 [ 51.806978][ T3612] task_work_run+0xdd/0x1a0 [ 51.811496][ T3612] ptrace_notify+0x114/0x140 [ 51.816097][ T3612] syscall_exit_to_user_mode_prepare+0xdb/0x230 [ 51.822341][ T3612] syscall_exit_to_user_mode+0x9/0x50 [ 51.827986][ T3612] do_syscall_64+0x42/0xb0 [ 51.832419][ T3612] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.838321][ T3612] RIP: 0033:0x7fd93212d3d3 [ 51.842751][ T3612] Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 [ 51.862394][ T3612] RSP: 002b:00007fff6fccda28 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 51.871257][ T3612] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fd93212d3d3 [ 51.879228][ T3612] RDX: 00000000200001c0 RSI: 00000000c020aa00 RDI: 0000000000000004 [ 51.887203][ T3612] RBP: 00007fff6fccda38 R08: 00007fd9321d7e40 R09: 00007fd9321d7e40 [ 51.895259][ T3612] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6fccda40 [ 51.903234][ T3612] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.911220][ T3612] [ 51.914537][ T3612] Kernel Offset: disabled [ 51.918909][ T3612] Rebooting in 86400 seconds..