./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1349576222 <...> Warning: Permanently added '10.128.1.104' (ECDSA) to the list of known hosts. execve("./syz-executor1349576222", ["./syz-executor1349576222"], 0x7ffd6e18a770 /* 10 vars */) = 0 brk(NULL) = 0x555555aee000 brk(0x555555aeec40) = 0x555555aeec40 arch_prctl(ARCH_SET_FS, 0x555555aee300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1349576222", 4096) = 28 brk(0x555555b0fc40) = 0x555555b0fc40 brk(0x555555b10000) = 0x555555b10000 mprotect(0x7f6162d4b000, 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 5075 attached , child_tidptr=0x555555aee5d0) = 5075 [pid 5075] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5075] setsid() = 1 [pid 5075] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5075] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5075] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5075] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5075] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5075] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5075] unshare(CLONE_NEWNS) = 0 [pid 5075] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5075] unshare(CLONE_NEWIPC) = 0 [pid 5075] unshare(CLONE_NEWCGROUP) = 0 [pid 5075] unshare(CLONE_NEWUTS) = 0 [pid 5075] unshare(CLONE_SYSVSEM) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "16777216", 8) = 8 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "536870912", 9) = 9 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1024", 4) = 4 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "8192", 4) = 4 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1024", 4) = 4 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1024", 4) = 4 [pid 5075] close(3) = 0 [pid 5075] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5075] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5075] close(3) = 0 [pid 5075] getpid() = 1 [pid 5075] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 12]) = 0 [ 76.890854][ T5075] BUG: unable to handle page fault for address: ffffffffffffffa0 [ 76.898622][ T5075] #PF: supervisor read access in kernel mode [ 76.904621][ T5075] #PF: error_code(0x0000) - not-present page [ 76.910610][ T5075] PGD c48f067 P4D c48f067 PUD c491067 PMD 0 [ 76.916629][ T5075] Oops: 0000 [#1] PREEMPT SMP KASAN [ 76.921829][ T5075] CPU: 1 PID: 5075 Comm: syz-executor134 Not tainted 6.2.0-rc6-syzkaller-01486-g0b34d68049b0 #0 [ 76.932260][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 76.942314][ T5075] RIP: 0010:atm_tc_destroy+0x7d/0x250 [ 76.947799][ T5075] Code: 0f 84 52 01 00 00 48 bd 00 00 00 00 00 fc ff df e8 88 0e 8b f9 4c 8d 73 28 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 70 01 00 00 <48> 8b 7b 28 e8 ea f4 f2 ff 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 [ 76.967424][ T5075] RSP: 0018:ffffc90003c0f3f0 EFLAGS: 00010246 [ 76.973499][ T5075] RAX: 1ffffffffffffff4 RBX: ffffffffffffff78 RCX: 0000000000000000 [ 76.981476][ T5075] RDX: ffff88802695d7c0 RSI: ffffffff87f5ed08 RDI: ffff888022026000 [ 76.989451][ T5075] RBP: dffffc0000000000 R08: 0000000000000007 R09: fffffffffffff000 [ 76.997442][ T5075] R10: ffffffffffffffea R11: 0000000000000000 R12: ffff888022026370 [ 77.005428][ T5075] R13: ffff888022026000 R14: ffffffffffffffa0 R15: ffff888021d6c000 [ 77.013412][ T5075] FS: 0000555555aee300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 77.022346][ T5075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.028930][ T5075] CR2: ffffffffffffffa0 CR3: 000000001c561000 CR4: 00000000003506e0 [ 77.036921][ T5075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.044900][ T5075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.052898][ T5075] Call Trace: [ 77.056177][ T5075] [ 77.059115][ T5075] ? atm_tc_put+0x530/0x530 [ 77.063630][ T5075] qdisc_create+0xaca/0x1150 [ 77.068233][ T5075] ? tc_get_qdisc+0xb40/0xb40 [ 77.072919][ T5075] tc_modify_qdisc+0x948/0x19c0 [ 77.077799][ T5075] ? qdisc_create+0x1150/0x1150 [ 77.082673][ T5075] ? bpf_lsm_capable+0x9/0x10 [ 77.087371][ T5075] ? qdisc_create+0x1150/0x1150 [ 77.092231][ T5075] rtnetlink_rcv_msg+0x43e/0xca0 [ 77.097183][ T5075] ? rtnl_getlink+0xb00/0xb00 [ 77.101870][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.107875][ T5075] ? do_syscall_64+0x39/0xb0 [ 77.112504][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.118513][ T5075] netlink_rcv_skb+0x165/0x440 [ 77.123307][ T5075] ? rtnl_getlink+0xb00/0xb00 [ 77.128000][ T5075] ? netlink_ack+0x1370/0x1370 [ 77.132784][ T5075] ? netlink_deliver_tap+0x1b1/0xc50 [ 77.138087][ T5075] netlink_unicast+0x547/0x7f0 [ 77.142881][ T5075] ? netlink_attachskb+0x890/0x890 [ 77.148025][ T5075] ? __virt_addr_valid+0x61/0x2e0 [ 77.153080][ T5075] ? __phys_addr_symbol+0x30/0x70 [ 77.158115][ T5075] ? __check_object_size+0x2e2/0x5a0 [ 77.163421][ T5075] netlink_sendmsg+0x91b/0xe10 [ 77.168203][ T5075] ? netlink_unicast+0x7f0/0x7f0 [ 77.173153][ T5075] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 77.178447][ T5075] ? netlink_unicast+0x7f0/0x7f0 [ 77.183402][ T5075] sock_sendmsg+0xde/0x190 [ 77.187828][ T5075] ____sys_sendmsg+0x71c/0x900 [ 77.192596][ T5075] ? copy_msghdr_from_user+0xfc/0x150 [ 77.197988][ T5075] ? kernel_sendmsg+0x50/0x50 [ 77.202686][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.208867][ T5075] ___sys_sendmsg+0x110/0x1b0 [ 77.213560][ T5075] ? do_recvmmsg+0x6e0/0x6e0 [ 77.218177][ T5075] ? lock_release+0x810/0x810 [ 77.222854][ T5075] ? ptrace_stop.part.0+0x4a3/0x8e0 [ 77.228050][ T5075] ? do_raw_spin_lock+0x124/0x2b0 [ 77.233075][ T5075] ? rwlock_bug.part.0+0x90/0x90 [ 77.238015][ T5075] ? _raw_spin_lock_irq+0x45/0x50 [ 77.243060][ T5075] ? __fget_light+0x20a/0x270 [ 77.247760][ T5075] __sys_sendmsg+0xf7/0x1c0 [ 77.252281][ T5075] ? __sys_sendmsg_sock+0x40/0x40 [ 77.257323][ T5075] ? lock_downgrade+0x6e0/0x6e0 [ 77.262181][ T5075] ? lockdep_hardirqs_on+0x7d/0x100 [ 77.267402][ T5075] ? _raw_spin_unlock_irq+0x2e/0x50 [ 77.272623][ T5075] ? ptrace_notify+0xfe/0x140 [ 77.277305][ T5075] do_syscall_64+0x39/0xb0 [ 77.281983][ T5075] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 77.287886][ T5075] RIP: 0033:0x7f6162cddba9 [ 77.292301][ T5075] Code: 28 c3 e8 1a 15 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 77.311918][ T5075] RSP: 002b:00007ffe242b7018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.320336][ T5075] RAX: ffffffffffffffda RBX: 00007f6162d4bed0 RCX: 00007f6162cddba9 [ 77.328307][ T5075] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 [ 77.336290][ T5075] RBP: 00007ffe242b7028 R08: 00007f6162d4be40 R09: 00007f6162d4be40 [ 77.344436][ T5075] R10: 00007f6162d4be40 R11: 0000000000000246 R12: 00007ffe242b7030 [ 77.352417][ T5075] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 77.360410][ T5075] [ 77.363439][ T5075] Modules linked in: [ 77.367333][ T5075] CR2: ffffffffffffffa0 [ 77.371511][ T5075] ---[ end trace 0000000000000000 ]--- [ 77.377047][ T5075] RIP: 0010:atm_tc_destroy+0x7d/0x250 [ 77.382434][ T5075] Code: 0f 84 52 01 00 00 48 bd 00 00 00 00 00 fc ff df e8 88 0e 8b f9 4c 8d 73 28 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 70 01 00 00 <48> 8b 7b 28 e8 ea f4 f2 ff 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 [ 77.402048][ T5075] RSP: 0018:ffffc90003c0f3f0 EFLAGS: 00010246 [ 77.408127][ T5075] RAX: 1ffffffffffffff4 RBX: ffffffffffffff78 RCX: 0000000000000000 [ 77.416112][ T5075] RDX: ffff88802695d7c0 RSI: ffffffff87f5ed08 RDI: ffff888022026000 [ 77.424097][ T5075] RBP: dffffc0000000000 R08: 0000000000000007 R09: fffffffffffff000 [ 77.432068][ T5075] R10: ffffffffffffffea R11: 0000000000000000 R12: ffff888022026370 [ 77.440037][ T5075] R13: ffff888022026000 R14: ffffffffffffffa0 R15: ffff888021d6c000 [ 77.448023][ T5075] FS: 0000555555aee300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 77.456969][ T5075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.463565][ T5075] CR2: ffffffffffffffa0 CR3: 000000001c561000 CR4: 00000000003506e0 [ 77.471549][ T5075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.479518][ T5075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.487498][ T5075] Kernel panic - not syncing: Fatal exception [ 77.493869][ T5075] Kernel Offset: disabled [ 77.498216][ T5075] Rebooting in 86400 seconds..