./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4112021011 <...> [ 29.240825][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.256686][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 44.702317][ T27] kauditd_printk_skb: 37 callbacks suppressed [ 44.702329][ T27] audit: type=1400 audit(1657171674.259:73): avc: denied { transition } for pid=3591 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 44.732081][ T27] audit: type=1400 audit(1657171674.289:74): avc: denied { write } for pid=3591 comm="sh" path="pipe:[27568]" dev="pipefs" ino=27568 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. execve("./syz-executor4112021011", ["./syz-executor4112021011"], 0x7fff860db8a0 /* 10 vars */) = 0 brk(NULL) = 0x555555f34000 brk(0x555555f34c40) = 0x555555f34c40 arch_prctl(ARCH_SET_FS, 0x555555f34300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4112021011", 4096) = 28 brk(0x555555f55c40) = 0x555555f55c40 brk(0x555555f56000) = 0x555555f56000 mprotect(0x7f4936f43000, 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, child_tidptr=0x555555f345d0) = 3610 ./strace-static-x86_64: Process 3610 attached [pid 3610] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3610] setsid() = 1 [pid 3610] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [ 54.146271][ T27] audit: type=1400 audit(1657171683.709:75): avc: denied { execmem } for pid=3609 comm="syz-executor411" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 54.167591][ T27] audit: type=1400 audit(1657171683.729:76): avc: denied { mounton } for pid=3610 comm="syz-executor411" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [pid 3610] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3610] unshare(CLONE_NEWNS) = 0 [pid 3610] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3610] unshare(CLONE_NEWIPC) = 0 [pid 3610] unshare(CLONE_NEWCGROUP) = 0 [pid 3610] unshare(CLONE_NEWUTS) = 0 [pid 3610] unshare(CLONE_SYSVSEM) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "16777216", 8) = 8 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "536870912", 9) = 9 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "8192", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3610] close(3) = 0 [pid 3610] getpid() = 1 [pid 3610] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 f6 fd ff ff e8 c7 58 bc f8 e8 52 c4 b9 00 31 ff 89 c3 89 [ 54.672315][ T3612] RSP: 0018:ffffc90002fa7500 EFLAGS: 00010282 [ 54.679424][ T3612] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 54.688140][ T3612] RDX: ffff888072066140 RSI: ffffffff815ffb18 RDI: fffff520005f4e92 [ 54.696848][ T3612] RBP: ffff88806c0e8000 R08: 0000000000000005 R09: 0000000000000000 [ 54.705546][ T3612] R10: 0000000080000000 R11: 0000000000000001 R12: ffff88806c0e8c80 [ 54.714271][ T3612] R13: 0000000002000000 R14: ffff88806c0ea2d0 R15: ffff88806c0ea2c8 [ 54.722979][ T3612] FS: 0000555555f34300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 54.732392][ T3612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.739788][ T3612] CR2: 00007f098042d7d6 CR3: 0000000074733000 CR4: 00000000003506e0 [ 54.748569][ T3612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.757279][ T3612] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.765963][ T3612] Call Trace: [ 54.769740][ T3612] [ 54.773427][ T3612] ieee80211_bss_info_change_notify+0x9a/0xc0 [ 54.780016][ T3612] ieee80211_set_mcast_rate+0x37/0x40 [ 54.786175][ T3612] ? ieee80211_copy_mbssid_beacon+0x270/0x270 [ 54.793054][ T3612] nl80211_set_mcast_rate+0x317/0x610 [ 54.798957][ T3612] ? nl80211_tdls_cancel_channel_switch+0x5a0/0x5a0 [ 54.806403][ T3612] ? nl80211_pre_doit+0x100/0x600 [ 54.811936][ T3612] genl_family_rcv_msg_doit+0x228/0x320 [ 54.818289][ T3612] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 54.826411][ T3612] ? cap_capable+0x1f1/0x280 [ 54.831511][ T3612] ? ns_capable+0xd9/0x100 [ 54.836694][ T3612] genl_rcv_msg+0x328/0x580 [ 54.841687][ T3612] ? genl_get_cmd+0x480/0x480 [ 54.847122][ T3612] ? nl80211_tdls_cancel_channel_switch+0x5a0/0x5a0 [ 54.854457][ T3612] ? lock_release+0x780/0x780 [ 54.859645][ T3612] netlink_rcv_skb+0x153/0x420 [ 54.865166][ T3612] ? genl_get_cmd+0x480/0x480 [ 54.870365][ T3612] ? netlink_ack+0xa80/0xa80 [ 54.875839][ T3612] ? netlink_deliver_tap+0x1b1/0xc40 [ 54.881626][ T3612] genl_rcv+0x24/0x40 [ 54.886372][ T3612] netlink_unicast+0x543/0x7f0 [ 54.891638][ T3612] ? netlink_attachskb+0x880/0x880 [ 54.897516][ T3612] netlink_sendmsg+0x917/0xe10 [ 54.903005][ T3612] ? netlink_unicast+0x7f0/0x7f0 [ 54.908430][ T3612] ? netlink_unicast+0x7f0/0x7f0 [ 54.914124][ T3612] sock_sendmsg+0xcf/0x120 [ 54.919046][ T3612] ____sys_sendmsg+0x6eb/0x810 [ 54.924570][ T3612] ? kernel_sendmsg+0x50/0x50 [ 54.929862][ T3612] ? do_recvmmsg+0x6d0/0x6d0 [ 54.935182][ T3612] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 54.941656][ T3612] ? lockdep_hardirqs_on+0x79/0x100 [ 54.947693][ T3612] ___sys_sendmsg+0xf3/0x170 [ 54.953014][ T3612] ? sendmsg_copy_msghdr+0x160/0x160 [ 54.958822][ T3612] ? lock_release+0x780/0x780 [ 54.964312][ T3612] ? ptrace_stop.part.0+0x5ec/0xa80 [ 54.970018][ T3612] ? do_raw_spin_lock+0x120/0x2a0 [ 54.975845][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 54.981271][ T3612] ? _raw_spin_lock_irq+0x41/0x50 [ 54.987068][ T3612] ? __fget_light+0x20a/0x270 [ 54.992247][ T3612] __x64_sys_sendmsg+0x132/0x220 [ 54.997987][ T3612] ? __sys_sendmsg+0x1b0/0x1b0 [ 55.003479][ T3612] ? _raw_spin_unlock_irq+0x2a/0x40 [ 55.009199][ T3612] ? ptrace_notify+0xfa/0x140 [ 55.014654][ T3612] do_syscall_64+0x35/0xb0 [ 55.019561][ T3612] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 55.026280][ T3612] RIP: 0033:0x7f4936ed01c9 [ 55.031196][ T3612] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 [ 55.051606][ T3612] RSP: 002b:00007ffe59c888d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.060753][ T3612] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4936ed01c9 [ 55.069509][ T3612] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 55.077735][ T3612] RBP: 0000000000000000 R08: 0000000c00000000 R09: 0000000c00000000 [ 55.085993][ T3612] R10: 0000000c00000000 R11: 0000000000000246 R12: 0000000000000031 [ 55.094449][ T3612] R13: 00007ffe59c88940 R14: 00007ffe59c88930 R15: 00007f4936f49410 [ 55.102461][ T3612] [ 55.106102][ T3612] Kernel panic - not syncing: panic_on_warn set ... [ 55.112716][ T3612] CPU: 0 PID: 3612 Comm: syz-executor411 Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0 [ 55.123265][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 55.133356][ T3612] Call Trace: [ 55.136655][ T3612] [ 55.139607][ T3612] dump_stack_lvl+0xcd/0x134 [ 55.144229][ T3612] panic+0x2d7/0x636 [ 55.148157][ T3612] ? panic_print_sys_info.part.0+0x10b/0x10b [ 55.154175][ T3612] ? __warn.cold+0x1d1/0x2c5 [ 55.158795][ T3612] ? drv_bss_info_changed+0x4dd/0x5f0 [ 55.164197][ T3612] __warn.cold+0x1e2/0x2c5 [ 55.168644][ T3612] ? __wake_up_klogd.part.0+0x99/0xf0 [ 55.174048][ T3612] ? drv_bss_info_changed+0x4dd/0x5f0 [ 55.179454][ T3612] report_bug+0x1bc/0x210 [ 55.183822][ T3612] handle_bug+0x3c/0x60 [ 55.188004][ T3612] exc_invalid_op+0x14/0x40 [ 55.192537][ T3612] asm_exc_invalid_op+0x1b/0x20 [ 55.197420][ T3612] RIP: 0010:drv_bss_info_changed+0x4dd/0x5f0 [ 55.203432][ T3612] Code: 08 06 00 00 48 85 ed 0f 84 b9 00 00 00 e8 eb 58 bc f8 e8 e6 58 bc f8 8b 54 24 04 48 89 ee 48 c7 c7 00 7d f3 8a e8 94 ba 74 00 <0f> 0b e9 f6 fd ff ff e8 c7 58 bc f8 e8 52 c4 b9 00 31 ff 89 c3 89 [ 55.223156][ T3612] RSP: 0018:ffffc90002fa7500 EFLAGS: 00010282 [ 55.229258][ T3612] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.237281][ T3612] RDX: ffff888072066140 RSI: ffffffff815ffb18 RDI: fffff520005f4e92 [ 55.245289][ T3612] RBP: ffff88806c0e8000 R08: 0000000000000005 R09: 0000000000000000 [ 55.253381][ T3612] R10: 0000000080000000 R11: 0000000000000001 R12: ffff88806c0e8c80 [ 55.261383][ T3612] R13: 0000000002000000 R14: ffff88806c0ea2d0 R15: ffff88806c0ea2c8 [ 55.269397][ T3612] ? vprintk+0x88/0x90 [ 55.273501][ T3612] ieee80211_bss_info_change_notify+0x9a/0xc0 [ 55.279602][ T3612] ieee80211_set_mcast_rate+0x37/0x40 [ 55.285020][ T3612] ? ieee80211_copy_mbssid_beacon+0x270/0x270 [ 55.291121][ T3612] nl80211_set_mcast_rate+0x317/0x610 [ 55.296530][ T3612] ? nl80211_tdls_cancel_channel_switch+0x5a0/0x5a0 [ 55.303157][ T3612] ? nl80211_pre_doit+0x100/0x600 [ 55.308215][ T3612] genl_family_rcv_msg_doit+0x228/0x320 [ 55.313882][ T3612] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 55.321294][ T3612] ? cap_capable+0x1f1/0x280 [ 55.325919][ T3612] ? ns_capable+0xd9/0x100 [ 55.330367][ T3612] genl_rcv_msg+0x328/0x580 [ 55.334902][ T3612] ? genl_get_cmd+0x480/0x480 [ 55.339611][ T3612] ? nl80211_tdls_cancel_channel_switch+0x5a0/0x5a0 [ 55.346235][ T3612] ? lock_release+0x780/0x780 [ 55.350951][ T3612] netlink_rcv_skb+0x153/0x420 [ 55.355755][ T3612] ? genl_get_cmd+0x480/0x480 [ 55.360466][ T3612] ? netlink_ack+0xa80/0xa80 [ 55.365089][ T3612] ? netlink_deliver_tap+0x1b1/0xc40 [ 55.370407][ T3612] genl_rcv+0x24/0x40 [ 55.374437][ T3612] netlink_unicast+0x543/0x7f0 [ 55.379253][ T3612] ? netlink_attachskb+0x880/0x880 [ 55.384403][ T3612] netlink_sendmsg+0x917/0xe10 [ 55.389221][ T3612] ? netlink_unicast+0x7f0/0x7f0 [ 55.394194][ T3612] ? netlink_unicast+0x7f0/0x7f0 [ 55.399178][ T3612] sock_sendmsg+0xcf/0x120 [ 55.403627][ T3612] ____sys_sendmsg+0x6eb/0x810 [ 55.408424][ T3612] ? kernel_sendmsg+0x50/0x50 [ 55.413121][ T3612] ? do_recvmmsg+0x6d0/0x6d0 [ 55.417734][ T3612] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 55.423747][ T3612] ? lockdep_hardirqs_on+0x79/0x100 [ 55.429062][ T3612] ___sys_sendmsg+0xf3/0x170 [ 55.433684][ T3612] ? sendmsg_copy_msghdr+0x160/0x160 [ 55.439002][ T3612] ? lock_release+0x780/0x780 [ 55.443715][ T3612] ? ptrace_stop.part.0+0x5ec/0xa80 [ 55.448934][ T3612] ? do_raw_spin_lock+0x120/0x2a0 [ 55.453988][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 55.458953][ T3612] ? _raw_spin_lock_irq+0x41/0x50 [ 55.464013][ T3612] ? __fget_light+0x20a/0x270 [ 55.468716][ T3612] __x64_sys_sendmsg+0x132/0x220 [ 55.473774][ T3612] ? __sys_sendmsg+0x1b0/0x1b0 [ 55.478574][ T3612] ? _raw_spin_unlock_irq+0x2a/0x40 [ 55.483839][ T3612] ? ptrace_notify+0xfa/0x140 [ 55.488544][ T3612] do_syscall_64+0x35/0xb0 [ 55.492987][ T3612] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 55.498917][ T3612] RIP: 0033:0x7f4936ed01c9 [ 55.503356][ T3612] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 [ 55.522992][ T3612] RSP: 002b:00007ffe59c888d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.531445][ T3612] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4936ed01c9 [ 55.539448][ T3612] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 55.547536][ T3612] RBP: 0000000000000000 R08: 0000000c00000000 R09: 0000000c00000000 [ 55.555540][ T3612] R10: 0000000c00000000 R11: 0000000000000246 R12: 0000000000000031 [ 55.563537][ T3612] R13: 00007ffe59c88940 R14: 00007ffe59c88930 R15: 00007f4936f49410 [ 55.571545][ T3612] [ 55.574874][ T3612] Kernel Offset: disabled [ 55.579304][ T3612] Rebooting in 86400 seconds..