./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2540450570 <...> [ 4.683173][ T146] acpid (146) used greatest stack depth: 23640 bytes left [ 4.807619][ T161] udevd[161]: starting version 3.2.11 [ 4.834782][ T162] udevd[162]: starting eudev-3.2.11 [ 8.474969][ T166] udevd (166) used greatest stack depth: 23352 bytes left [ 15.436298][ T23] kauditd_printk_skb: 50 callbacks suppressed [ 15.436304][ T23] audit: type=1400 audit(1686254574.159:61): avc: denied { transition } for pid=289 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.450508][ T23] audit: type=1400 audit(1686254574.169:62): avc: denied { noatsecure } for pid=289 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.456410][ T23] audit: type=1400 audit(1686254574.169:63): avc: denied { write } for pid=289 comm="sh" path="pipe:[10582]" dev="pipefs" ino=10582 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 15.478483][ T23] audit: type=1400 audit(1686254574.169:64): avc: denied { rlimitinh } for pid=289 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.497058][ T23] audit: type=1400 audit(1686254574.169:65): avc: denied { siginh } for pid=289 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts. execve("./syz-executor2540450570", ["./syz-executor2540450570"], 0x7fff068fd5a0 /* 10 vars */) = 0 brk(NULL) = 0x555556fb6000 brk(0x555556fb6c40) = 0x555556fb6c40 arch_prctl(ARCH_SET_FS, 0x555556fb6300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2540450570", 4096) = 28 brk(0x555556fd7c40) = 0x555556fd7c40 brk(0x555556fd8000) = 0x555556fd8000 mprotect(0x7fbd48ea2000, 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=0x555556fb65d0) = 359 ./strace-static-x86_64: Process 359 attached [pid 359] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 359] setsid() = 1 [pid 359] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 359] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 359] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 359] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 359] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 359] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 359] unshare(CLONE_NEWNS) = 0 [pid 359] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 359] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 359] unshare(CLONE_NEWCGROUP) = 0 [pid 359] unshare(CLONE_NEWUTS) = 0 [pid 359] unshare(CLONE_SYSVSEM) = 0 [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 359] getpid() = 1 [pid 359] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53 [ 25.851654][ T359] RSP: 0018:ffff8881dc31eea8 EFLAGS: 00010293 [ 25.857557][ T359] RAX: ffffffff837d1483 RBX: 0000000000000688 RCX: ffff8881dd92bf00 [ 25.865464][ T359] RDX: 0000000000000000 RSI: 0000000000000688 RDI: 00000000000006aa [ 25.873271][ T359] RBP: 00000000000006aa R08: ffffffff837d0eff R09: ffffed103b863dc6 [ 25.881074][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f53fae30 [ 25.888894][ T359] R13: 00000000000006a8 R14: ffff8881f53fadc0 R15: 1ffff1103ea7f5c6 [ 25.896697][ T359] FS: 0000555556fb6300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.905462][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.911887][ T359] CR2: 0000000020001000 CR3: 00000001dc974000 CR4: 00000000003406b0 [ 25.919697][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.927510][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.935318][ T359] Call Trace: [ 25.938456][ T359] ip_do_fragment+0x15e/0x2200 [ 25.943049][ T359] ? ip_fragment+0x210/0x210 [ 25.947470][ T359] ? ip_frag_next+0xad0/0xad0 [ 25.951986][ T359] ? kmem_cache_free+0x10b/0x2c0 [ 25.956758][ T359] ? __ip_finish_output+0x457/0x710 [ 25.961790][ T359] ? ip_fragment+0x9a/0x210 [ 25.966150][ T359] __ip_finish_output+0x49c/0x710 [ 25.970995][ T359] ip_output+0x19b/0x3a0 [ 25.975075][ T359] ? ip_finish_output+0x1d0/0x1d0 [ 25.979930][ T359] ? ip_mc_finish_output+0x340/0x340 [ 25.985053][ T359] iptunnel_xmit+0x476/0x850 [ 25.989481][ T359] ip_tunnel_xmit+0x1a4e/0x2320 [ 25.994169][ T359] ? tnl_update_pmtu+0xbb0/0xbb0 [ 25.998954][ T359] ? gre_build_header+0x23f/0x7a0 [ 26.003800][ T359] ipgre_xmit+0x7b3/0xac0 [ 26.007980][ T359] dev_hard_start_xmit+0x1b7/0x6b0 [ 26.012924][ T359] __dev_queue_xmit+0x14da/0x27e0 [ 26.017775][ T359] ? dev_queue_xmit+0x20/0x20 [ 26.022293][ T359] ? virtio_net_hdr_to_skb+0x9c1/0x10c0 [ 26.027670][ T359] ? fanout_demux_rollover+0xc10/0xc10 [ 26.032963][ T359] packet_sendmsg+0x472e/0x60e0 [ 26.037653][ T359] ? avc_has_perm_noaudit+0x3d0/0x3d0 [ 26.042863][ T359] ? selinux_socket_sendmsg+0x243/0x340 [ 26.048411][ T359] ? selinux_socket_accept+0x5b0/0x5b0 [ 26.053881][ T359] ? rw_copy_check_uvector+0x2a3/0x2f0 [ 26.059259][ T359] ? compat_packet_setsockopt+0x160/0x160 [ 26.064815][ T359] ? _copy_from_iter_full_nocache+0x8d9/0x9f0 [ 26.070900][ T359] ? security_socket_sendmsg+0x7d/0xa0 [ 26.076184][ T359] ? compat_packet_setsockopt+0x160/0x160 [ 26.081736][ T359] ____sys_sendmsg+0x5ac/0x8f0 [ 26.086340][ T359] ? __sys_sendmsg_sock+0x2b0/0x2b0 [ 26.091373][ T359] __sys_sendmsg+0x28b/0x380 [ 26.096058][ T359] ? ____sys_sendmsg+0x8f0/0x8f0 [ 26.100837][ T359] ? ptrace_notify+0x24c/0x350 [ 26.105435][ T359] ? __do_page_fault+0x725/0xbb0 [ 26.110206][ T359] do_syscall_64+0xca/0x1c0 [ 26.114549][ T359] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 26.120272][ T359] Modules linked in: [ 26.124051][ T359] ---[ end trace 2f7ab0db8a800542 ]--- [ 26.129313][ T359] RIP: 0010:skb_checksum_help+0x873/0x880 [ 26.134913][ T359] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 8e cf 16 fe e9 c3 fc ff ff e8 64 15 e7 fd 0f 0b e8 5d 15 e7 fd <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 53 [ 26.154321][ T359] RSP: 0018:ffff8881dc31eea8 EFLAGS: 00010293 [ 26.160203][ T359] RAX: ffffffff837d1483 RBX: 0000000000000688 RCX: ffff8881dd92bf00 [ 26.168035][ T359] RDX: 0000000000000000 RSI: 0000000000000688 RDI: 00000000000006aa [ 26.175831][ T359] RBP: 00000000000006aa R08: ffffffff837d0eff R09: ffffed103b863dc6 [ 26.183656][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f53fae30 [ 26.191466][ T359] R13: 00000000000006a8 R14: ffff8881f53fadc0 R15: 1ffff1103ea7f5c6 [ 26.199592][ T359] FS: 0000555556fb6300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.208346][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.214926][ T359] CR2: 0000000020001000 CR3: 00000001dc974000 CR4: 00000000003406b0 [ 26.222732][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.230558][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.238360][ T359] Kernel panic - not syncing: Fatal exception in interrupt [ 26.245525][ T359] Kernel Offset: disabled [ 26.249640][ T359] Rebooting in 86400 seconds..