./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3602835635 <...> Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. execve("./syz-executor3602835635", ["./syz-executor3602835635"], 0x7ffcfbf4cd30 /* 10 vars */) = 0 brk(NULL) = 0x555555d6c000 brk(0x555555d6cc40) = 0x555555d6cc40 arch_prctl(ARCH_SET_FS, 0x555555d6c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3602835635", 4096) = 28 brk(0x555555d8dc40) = 0x555555d8dc40 brk(0x555555d8e000) = 0x555555d8e000 mprotect(0x7fd13676b000, 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 open("./file0", O_RDWR|O_CREAT|0x3c, 000) = 3 [ 83.215606][ T26] audit: type=1400 audit(1687326581.044:83): avc: denied { write } for pid=4991 comm="strace-static-x" path="pipe:[30138]" dev="pipefs" ino=30138 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 memfd_create("syzkaller", 0) = 4 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd12e2a8000 write(4, "\xb5\x84\x31\x7b\xb6\x84\x31\x7b\xb7\x84\x31\x7b\xb8\x84\x31\x7b\xb9\x84\x31\x7b\xba\x84\x31\x7b\xbb\x84\x31\x7b\xbc\x84\x31\x7b\xbd\x84\x31\x7b\xbe\x84\x31\x7b\xbf\x84\x31\x7b\xc0\x84\x31\x7b\xc1\x84\x31\x7b\xc2\x84\x31\x7b\xc3\x84\x31\x7b\xc4\x84\x31\x7b\xc5\x84\x31\x7b\xc6\x84\x31\x7b\xc7\x84\x31\x7b\xc8\x84\x31\x7b\xc9\x84\x31\x7b\xca\x84\x31\x7b\xcb\x84\x31\x7b\xcc\x84\x31\x7b\xcd\x84\x31\x7b"..., 65536) = 65536 munmap(0x7fd12e2a8000, 65536) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [ 83.245910][ T26] audit: type=1400 audit(1687326581.074:84): avc: denied { append } for pid=4428 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 83.262950][ T4994] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4994 'syz-executor360' [ 83.268250][ T26] audit: type=1400 audit(1687326581.074:85): avc: denied { open } for pid=4428 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 ioctl(5, LOOP_SET_FD, 4) = 0 close(4) = 0 mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 83.300571][ T26] audit: type=1400 audit(1687326581.074:86): avc: denied { getattr } for pid=4428 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 83.314550][ T4994] loop0: detected capacity change from 0 to 128 [ 83.323989][ T26] audit: type=1400 audit(1687326581.084:87): avc: denied { execmem } for pid=4994 comm="syz-executor360" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 mount("/dev/loop0", "./file0", "sysv", 0, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = -1 ENOTDIR (Not a directory) ioctl(5, LOOP_CLR_FD) = 0 close(5) = 0 [ 83.349820][ T26] audit: type=1400 audit(1687326581.134:88): avc: denied { read write } for pid=4994 comm="syz-executor360" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 83.374648][ T26] audit: type=1400 audit(1687326581.134:89): avc: denied { open } for pid=4994 comm="syz-executor360" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 83.375099][ T4994] VFS: Found a Xenix FS (block size = 512) on device loop0 [ 83.399539][ T26] audit: type=1400 audit(1687326581.134:90): avc: denied { ioctl } for pid=4994 comm="syz-executor360" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 83.416914][ T4994] syz-executor360: attempt to access beyond end of device [ 83.416914][ T4994] loop0: rw=0, sector=3245512, nr_sectors = 1 limit=128 [ 83.446536][ T4994] Buffer I/O error on dev loop0, logical block 3245512, async page read [ 83.455734][ T4994] syz-executor360: attempt to access beyond end of device [ 83.455734][ T4994] loop0: rw=0, sector=8767867, nr_sectors = 1 limit=128 [ 83.457018][ T26] audit: type=1400 audit(1687326581.184:91): avc: denied { mounton } for pid=4994 comm="syz-executor360" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=file permissive=1 [ 83.482589][ T4994] Buffer I/O error on dev loop0, logical block 8767867, async page read [ 83.494431][ T26] audit: type=1400 audit(1687326581.234:92): avc: denied { mount } for pid=4994 comm="syz-executor360" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysv_t tclass=filesystem permissive=1 [ 83.503040][ T4994] syz-executor360: attempt to access beyond end of device [ 83.503040][ T4994] loop0: rw=0, sector=13269809, nr_sectors = 1 limit=128 [ 83.537773][ T4994] Buffer I/O error on dev loop0, logical block 13269809, async page read [ 83.546526][ T4994] syz-executor360: attempt to access beyond end of device [ 83.546526][ T4994] loop0: rw=0, sector=8073605, nr_sectors = 1 limit=128 [ 83.561057][ T4994] Buffer I/O error on dev loop0, logical block 8073605, async page read [ 83.569795][ T4994] syz-executor360: attempt to access beyond end of device [ 83.569795][ T4994] loop0: rw=0, sector=3245515, nr_sectors = 1 limit=128 [ 83.584068][ T4994] Buffer I/O error on dev loop0, logical block 3245515, async page read [ 83.592537][ T4994] syz-executor360: attempt to access beyond end of device [ 83.592537][ T4994] loop0: rw=0, sector=8768635, nr_sectors = 1 limit=128 [ 83.606542][ T4994] Buffer I/O error on dev loop0, logical block 8768635, async page read [ 83.614972][ T4994] syz-executor360: attempt to access beyond end of device [ 83.614972][ T4994] loop0: rw=0, sector=13466417, nr_sectors = 1 limit=128 [ 83.629083][ T4994] Buffer I/O error on dev loop0, logical block 13466417, async page read [ 83.637601][ T4994] syz-executor360: attempt to access beyond end of device [ 83.637601][ T4994] loop0: rw=0, sector=8073605, nr_sectors = 1 limit=128 [ 83.651616][ T4994] Buffer I/O error on dev loop0, logical block 8073605, async page read [ 83.660191][ T4994] BUG: sleeping function called from invalid context at fs/buffer.c:1380 [ 83.668991][ T4994] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4994, name: syz-executor360 [ 83.678548][ T4994] preempt_count: 1, expected: 0 [ 83.683443][ T4994] RCU nest depth: 0, expected: 0 [ 83.688497][ T4994] 3 locks held by syz-executor360/4994: [ 83.694084][ T4994] #0: ffff88802b87d2c0 (&iint->mutex){+.+.}-{3:3}, at: process_measurement+0x67b/0x1930 [ 83.704103][ T4994] #1: ffff888071b37db8 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x5e0 [ 83.715594][ T4994] #2: ffffffff8cb8a698 (pointers_lock){.+.+}-{2:2}, at: get_block+0x16b/0x1580 [ 83.724762][ T4994] Preemption disabled at: [ 83.724777][ T4994] [<0000000000000000>] 0x0 [ 83.733583][ T4994] CPU: 0 PID: 4994 Comm: syz-executor360 Not tainted 6.4.0-rc7-syzkaller-00019-g99ec1ed7c2ed #0 [ 83.744009][ T4994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 83.754074][ T4994] Call Trace: [ 83.757359][ T4994] [ 83.760296][ T4994] dump_stack_lvl+0x136/0x150 [ 83.765003][ T4994] __might_resched+0x358/0x580 [ 83.769798][ T4994] __bread_gfp+0x40/0x330 [ 83.774144][ T4994] get_branch+0x2cd/0x640 [ 83.778486][ T4994] get_block+0x188/0x1580 [ 83.782833][ T4994] ? free_branches+0x3d0/0x3d0 [ 83.787609][ T4994] ? folio_create_buffers+0x10b/0x160 [ 83.793001][ T4994] ? lock_downgrade+0x690/0x690 [ 83.797882][ T4994] ? folio_flags.constprop.0+0x53/0x150 [ 83.803468][ T4994] ? do_raw_spin_unlock+0x175/0x230 [ 83.808705][ T4994] ? _raw_spin_unlock+0x28/0x40 [ 83.813595][ T4994] block_read_full_folio+0x41d/0xab0 [ 83.818914][ T4994] ? free_branches+0x3d0/0x3d0 [ 83.823705][ T4994] ? decrypt_bh+0x390/0x390 [ 83.828244][ T4994] ? folio_add_lru+0x449/0x7c0 [ 83.833035][ T4994] ? sysv_bmap+0x30/0x30 [ 83.837304][ T4994] read_pages+0x9fb/0xd40 [ 83.841678][ T4994] ? folio_add_lru+0x47f/0x7c0 [ 83.846471][ T4994] ? folio_flags.constprop.0+0x150/0x150 [ 83.852152][ T4994] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 83.858173][ T4994] ? find_held_lock+0x2d/0x110 [ 83.862967][ T4994] page_cache_ra_unbounded+0x477/0x5e0 [ 83.868472][ T4994] page_cache_ra_order+0x6ec/0xa00 [ 83.873720][ T4994] ? blk_cgroup_congested+0x147/0x2a0 [ 83.879142][ T4994] ondemand_readahead+0x6b3/0x1080 [ 83.884304][ T4994] page_cache_sync_ra+0x1c9/0x200 [ 83.889359][ T4994] filemap_get_pages+0x28d/0x1620 [ 83.894424][ T4994] ? filemap_add_folio+0x1e0/0x1e0 [ 83.899566][ T4994] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 83.905586][ T4994] filemap_read+0x35e/0xc70 [ 83.910121][ T4994] ? filemap_get_pages+0x1620/0x1620 [ 83.915434][ T4994] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 83.921286][ T4994] ? lockdep_hardirqs_on+0x7d/0x100 [ 83.926520][ T4994] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 83.932549][ T4994] ? __stack_depot_save+0x23b/0x510 [ 83.937791][ T4994] generic_file_read_iter+0x3ad/0x5b0 [ 83.943200][ T4994] ? process_measurement+0xd2f/0x1930 [ 83.948616][ T4994] ? ima_file_check+0xba/0x100 [ 83.953422][ T4994] ? path_openat+0x15d3/0x2750 [ 83.958224][ T4994] ? iov_iter_kvec+0x49/0x1c0 [ 83.962929][ T4994] __kernel_read+0x2ca/0x830 [ 83.967560][ T4994] ? __ia32_sys_llseek+0x380/0x380 [ 83.972704][ T4994] ? __kmem_cache_alloc_node+0x43/0x3f0 [ 83.978277][ T4994] ? mark_held_locks+0x9f/0xe0 [ 83.983078][ T4994] integrity_kernel_read+0x7f/0xb0 [ 83.988238][ T4994] ? integrity_inode_free+0x310/0x310 [ 83.993649][ T4994] ? kasan_set_track+0x25/0x30 [ 83.998440][ T4994] ima_calc_file_hash_tfm+0x2b3/0x3c0 [ 84.003945][ T4994] ? calc_buffer_shash_tfm+0x2b0/0x2b0 [ 84.009448][ T4994] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 84.015466][ T4994] ? _find_first_zero_bit+0x94/0xb0 [ 84.020706][ T4994] ? lockdep_unlock+0x11b/0x290 [ 84.025588][ T4994] ? lock_sync+0x190/0x190 [ 84.030037][ T4994] ? ima_alloc_tfm+0x214/0x2d0 [ 84.034840][ T4994] ima_calc_file_hash+0x195/0x4a0 [ 84.039911][ T4994] ima_collect_measurement+0x55b/0x670 [ 84.045422][ T4994] ? ima_get_action+0xa0/0xa0 [ 84.050145][ T4994] ? ima_get_cache_status+0x1e0/0x1e0 [ 84.055547][ T4994] process_measurement+0xd2f/0x1930 [ 84.060787][ T4994] ? mmap_violation_check+0x1f0/0x1f0 [ 84.066205][ T4994] ? avc_has_perm+0xfe/0x1a0 [ 84.070825][ T4994] ? avc_has_perm_noaudit+0x3a0/0x3a0 [ 84.076233][ T4994] ? inode_has_perm+0x19b/0x210 [ 84.081117][ T4994] ? selinux_file_open+0x315/0x3f0 [ 84.086257][ T4994] ? selinux_inode_create+0x30/0x30 [ 84.091483][ T4994] ? lock_downgrade+0x690/0x690 [ 84.096394][ T4994] ? spin_bug+0x1c0/0x1c0 [ 84.100761][ T4994] ? fsnotify_perm.part.0+0x221/0x610 [ 84.106170][ T4994] ima_file_check+0xba/0x100 [ 84.110805][ T4994] ? process_measurement+0x1930/0x1930 [ 84.116394][ T4994] ? may_open+0x1f6/0x420 [ 84.120775][ T4994] path_openat+0x15d3/0x2750 [ 84.125411][ T4994] ? path_lookupat+0x840/0x840 [ 84.130216][ T4994] do_filp_open+0x1ba/0x410 [ 84.134771][ T4994] ? may_open_dev+0xf0/0xf0 [ 84.139330][ T4994] ? find_held_lock+0x2d/0x110 [ 84.144152][ T4994] ? do_raw_spin_lock+0x124/0x2b0 [ 84.149226][ T4994] ? spin_bug+0x1c0/0x1c0 [ 84.153591][ T4994] ? _raw_spin_unlock+0x28/0x40 [ 84.158489][ T4994] ? alloc_fd+0x2e4/0x750 [ 84.162850][ T4994] do_sys_openat2+0x16d/0x4c0 [ 84.167641][ T4994] ? ptrace_stop.part.0+0x60f/0x8e0 [ 84.172873][ T4994] ? build_open_flags+0x720/0x720 [ 84.178010][ T4994] ? ptrace_notify+0xfe/0x140 [ 84.182715][ T4994] ? lock_downgrade+0x690/0x690 [ 84.187601][ T4994] __x64_sys_open+0x11d/0x1c0 [ 84.192303][ T4994] ? do_sys_open+0x150/0x150 [ 84.196918][ T4994] ? _raw_spin_unlock_irq+0x2e/0x50 [ 84.202156][ T4994] ? ptrace_notify+0xfe/0x140 [ 84.206867][ T4994] do_syscall_64+0x39/0xb0 [ 84.211399][ T4994] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 84.217345][ T4994] RIP: 0033:0x7fd1366f4789 [ 84.221789][ T4994] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 [ 84.241428][ T4994] RSP: 002b:00007ffc4a0b0a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 84.249874][ T4994] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fd1366f4789 [ 84.257877][ T4994] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 [ 84.265874][ T4994] RBP: 00007fd1366b4020 R08: 0000000000009e07 R09: 0000000000000000 [ 84.273871][ T4994] R10: 00007ffc4a0b0910 R11: 0000000000000246 R12: 00007fd1366b40b0 [ 84.281969][ T4994] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 84.289970][ T4994] [ 84.295541][ T4994] syz-executor360: attempt to access beyond end of device [ 84.295541][ T4994] loop0: rw=0, sector=3245518, nr_sectors = 1 limit=128 [ 84.309711][ T4994] Buffer I/O error on dev loop0, logical block 3245518, async page read open("./file0", O_RDONLY) = 4 exit_group(0) = ? +++ exited with 0 +++ [ 84.