./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4111987386 <...> Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts. execve("./syz-executor4111987386", ["./syz-executor4111987386"], 0x7ffc10ee1aa0 /* 10 vars */) = 0 brk(NULL) = 0x55555ff62000 brk(0x55555ff62d00) = 0x55555ff62d00 arch_prctl(ARCH_SET_FS, 0x55555ff62380) = 0 set_tid_address(0x55555ff62650) = 296 set_robust_list(0x55555ff62660, 24) = 0 rseq(0x55555ff62ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4111987386", 4096) = 28 getrandom("\xfb\x7b\xf5\x77\x67\x24\x71\x28", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555ff62d00 brk(0x55555ff83d00) = 0x55555ff83d00 brk(0x55555ff84000) = 0x55555ff84000 mprotect(0x7f8a3851b000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 executing program write(1, "executing program\n", 18) = 18 mkdirat(AT_FDCWD, "./file0", 016) = 0 mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0 openat(AT_FDCWD, "/dev/zero", O_RDWR|O_CLOEXEC) = 3 mmap(0x200000000000, 2097152, PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSDOWN, MAP_PRIVATE|MAP_FIXED, 3, 0x343e2000) = 0x200000000000 seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC|SECCOMP_FILTER_FLAG_LOG|SECCOMP_FILTER_FLAG_SPEC_ALLOW, 0x200000000240) = -1 EINVAL (Invalid argument) [ 21.318918][ T36] audit: type=1400 audit(1753809456.749:64): avc: denied { execmem } for pid=296 comm="syz-executor411" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.338383][ T36] audit: type=1400 audit(1753809456.759:65): avc: denied { mounton } for pid=296 comm="syz-executor411" path="/root/file0" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.361462][ T36] audit: type=1400 audit(1753809456.759:66): avc: denied { mount } for pid=296 comm="syz-executor411" name="/" dev="incremental-fs" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 21.361804][ T296] BUG: unable to handle page fault for address: fffffffffffffff1 [ 21.385180][ T36] audit: type=1400 audit(1753809456.759:67): avc: denied { map } for pid=296 comm="syz-executor411" path="/dev/zero" dev="devtmpfs" ino=5 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:zero_device_t tclass=chr_file permissive=1 [ 21.393042][ T296] #PF: supervisor read access in kernel mode [ 21.393052][ T296] #PF: error_code(0x0000) - not-present page [ 21.393062][ T296] PGD 72ac067 P4D 72ac067 [ 21.417622][ T36] audit: type=1400 audit(1753809456.759:68): avc: denied { execute } for pid=296 comm="syz-executor411" path="/dev/zero" dev="devtmpfs" ino=5 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:zero_device_t tclass=chr_file permissive=1 [ 21.422434][ T296] PUD 72ae067 PMD 0 [ 21.422465][ T296] Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 21.428665][ T36] audit: type=1400 audit(1753809456.799:69): avc: denied { read } for pid=91 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 21.432816][ T296] CPU: 0 UID: 0 PID: 296 Comm: syz-executor411 Not tainted 6.12.38-syzkaller-g616c12b4d684 #0 00545ee46979a994717fa408b9c555c5aa5888cf [ 21.456639][ T36] audit: type=1400 audit(1753809456.799:70): avc: denied { search } for pid=91 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.460208][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 21.466443][ T36] audit: type=1400 audit(1753809456.799:71): avc: denied { write } for pid=91 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.487912][ T296] RIP: 0010:read_pages+0x47e/0x670 [ 21.487961][ T296] Code: 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 e7 e8 d2 a8 1c 00 49 8b 3c 24 48 89 de 4d 89 f3 41 ba 90 db d0 8b <45> 03 53 f1 74 02 0f 0b 2e e8 60 20 41 1e 4c 89 e7 e8 2c 36 00 00 [ 21.501967][ T36] audit: type=1400 audit(1753809456.799:72): avc: denied { add_name } for pid=91 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.523050][ T296] RSP: 0018:ffffc9000122f160 EFLAGS: 00010246 [ 21.523076][ T296] RAX: dffffc0000000000 RBX: ffffea0004678600 RCX: 1ffffffff0c2c571 [ 21.523088][ T296] RDX: 0000000000000000 RSI: ffffea0004678600 RDI: ffff888102b998c0 [ 21.523099][ T296] RBP: ffffc9000122f290 R08: ffffea0004678637 R09: 1ffffd40008cf0c6 [ 21.523112][ T296] R10: 000000008bd0db90 R11: 0000000000000000 R12: ffffc9000122f5f0 [ 21.533583][ T36] audit: type=1400 audit(1753809456.799:73): avc: denied { create } for pid=91 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 21.554210][ T296] R13: 1ffff92000245ebe R14: 0000000000000000 R15: ffffffff86162b88 [ 21.554227][ T296] FS: 000055555ff62380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 21.554242][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.554254][ T296] CR2: fffffffffffffff1 CR3: 0000000103344000 CR4: 00000000003526b0 [ 21.689099][ T296] Call Trace: [ 21.692364][ T296] [ 21.695281][ T296] ? page_cache_ra_unbounded+0x960/0x960 [ 21.700933][ T296] ? folio_add_lru+0xc8/0x170 [ 21.705593][ T296] ? filemap_add_folio+0x14d/0x2d0 [ 21.710683][ T296] page_cache_ra_order+0x8cd/0xdf0 [ 21.715772][ T296] ? __cfi_page_cache_ra_order+0x10/0x10 [ 21.721386][ T296] page_cache_sync_ra+0x713/0x920 [ 21.726390][ T296] hpage_collapse_scan_file+0xbab/0x3510 [ 21.732004][ T296] ? wait_for_completion+0x40/0x40 [ 21.737102][ T296] ? hugepage_vma_revalidate+0x480/0x480 [ 21.742728][ T296] ? __virt_addr_valid+0xc5/0x380 [ 21.747724][ T296] ? kasan_addr_to_slab+0x11/0x80 [ 21.752726][ T296] ? __kasan_check_write+0x18/0x20 [ 21.757810][ T296] ? mutex_unlock+0x8b/0x240 [ 21.762379][ T296] ? __kasan_check_write+0x18/0x20 [ 21.767467][ T296] madvise_collapse+0x4c6/0xaf0 [ 21.772297][ T296] madvise_vma_behavior+0x69d/0x2d40 [ 21.777558][ T296] ? __cfi_madvise_vma_behavior+0x10/0x10 [ 21.783269][ T296] ? kvm_sched_clock_read+0x15/0x30 [ 21.788451][ T296] ? sched_clock_noinstr+0xd/0x30 [ 21.793478][ T296] ? sched_clock+0x44/0x60 [ 21.797872][ T296] ? sched_clock_cpu+0x75/0x400 [ 21.802701][ T296] ? __cfi___update_load_avg_cfs_rq+0x10/0x10 [ 21.808749][ T296] ? kvm_sched_clock_read+0x15/0x30 [ 21.813927][ T296] ? xfd_validate_state+0x68/0x150 [ 21.819017][ T296] ? save_fpregs_to_fpstate+0x196/0x230 [ 21.824536][ T296] ? __kasan_check_write+0x18/0x20 [ 21.829622][ T296] ? __switch_to+0xc7b/0x1310 [ 21.834283][ T296] ? psi_group_change+0xb44/0x1130 [ 21.839461][ T296] ? mtree_range_walk+0x573/0x730 [ 21.844464][ T296] ? mas_prev_slot+0xab4/0xb60 [ 21.849211][ T296] ? mas_prev+0x5f/0xa0 [ 21.853341][ T296] ? find_vma_prev+0xfd/0x170 [ 21.858009][ T296] ? __cfi_find_vma_prev+0x10/0x10 [ 21.863098][ T296] ? __kasan_check_write+0x18/0x20 [ 21.868183][ T296] ? rwsem_read_trylock+0x2b1/0x660 [ 21.873354][ T296] ? downgrade_write+0x440/0x440 [ 21.878308][ T296] madvise_walk_vmas+0x1b1/0x2e0 [ 21.883223][ T296] ? __cfi_madvise_vma_behavior+0x10/0x10 [ 21.888914][ T296] ? madvise_set_anon_name+0x610/0x610 [ 21.894345][ T296] ? __asan_memset+0x39/0x50 [ 21.898925][ T296] ? blk_start_plug+0x72/0x1c0 [ 21.903673][ T296] do_madvise+0x508/0x8b0 [ 21.907976][ T296] ? __cfi_do_madvise+0x10/0x10 [ 21.912799][ T296] ? __kasan_check_write+0x18/0x20 [ 21.917883][ T296] __x64_sys_madvise+0xae/0xc0 [ 21.922626][ T296] x64_sys_call+0x20c3/0x2ee0 [ 21.927278][ T296] do_syscall_64+0x58/0xf0 [ 21.931668][ T296] ? clear_bhb_loop+0x50/0xa0 [ 21.936321][ T296] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 21.942208][ T296] RIP: 0033:0x7f8a384a83e9 [ 21.946608][ T296] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 21.966223][ T296] RSP: 002b:00007ffc197ac798 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 21.974621][ T296] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f8a384a83e9 [ 21.982572][ T296] RDX: 0000000000000019 RSI: 0000000000c00000 RDI: 0000200000000000 [ 21.990520][ T296] RBP: 0030656c69662f2e R08: 00000000343e2000 R09: 00000000343e2000 [ 21.998637][ T296] R10: 00000000343e2000 R11: 0000000000000246 R12: 0000000000000001 [ 22.006581][ T296] R13: 00007ffc197ac978 R14: 0000000000000001 R15: 0000000000000001 [ 22.014538][ T296] [ 22.017532][ T296] Modules linked in: [ 22.021414][ T296] CR2: fffffffffffffff1 [ 22.025555][ T296] ---[ end trace 0000000000000000 ]--- [ 22.030990][ T296] RIP: 0010:read_pages+0x47e/0x670 [ 22.036082][ T296] Code: 48 b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 e7 e8 d2 a8 1c 00 49 8b 3c 24 48 89 de 4d 89 f3 41 ba 90 db d0 8b <45> 03 53 f1 74 02 0f 0b 2e e8 60 20 41 1e 4c 89 e7 e8 2c 36 00 00 [ 22.055667][ T296] RSP: 0018:ffffc9000122f160 EFLAGS: 00010246 [ 22.061719][ T296] RAX: dffffc0000000000 RBX: ffffea0004678600 RCX: 1ffffffff0c2c571 [ 22.069674][ T296] RDX: 0000000000000000 RSI: ffffea0004678600 RDI: ffff888102b998c0 [ 22.077634][ T296] RBP: ffffc9000122f290 R08: ffffea0004678637 R09: 1ffffd40008cf0c6 [ 22.085592][ T296] R10: 000000008bd0db90 R11: 0000000000000000 R12: ffffc9000122f5f0 [ 22.093542][ T296] R13: 1ffff92000245ebe R14: 0000000000000000 R15: ffffffff86162b88 [ 22.101497][ T296] FS: 000055555ff62380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 22.110411][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.117057][ T296] CR2: fffffffffffffff1 CR3: 0000000103344000 CR4: 00000000003526b0 [ 22.125004][ T296] Kernel panic - not syncing: Fatal exception [ 22.131298][ T296] Kernel Offset: disabled [ 22.135600][ T296] Rebooting in 86400 seconds..