./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3480717266 <...> Warning: Permanently added '10.128.1.63' (ED25519) to the list of known hosts. execve("./syz-executor3480717266", ["./syz-executor3480717266"], 0x7ffe151e4f90 /* 10 vars */) = 0 brk(NULL) = 0x555575dee000 brk(0x555575deed00) = 0x555575deed00 arch_prctl(ARCH_SET_FS, 0x555575dee380) = 0 set_tid_address(0x555575dee650) = 299 set_robust_list(0x555575dee660, 24) = 0 rseq(0x555575deeca0, 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-executor3480717266", 4096) = 28 getrandom("\xf8\x17\x7b\xcf\xd9\xf1\x09\x6d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555575deed00 brk(0x555575e0fd00) = 0x555575e0fd00 brk(0x555575e10000) = 0x555575e10000 mprotect(0x7f63f03f3000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program ) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f63e7f41000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288 munmap(0x7f63e7f41000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 24.982675][ T28] audit: type=1400 audit(1739060624.571:66): avc: denied { execmem } for pid=299 comm="syz-executor348" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.988896][ T299] loop0: detected capacity change from 0 to 1024 [ 25.002642][ T28] audit: type=1400 audit(1739060624.571:67): avc: denied { read write } for pid=299 comm="syz-executor348" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 25.016420][ T299] EXT4-fs: Ignoring removed orlov option [ 25.038374][ T299] EXT4-fs: Ignoring removed nomblk_io_submit option [ 25.045332][ T28] audit: type=1400 audit(1739060624.571:68): avc: denied { open } for pid=299 comm="syz-executor348" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.069403][ T28] audit: type=1400 audit(1739060624.571:69): avc: denied { ioctl } for pid=299 comm="syz-executor348" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.079990][ T299] [EXT4 FS bs=1024, gc=1, bpg=131072, ipg=32, mo=8803c118, mo2=0002] [ 25.095141][ T28] audit: type=1400 audit(1739060624.601:70): avc: denied { mounton } for pid=299 comm="syz-executor348" path="/root/file1" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 mount("/dev/loop0", "./file1", "ext4", MS_RELATIME, "noblock_validity,bsddf,sysvgroups,norecovery,debug_want_extra_isize=0x0000000000000080,orlov,debug,n"...) = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 open("./bus", O_WRONLY|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_NOATIME|0x3c, 000) = 4 creat("./file1", 000) = 5 write(5, "\x78\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 120) = 120 unlink("./file1") = 0 mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0 open("./bus", O_RDONLY) = 6 io_uring_setup(5414, {flags=0, sq_thread_cpu=0x3, sq_thread_idle=0, sq_entries=8192, cq_entries=16384, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|0x1000, sq_off={head=0, tail=64, ring_mask=256, ring_entries=264, flags=276, dropped=272, array=262464}, cq_off={head=128, tail=192, ring_mask=260, ring_entries=268, overflow=284, cqes=320, flags=280}}) = 7 mmap(NULL, 295232, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 7, 0) = 0x7f63f02f8000 mmap(NULL, 524288, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 7, 0x10000000) = 0x7f63f0278000 [ 25.104277][ T299] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 25.134028][ T28] audit: type=1400 audit(1739060624.721:71): avc: denied { mount } for pid=299 comm="syz-executor348" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 25.155912][ T28] audit: type=1400 audit(1739060624.721:72): avc: denied { write } for pid=299 comm="syz-executor348" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 ioctl(6, LOOP_SET_STATUS, {lo_number=0, lo_offset=0x11c, lo_encrypt_type=0x140 /* LO_CRYPT_??? */, lo_encrypt_key_size=280, lo_flags=0, lo_name="", lo_encrypt_key="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", ...}) = 0 exit_group(0) = ? [ 25.177652][ T28] audit: type=1400 audit(1739060624.721:73): avc: denied { add_name } for pid=299 comm="syz-executor348" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.198285][ T28] audit: type=1400 audit(1739060624.721:74): avc: denied { create } for pid=299 comm="syz-executor348" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 25.198769][ T299] loop0: detected capacity change from 1024 to 1023 [ 25.218720][ T28] audit: type=1400 audit(1739060624.721:75): avc: denied { write open } for pid=299 comm="syz-executor348" path="/root/file1/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 25.234854][ T299] ------------[ cut here ]------------ [ 25.253514][ T299] kernel BUG at fs/ext4/inline.c:2005! [ 25.258859][ T299] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 25.264686][ T299] CPU: 0 PID: 299 Comm: syz-executor348 Not tainted 6.1.124-syzkaller-00004-g1ac09f5c0571 #0 [ 25.274776][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 25.284763][ T299] RIP: 0010:ext4_inline_data_truncate+0xd54/0xd60 [ 25.291004][ T299] Code: 80 e1 07 80 c1 03 38 c1 0f 8c 6e fd ff ff e8 f3 bf c9 ff 48 8d 94 24 e0 00 00 00 e9 5c fd ff ff e8 31 a1 28 03 e8 bc 39 82 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 [ 25.310538][ T299] RSP: 0018:ffffc90000de7540 EFLAGS: 00010293 [ 25.316436][ T299] RAX: ffffffff81f35b04 RBX: 00000000ffffffc3 RCX: ffff88810f27e540 [ 25.324249][ T299] RDX: 0000000000000000 RSI: 00000000ffffffc3 RDI: 0000000000000000 [ 25.332062][ T299] RBP: ffffc90000de76b0 R08: ffffffff81f357ca R09: ffffed10200b2f0e [ 25.339880][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001bcebc [ 25.347680][ T299] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888100597980 [ 25.355494][ T299] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.364343][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.370765][ T299] CR2: 00007f63f03c7048 CR3: 000000000700f000 CR4: 00000000003506b0 [ 25.378588][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.386477][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.394296][ T299] Call Trace: [ 25.397415][ T299] [ 25.400193][ T299] ? __die_body+0x62/0xb0 [ 25.404357][ T299] ? die+0x88/0xb0 [ 25.407923][ T299] ? do_trap+0x103/0x330 [ 25.411995][ T299] ? ext4_inline_data_truncate+0xd54/0xd60 [ 25.417653][ T299] ? handle_invalid_op+0x95/0xc0 [ 25.422413][ T299] ? ext4_inline_data_truncate+0xd54/0xd60 [ 25.428056][ T299] ? exc_invalid_op+0x32/0x50 [ 25.432585][ T299] ? asm_exc_invalid_op+0x1b/0x20 [ 25.437425][ T299] ? ext4_inline_data_truncate+0xa1a/0xd60 [ 25.443070][ T299] ? ext4_inline_data_truncate+0xd54/0xd60 [ 25.448711][ T299] ? ext4_inline_data_truncate+0xd54/0xd60 [ 25.454356][ T299] ? ext4_inline_data_iomap+0x4e0/0x4e0 [ 25.459840][ T299] ? __ext4_mark_inode_dirty+0x52c/0x7d0 [ 25.465288][ T299] ext4_truncate+0x337/0xfb0 [ 25.469892][ T299] ? __ext4_mark_inode_dirty+0x7d0/0x7d0 [ 25.475357][ T299] ? __kasan_check_read+0x11/0x20 [ 25.480239][ T299] ? ext4_inode_is_fast_symlink+0x295/0x3d0 [ 25.485956][ T299] ext4_evict_inode+0xd41/0x1550 [ 25.490717][ T299] ? _raw_spin_unlock+0x4c/0x70 [ 25.495411][ T299] ? ext4_inode_is_fast_symlink+0x3d0/0x3d0 [ 25.501131][ T299] ? _raw_spin_unlock+0x4c/0x70 [ 25.505907][ T299] ? inode_io_list_del+0x18b/0x1a0 [ 25.510854][ T299] ? ext4_inode_is_fast_symlink+0x3d0/0x3d0 [ 25.516585][ T299] evict+0x529/0x930 [ 25.520314][ T299] ? proc_nr_inodes+0x320/0x320 [ 25.525098][ T299] ? _raw_spin_lock+0xa4/0x1b0 [ 25.529687][ T299] ? _raw_spin_trylock_bh+0x190/0x190 [ 25.534895][ T299] ? __kasan_check_write+0x14/0x20 [ 25.539847][ T299] ? ext4_drop_inode+0x90/0x1a0 [ 25.544531][ T299] iput+0x616/0x690 [ 25.548178][ T299] dentry_unlink_inode+0x34e/0x430 [ 25.553554][ T299] __dentry_kill+0x447/0x650 [ 25.557982][ T299] dentry_kill+0xc0/0x2a0 [ 25.562151][ T299] dput+0x40/0x80 [ 25.565623][ T299] __fput+0x56c/0x870 [ 25.569440][ T299] ____fput+0x15/0x20 [ 25.573254][ T299] task_work_run+0x24d/0x2e0 [ 25.577778][ T299] ? task_work_cancel+0x2e0/0x2e0 [ 25.582629][ T299] ? exit_fs+0x121/0x150 [ 25.586713][ T299] ? __kasan_check_write+0x14/0x20 [ 25.591658][ T299] ? exit_task_namespaces+0xc2/0xd0 [ 25.596702][ T299] do_exit+0xbd0/0x2b80 [ 25.600684][ T299] ? put_task_struct+0x80/0x80 [ 25.605286][ T299] ? __kasan_check_write+0x14/0x20 [ 25.610229][ T299] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.615176][ T299] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.620561][ T299] ? do_notify_parent+0xa20/0xa20 [ 25.625445][ T299] ? zap_other_threads+0x29c/0x2d0 [ 25.630371][ T299] do_group_exit+0x21a/0x2d0 [ 25.637571][ T299] __x64_sys_exit_group+0x3f/0x40 [ 25.642613][ T299] x64_sys_call+0x610/0x9a0 [ 25.647035][ T299] do_syscall_64+0x3b/0xb0 [ 25.651283][ T299] ? clear_bhb_loop+0x55/0xb0 [ 25.655799][ T299] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.661538][ T299] RIP: 0033:0x7f63f037d479 [ 25.665790][ T299] Code: Unable to access opcode bytes at 0x7f63f037d44f. [ 25.672638][ T299] RSP: 002b:00007fffad650e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.680882][ T299] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f63f037d479 [ 25.688719][ T299] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 25.696505][ T299] RBP: 00007f63f03f9370 R08: ffffffffffffffb8 R09: 00007f63f03f8260 [ 25.704316][ T299] R10: 0000000000000007 R11: 0000000000000246 R12: 00007f63f03f9370 [ 25.712128][ T299] R13: 0000000000000000 R14: 00007f63f03fa0e0 R15: 00007f63f034bd70 [ 25.719940][ T299] [ 25.722799][ T299] Modules linked in: [ 25.726871][ T299] ---[ end trace 0000000000000000 ]--- [ 25.732223][ T299] RIP: 0010:ext4_inline_data_truncate+0xd54/0xd60 [ 25.738459][ T299] Code: 80 e1 07 80 c1 03 38 c1 0f 8c 6e fd ff ff e8 f3 bf c9 ff 48 8d 94 24 e0 00 00 00 e9 5c fd ff ff e8 31 a1 28 03 e8 bc 39 82 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 [ 25.758005][ T299] RSP: 0018:ffffc90000de7540 EFLAGS: 00010293 [ 25.763880][ T299] RAX: ffffffff81f35b04 RBX: 00000000ffffffc3 RCX: ffff88810f27e540 [ 25.771891][ T299] RDX: 0000000000000000 RSI: 00000000ffffffc3 RDI: 0000000000000000 [ 25.779625][ T299] RBP: ffffc90000de76b0 R08: ffffffff81f357ca R09: ffffed10200b2f0e [ 25.787524][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001bcebc [ 25.795378][ T299] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888100597980 [ 25.803273][ T299] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.812054][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.818600][ T299] CR2: 00007f63f03c7048 CR3: 000000010ee42000 CR4: 00000000003506b0 [ 25.826380][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.834327][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.842134][ T299] Kernel panic - not syncing: Fatal exception [ 25.848515][ T299] Kernel Offset: disabled [ 25.852658][ T299] Rebooting in 86400 seconds..