./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3980182422 <...> [ 3.030424][ T24] audit: type=1400 audit(1687060250.440:9): avc: denied { append open } for pid=74 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.033339][ T24] audit: type=1400 audit(1687060250.440:10): avc: denied { getattr } for pid=74 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.211692][ T91] udevd[91]: starting version 3.2.11 [ 3.238082][ T92] udevd[92]: starting eudev-3.2.11 [ 11.168129][ T24] kauditd_printk_skb: 50 callbacks suppressed [ 11.168135][ T24] audit: type=1400 audit(1687060258.600:61): avc: denied { transition } for pid=216 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 [ 11.174487][ T24] audit: type=1400 audit(1687060258.600:62): avc: denied { noatsecure } for pid=216 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.177351][ T24] audit: type=1400 audit(1687060258.600:63): avc: denied { write } for pid=216 comm="sh" path="pipe:[12956]" dev="pipefs" ino=12956 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 11.180946][ T24] audit: type=1400 audit(1687060258.600:64): avc: denied { rlimitinh } for pid=216 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.184073][ T24] audit: type=1400 audit(1687060258.600:65): avc: denied { siginh } for pid=216 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.80' (ECDSA) to the list of known hosts. execve("./syz-executor3980182422", ["./syz-executor3980182422"], 0x7fff0ee8c200 /* 10 vars */) = 0 brk(NULL) = 0x555557088000 brk(0x555557088c40) = 0x555557088c40 arch_prctl(ARCH_SET_FS, 0x555557088300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3980182422", 4096) = 28 brk(0x5555570a9c40) = 0x5555570a9c40 brk(0x5555570aa000) = 0x5555570aa000 mprotect(0x7f543d9d8000, 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 getpid() = 286 mkdir("./syzkaller.Y7rquR", 0700) = 0 chmod("./syzkaller.Y7rquR", 0777) = 0 chdir("./syzkaller.Y7rquR") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570885d0) = 287 ./strace-static-x86_64: Process 287 attached [pid 287] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 287] setsid() = 1 [pid 287] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 287] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 287] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 287] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 287] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 287] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 287] unshare(CLONE_NEWNS) = 0 [pid 287] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 287] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 287] unshare(CLONE_NEWCGROUP) = 0 [pid 287] unshare(CLONE_NEWUTS) = 0 [pid 287] unshare(CLONE_SYSVSEM) = 0 [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 287] getpid() = 1 [pid 287] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 e5 fe 8c ff eb 3b e8 de fe 8c ff eb 77 e8 d7 fe 8c ff 31 [ 21.568297][ T9] RSP: 0018:ffffc900000970a0 EFLAGS: 00010293 [ 21.574191][ T9] RAX: ffffffff81dd7ac4 RBX: dffffc0000000000 RCX: ffff8881002493c0 [ 21.582003][ T9] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.589833][ T9] RBP: ffffc90000097490 R08: ffffffff81dd56c9 R09: ffffed102203fd6e [ 21.597632][ T9] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000973b0 [ 21.605451][ T9] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 21.613247][ T9] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.622024][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.628450][ T9] CR2: 00007f543d9ac568 CR3: 000000000660f000 CR4: 00000000003506a0 [ 21.636250][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.644059][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.651865][ T9] Call Trace: [ 21.655003][ T9] ? eth_type_trans+0x2c6/0x600 [ 21.659682][ T9] ? loopback_xmit+0x321/0x430 [ 21.664289][ T9] ? ext4_readpage+0x230/0x230 [ 21.668888][ T9] ? __local_bh_enable_ip+0x53/0x80 [ 21.673914][ T9] ? __update_load_avg_cfs_rq+0xb1/0x2f0 [ 21.679385][ T9] ? update_load_avg+0x541/0x1690 [ 21.684240][ T9] ? ext4_readpage+0x230/0x230 [ 21.688847][ T9] do_writepages+0x12e/0x270 [ 21.693268][ T9] ? __writepage+0x130/0x130 [ 21.697704][ T9] ? __kasan_check_write+0x14/0x20 [ 21.702643][ T9] ? _raw_spin_lock+0xa4/0x1b0 [ 21.707248][ T9] __writeback_single_inode+0xd7/0xac0 [ 21.712536][ T9] writeback_sb_inodes+0x99c/0x16b0 [ 21.717576][ T9] ? _raw_spin_lock+0xa4/0x1b0 [ 21.722169][ T9] ? queue_io+0x520/0x520 [ 21.726337][ T9] ? writeback_sb_inodes+0x16b0/0x16b0 [ 21.731629][ T9] ? queue_io+0x3d3/0x520 [ 21.735796][ T9] wb_writeback+0x404/0xc60 [ 21.740135][ T9] ? wb_io_lists_depopulated+0x180/0x180 [ 21.745602][ T9] ? set_worker_desc+0x158/0x1c0 [ 21.750375][ T9] ? update_load_avg+0x541/0x1690 [ 21.755251][ T9] ? __kasan_check_write+0x14/0x20 [ 21.760193][ T9] wb_workfn+0x3d9/0x1110 [ 21.764352][ T9] ? inode_wait_for_writeback+0x280/0x280 [ 21.769914][ T9] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.774940][ T9] ? finish_task_switch+0x130/0x5a0 [ 21.779974][ T9] ? switch_mm_irqs_off+0x310/0x940 [ 21.785006][ T9] ? __switch_to_asm+0x34/0x60 [ 21.789605][ T9] ? __kasan_check_read+0x11/0x20 [ 21.794484][ T9] ? read_word_at_a_time+0x12/0x20 [ 21.799417][ T9] ? strscpy+0x9c/0x260 [ 21.803409][ T9] process_one_work+0x6dc/0xbd0 [ 21.808100][ T9] worker_thread+0xaea/0x1510 [ 21.812611][ T9] kthread+0x34b/0x3d0 [ 21.816530][ T9] ? worker_clr_flags+0x180/0x180 [ 21.821400][ T9] ? kthread_blkcg+0xd0/0xd0 [ 21.825805][ T9] ret_from_fork+0x1f/0x30 [ 21.830047][ T9] Modules linked in: [ 21.834598][ T9] ---[ end trace 4bcfff8552c511e6 ]--- [ 21.839874][ T9] RIP: 0010:ext4_writepages+0x3b44/0x3c00 [ 21.845461][ T9] Code: 00 74 08 48 89 df e8 eb 0e ca ff 48 8b 3b 48 8b 74 24 28 48 8b 54 24 50 44 89 e1 45 89 f8 e8 f3 e3 07 00 eb 5d e8 ec fe 8c ff <0f> 0b e8 e5 fe 8c ff eb 3b e8 de fe 8c ff eb 77 e8 d7 fe 8c ff 31 [ 21.864899][ T9] RSP: 0018:ffffc900000970a0 EFLAGS: 00010293 [ 21.870756][ T9] RAX: ffffffff81dd7ac4 RBX: dffffc0000000000 RCX: ffff8881002493c0 [ 21.878592][ T9] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.887006][ T9] RBP: ffffc90000097490 R08: ffffffff81dd56c9 R09: ffffed102203fd6e [ 21.894821][ T9] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000973b0 [ 21.902589][ T9] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 21.910605][ T9] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.919266][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.925696][ T9] CR2: 00007f543d9ac568 CR3: 000000000660f000 CR4: 00000000003506a0 [ 21.933488][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.941378][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.949163][ T9] Kernel panic - not syncing: Fatal exception [ 21.955067][ T9] Kernel Offset: disabled [ 21.959176][ T9] Rebooting in 86400 seconds..