./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1712059322 <...> Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. execve("./syz-executor1712059322", ["./syz-executor1712059322"], 0x7ffc2f47d000 /* 10 vars */) = 0 brk(NULL) = 0x5555566ba000 brk(0x5555566bad40) = 0x5555566bad40 arch_prctl(ARCH_SET_FS, 0x5555566ba3c0) = 0 set_tid_address(0x5555566ba690) = 5019 set_robust_list(0x5555566ba6a0, 24) = 0 rseq(0x5555566bace0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1712059322", 4096) = 28 getrandom("\x5e\xbf\xe5\x75\xb9\xdb\xe5\x01", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555566bad40 brk(0x5555566dbd40) = 0x5555566dbd40 brk(0x5555566dc000) = 0x5555566dc000 mprotect(0x7fb7f8db8000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555566ba690) = 5020 [ 65.692603][ T26] audit: type=1400 audit(1692023542.506:83): avc: denied { write } for pid=5016 comm="strace-static-x" path="pipe:[30100]" dev="pipefs" ino=30100 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 65.722329][ T26] audit: type=1400 audit(1692023542.536:84): avc: denied { execmem } for pid=5019 comm="syz-executor171" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 ./strace-static-x86_64: Process 5020 attached [pid 5020] set_robust_list(0x5555566ba6a0, 24) = 0 [pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5020] setpgid(0, 0) = 0 [ 65.743271][ T26] audit: type=1400 audit(1692023542.536:85): avc: denied { read write } for pid=5019 comm="syz-executor171" 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 [pid 5020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5020] write(3, "1000", 4) = 4 [pid 5020] close(3) = 0 [pid 5020] futex(0x7fb7f8dbe60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] rt_sigaction(SIGRT_1, {sa_handler=0x7fb7f8d58670, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb7f8d49d20}, NULL, 8) = 0 [pid 5020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb7f8ccf000 [pid 5020] mprotect(0x7fb7f8cd0000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb7f8cef990, parent_tid=0x7fb7f8cef990, exit_signal=0, stack=0x7fb7f8ccf000, stack_size=0x20300, tls=0x7fb7f8cef6c0} => {parent_tid=[5022]}, 88) = 5022 [pid 5020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5020] futex(0x7fb7f8dbe608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7fb7f8dbe60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 5022 attached [pid 5022] rseq(0x7fb7f8ceffe0, 0x20, 0, 0x53053053) = 0 [pid 5022] set_robust_list(0x7fb7f8cef9a0, 24) = 0 [pid 5022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5022] memfd_create("syzkaller", 0) = 3 [pid 5022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb7f08cf000 [ 65.772977][ T26] audit: type=1400 audit(1692023542.536:86): avc: denied { open } for pid=5019 comm="syz-executor171" 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 [ 65.784191][ T5022] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5022 'syz-executor171' [ 65.809028][ T26] audit: type=1400 audit(1692023542.536:87): avc: denied { ioctl } for pid=5019 comm="syz-executor171" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5022] 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"..., 16777216) = 16777216 [pid 5022] munmap(0x7fb7f08cf000, 16777216) = 0 [pid 5022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5022] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5022] close(3) = 0 [pid 5022] mkdir("./file0", 0777) = 0 [ 65.992549][ T5022] loop0: detected capacity change from 0 to 32768 [ 66.008137][ T26] audit: type=1400 audit(1692023542.816:88): avc: denied { mounton } for pid=5020 comm="syz-executor171" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 66.032894][ T5022] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor171 (5022) [ 66.054514][ T5022] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm [ 66.063729][ T5022] BTRFS info (device loop0): using free space tree [ 66.085371][ T5022] BTRFS info (device loop0): enabling ssd optimizations [pid 5022] mount("/dev/loop0", "./file0", "btrfs", 0, "") = 0 [pid 5022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5022] chdir("./file0") = 0 [pid 5022] ioctl(4, LOOP_CLR_FD) = 0 [pid 5022] close(4) = 0 [pid 5022] futex(0x7fb7f8dbe60c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5020] <... futex resumed>) = 0 [pid 5020] futex(0x7fb7f8dbe608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7fb7f8dbe60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5022] <... futex resumed>) = 1 [ 66.092503][ T5022] BTRFS info (device loop0): auto enabling async discard [ 66.104651][ T26] audit: type=1400 audit(1692023542.916:89): avc: denied { mount } for pid=5020 comm="syz-executor171" name="/" dev="loop0" ino=256 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [pid 5022] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000 [pid 5020] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5020] futex(0x7fb7f8dbe61c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb7f18ae000 [pid 5020] mprotect(0x7fb7f18af000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb7f18ce990, parent_tid=0x7fb7f18ce990, exit_signal=0, stack=0x7fb7f18ae000, stack_size=0x20300, tls=0x7fb7f18ce6c0} => {parent_tid=[5038]}, 88) = 5038 [pid 5020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5020] futex(0x7fb7f8dbe618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7fb7f8dbe61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5038 attached [pid 5038] rseq(0x7fb7f18cefe0, 0x20, 0, 0x53053053) = 0 [pid 5038] set_robust_list(0x7fb7f18ce9a0, 24) = 0 [pid 5038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5038] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 5022] <... open resumed>) = 4 [pid 5022] futex(0x7fb7f8dbe60c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5022] futex(0x7fb7f8dbe608, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5038] <... open resumed>) = 5 [pid 5038] futex(0x7fb7f8dbe61c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5020] <... futex resumed>) = 0 [pid 5020] futex(0x7fb7f8dbe608, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5020] futex(0x7fb7f8dbe60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5022] <... futex resumed>) = 0 [pid 5022] fallocate(5, 0, 0, 1048816 [pid 5038] <... futex resumed>) = 1 [pid 5038] futex(0x7fb7f8dbe618, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5022] <... fallocate resumed>) = 0 [pid 5022] futex(0x7fb7f8dbe60c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5020] <... futex resumed>) = 0 [pid 5020] futex(0x7fb7f8dbe608, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7fb7f8dbe60c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 66.127451][ T26] audit: type=1400 audit(1692023542.916:90): avc: denied { write } for pid=5020 comm="syz-executor171" name="/" dev="loop0" ino=256 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 66.150113][ T26] audit: type=1400 audit(1692023542.916:91): avc: denied { add_name } for pid=5020 comm="syz-executor171" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 66.171085][ T26] audit: type=1400 audit(1692023542.916:92): avc: denied { create } for pid=5020 comm="syz-executor171" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [pid 5022] sendfile(4, 5, NULL, 142606348 [pid 5020] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5020] futex(0x7fb7f8dbe618, FUTEX_WAKE_PRIVATE, 1000000 [pid 5038] <... futex resumed>) = 0 [pid 5020] <... futex resumed>) = 1 [pid 5038] open(".", O_RDONLY [pid 5020] futex(0x7fb7f8dbe61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5038] <... open resumed>) = 6 [pid 5038] futex(0x7fb7f8dbe61c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5020] <... futex resumed>) = 0 [pid 5038] ioctl(6, BTRFS_IOC_BALANCE_V2, {flags=0} [pid 5020] futex(0x7fb7f8dbe618, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5020] futex(0x7fb7f8dbe61c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [ 66.293533][ T5038] BTRFS info (device loop0): balance: start [ 66.302530][ T5022] ------------[ cut here ]------------ [ 66.308297][ T5022] BTRFS: Transaction aborted (error -28) [ 66.314834][ T5038] BTRFS info (device loop0: state A): balance: ended with status: 0 [ 66.323692][ T5022] WARNING: CPU: 1 PID: 5022 at fs/btrfs/extent-tree.c:3055 __btrfs_free_extent+0x19ea/0x2c30 [ 66.334189][ T5022] Modules linked in: [ 66.338124][ T5022] CPU: 1 PID: 5022 Comm: syz-executor171 Not tainted 6.5.0-rc6-syzkaller #0 [ 66.348647][ T5022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 66.358831][ T5022] RIP: 0010:__btrfs_free_extent+0x19ea/0x2c30 [ 66.364955][ T5022] Code: 00 e8 0a 1d 1a fe 0f 1f 44 00 00 bb 01 00 00 00 e9 f5 f7 ff ff e8 f6 1c 1a fe 8b 74 24 58 48 c7 c7 80 f2 b4 8a e8 46 de e0 fd <0f> 0b e9 eb f0 ff ff e8 da 1c 1a fe 48 8b 54 24 30 48 b8 00 00 00 [ 66.384760][ T5022] RSP: 0018:ffffc900033eef90 EFLAGS: 00010282 [ 66.390914][ T5022] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 66.398961][ T5022] RDX: ffff88801878a000 RSI: ffffffff814be3c6 RDI: 0000000000000001 [ 66.406960][ T5022] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 66.415037][ T5022] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802cf3bf20 [ 66.423093][ T5022] R13: ffff88807a84b958 R14: 00000000ffffffe4 R15: 0000000000624000 [ 66.431316][ T5022] FS: 00007fb7f8cef6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 66.440314][ T5022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.446929][ T5022] CR2: 00007ffc2f47aff0 CR3: 000000007cda5000 CR4: 00000000003506e0 [ 66.455069][ T5022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.463114][ T5022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.471172][ T5022] Call Trace: [ 66.474511][ T5022] [ 66.477480][ T5022] ? __warn+0xe6/0x380 [ 66.481702][ T5022] ? __btrfs_free_extent+0x19ea/0x2c30 [ 66.487375][ T5022] ? report_bug+0x3bc/0x580 [pid 5020] exit_group(0) = ? [ 66.491952][ T5022] ? handle_bug+0x3c/0x70 [ 66.496310][ T5022] ? exc_invalid_op+0x17/0x40 [ 66.501052][ T5022] ? asm_exc_invalid_op+0x1a/0x20 [ 66.506125][ T5022] ? __warn_printk+0x1a6/0x350 [ 66.511063][ T5022] ? __btrfs_free_extent+0x19ea/0x2c30 [ 66.516553][ T5022] ? lookup_extent_backref+0x110/0x110 [ 66.522069][ T5022] ? __btrfs_run_delayed_refs+0x60b/0x3b80 [ 66.527908][ T5022] ? reacquire_held_locks+0x4b0/0x4b0 [ 66.533455][ T5022] ? _raw_read_unlock+0x28/0x40 [ 66.538355][ T5022] ? btrfs_merge_delayed_refs+0x47e/0x570 [ 66.544169][ T5022] __btrfs_run_delayed_refs+0xd3d/0x3b80 [ 66.549861][ T5022] ? check_ref_cleanup+0x3e0/0x3e0 [ 66.555076][ T5022] ? lock_sync+0x190/0x190 [ 66.559583][ T5022] btrfs_run_delayed_refs+0x1a1/0x510 [ 66.565021][ T5022] btrfs_commit_transaction+0x81a/0x3fd0 [ 66.570754][ T5022] ? create_pending_snapshots+0x2d0/0x2d0 [ 66.576508][ T5022] ? start_transaction+0x2a5/0x14d0 [ 66.581794][ T5022] btrfs_sync_file+0xfa1/0x1310 [ 66.586707][ T5022] ? start_ordered_ops.constprop.0+0x100/0x100 [ 66.593838][ T5022] ? wake_up_var+0x120/0x120 [ 66.598464][ T5022] ? start_ordered_ops.constprop.0+0x100/0x100 [ 66.604793][ T5022] vfs_fsync_range+0x141/0x220 [ 66.609789][ T5022] iomap_dio_complete+0x812/0x9e0 [ 66.615009][ T5022] btrfs_do_write_iter+0xa00/0x11a0 [ 66.620368][ T5022] ? btrfs_fdatawrite_range+0x110/0x110 [ 66.626044][ T5022] ? preempt_count_sub+0x150/0x150 [ 66.631308][ T5022] do_iter_readv_writev+0x21e/0x3c0 [ 66.636641][ T5022] ? generic_copy_file_range+0x1d0/0x1d0 [ 66.642348][ T5022] ? avc_policy_seqno+0x9/0x10 [ 66.647245][ T5022] ? selinux_file_permission+0x126/0x590 [ 66.652949][ T5022] ? security_file_permission+0x94/0x100 [ 66.658822][ T5022] do_iter_write+0x17f/0x830 [ 66.663450][ T5022] vfs_iter_write+0x7a/0xb0 [ 66.667969][ T5022] iter_file_splice_write+0x698/0xbf0 [ 66.673592][ T5022] ? splice_from_pipe_next+0x5d0/0x5d0 [ 66.679110][ T5022] ? warn_unsupported+0xc0/0xc0 [ 66.683993][ T5022] ? security_file_permission+0xdc/0x100 [ 66.689734][ T5022] ? splice_from_pipe_next+0x5d0/0x5d0 [ 66.695241][ T5022] direct_splice_actor+0x118/0x180 [ 66.700462][ T5022] splice_direct_to_actor+0x347/0xa30 [ 66.705862][ T5022] ? folio_flags.constprop.0+0x150/0x150 [ 66.711567][ T5022] ? vfs_splice_read+0x3b0/0x3b0 [ 66.716533][ T5022] ? security_file_permission+0x94/0x100 [ 66.722231][ T5022] do_splice_direct+0x1af/0x280 [ 66.727139][ T5022] ? splice_direct_to_actor+0xa30/0xa30 [ 66.732775][ T5022] ? propagate_umount+0x1af0/0x1af0 [ 66.737998][ T5022] do_sendfile+0xb88/0x1390 [ 66.742564][ T5022] ? vfs_iocb_iter_write+0x4c0/0x4c0 [ 66.747884][ T5022] ? ptrace_notify+0xf4/0x130 [ 66.752609][ T5022] ? reacquire_held_locks+0x4b0/0x4b0 [ 66.758017][ T5022] __x64_sys_sendfile64+0x1d6/0x220 [ 66.764412][ T5022] ? __ia32_sys_sendfile+0x220/0x220 [ 66.769748][ T5022] ? lockdep_hardirqs_on+0x7d/0x100 [ 66.774970][ T5022] ? _raw_spin_unlock_irq+0x2e/0x50 [ 66.780258][ T5022] ? ptrace_notify+0xf4/0x130 [ 66.784978][ T5022] do_syscall_64+0x38/0xb0 [ 66.789481][ T5022] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 66.795506][ T5022] RIP: 0033:0x7fb7f8d32789 [ 66.800199][ T5022] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 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 b0 ff ff ff f7 d8 64 89 01 48 [ 66.819900][ T5022] RSP: 002b:00007fb7f8cef218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 66.828351][ T5022] RAX: ffffffffffffffda RBX: 00007fb7f8dbe608 RCX: 00007fb7f8d32789 [ 66.836423][ T5022] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 [ 66.844462][ T5022] RBP: 00007fb7f8dbe600 R08: 0000000000000000 R09: 0000000000000000 [ 66.852496][ T5022] R10: 000000000880000c R11: 0000000000000246 R12: 00007fb7f8d8b66c [ 66.860695][ T5022] R13: 0000000020000600 R14: 00007fb7f8d860c0 R15: 0030656c69662f2e [ 66.868738][ T5022] [ 66.871781][ T5022] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 66.879055][ T5022] CPU: 1 PID: 5022 Comm: syz-executor171 Not tainted 6.5.0-rc6-syzkaller #0 [ 66.888089][ T5022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 66.898274][ T5022] Call Trace: [ 66.901563][ T5022] [ 66.904499][ T5022] dump_stack_lvl+0xd9/0x1b0 [ 66.909200][ T5022] panic+0x6a4/0x750 [ 66.913293][ T5022] ? panic_smp_self_stop+0xa0/0xa0 [ 66.918409][ T5022] ? show_trace_log_lvl+0x29d/0x3c0 [ 66.923612][ T5022] ? __btrfs_free_extent+0x19ea/0x2c30 [ 66.929086][ T5022] check_panic_on_warn+0xab/0xb0 [ 66.934036][ T5022] __warn+0xf2/0x380 [ 66.937931][ T5022] ? __btrfs_free_extent+0x19ea/0x2c30 [ 66.943396][ T5022] report_bug+0x3bc/0x580 [ 66.947741][ T5022] handle_bug+0x3c/0x70 [ 66.951939][ T5022] exc_invalid_op+0x17/0x40 [ 66.956454][ T5022] asm_exc_invalid_op+0x1a/0x20 [ 66.961315][ T5022] RIP: 0010:__btrfs_free_extent+0x19ea/0x2c30 [ 66.967399][ T5022] Code: 00 e8 0a 1d 1a fe 0f 1f 44 00 00 bb 01 00 00 00 e9 f5 f7 ff ff e8 f6 1c 1a fe 8b 74 24 58 48 c7 c7 80 f2 b4 8a e8 46 de e0 fd <0f> 0b e9 eb f0 ff ff e8 da 1c 1a fe 48 8b 54 24 30 48 b8 00 00 00 [ 66.987029][ T5022] RSP: 0018:ffffc900033eef90 EFLAGS: 00010282 [ 66.993105][ T5022] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 67.001081][ T5022] RDX: ffff88801878a000 RSI: ffffffff814be3c6 RDI: 0000000000000001 [ 67.010362][ T5022] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 67.018356][ T5022] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802cf3bf20 [ 67.026394][ T5022] R13: ffff88807a84b958 R14: 00000000ffffffe4 R15: 0000000000624000 [ 67.034476][ T5022] ? __warn_printk+0x1a6/0x350 [ 67.039264][ T5022] ? lookup_extent_backref+0x110/0x110 [ 67.045434][ T5022] ? __btrfs_run_delayed_refs+0x60b/0x3b80 [ 67.051257][ T5022] ? reacquire_held_locks+0x4b0/0x4b0 [ 67.056739][ T5022] ? _raw_read_unlock+0x28/0x40 [ 67.061739][ T5022] ? btrfs_merge_delayed_refs+0x47e/0x570 [ 67.067566][ T5022] __btrfs_run_delayed_refs+0xd3d/0x3b80 [ 67.073222][ T5022] ? check_ref_cleanup+0x3e0/0x3e0 [ 67.078348][ T5022] ? lock_sync+0x190/0x190 [ 67.082781][ T5022] btrfs_run_delayed_refs+0x1a1/0x510 [ 67.088167][ T5022] btrfs_commit_transaction+0x81a/0x3fd0 [ 67.093815][ T5022] ? create_pending_snapshots+0x2d0/0x2d0 [ 67.099547][ T5022] ? start_transaction+0x2a5/0x14d0 [ 67.104758][ T5022] btrfs_sync_file+0xfa1/0x1310 [ 67.109634][ T5022] ? start_ordered_ops.constprop.0+0x100/0x100 [ 67.115832][ T5022] ? wake_up_var+0x120/0x120 [ 67.120446][ T5022] ? start_ordered_ops.constprop.0+0x100/0x100 [ 67.126627][ T5022] vfs_fsync_range+0x141/0x220 [ 67.131407][ T5022] iomap_dio_complete+0x812/0x9e0 [ 67.136453][ T5022] btrfs_do_write_iter+0xa00/0x11a0 [ 67.141939][ T5022] ? btrfs_fdatawrite_range+0x110/0x110 [ 67.148033][ T5022] ? preempt_count_sub+0x150/0x150 [ 67.153167][ T5022] do_iter_readv_writev+0x21e/0x3c0 [ 67.158396][ T5022] ? generic_copy_file_range+0x1d0/0x1d0 [ 67.164055][ T5022] ? avc_policy_seqno+0x9/0x10 [ 67.168839][ T5022] ? selinux_file_permission+0x126/0x590 [ 67.174497][ T5022] ? security_file_permission+0x94/0x100 [ 67.180153][ T5022] do_iter_write+0x17f/0x830 [ 67.184771][ T5022] vfs_iter_write+0x7a/0xb0 [ 67.189305][ T5022] iter_file_splice_write+0x698/0xbf0 [ 67.194691][ T5022] ? splice_from_pipe_next+0x5d0/0x5d0 [ 67.200169][ T5022] ? warn_unsupported+0xc0/0xc0 [ 67.205033][ T5022] ? security_file_permission+0xdc/0x100 [ 67.210677][ T5022] ? splice_from_pipe_next+0x5d0/0x5d0 [ 67.216156][ T5022] direct_splice_actor+0x118/0x180 [ 67.221462][ T5022] splice_direct_to_actor+0x347/0xa30 [ 67.226849][ T5022] ? folio_flags.constprop.0+0x150/0x150 [ 67.232500][ T5022] ? vfs_splice_read+0x3b0/0x3b0 [ 67.237449][ T5022] ? security_file_permission+0x94/0x100 [ 67.243097][ T5022] do_splice_direct+0x1af/0x280 [ 67.247960][ T5022] ? splice_direct_to_actor+0xa30/0xa30 [ 67.253521][ T5022] ? propagate_umount+0x1af0/0x1af0 [ 67.258734][ T5022] do_sendfile+0xb88/0x1390 [ 67.263275][ T5022] ? vfs_iocb_iter_write+0x4c0/0x4c0 [ 67.268585][ T5022] ? ptrace_notify+0xf4/0x130 [ 67.273280][ T5022] ? reacquire_held_locks+0x4b0/0x4b0 [ 67.278685][ T5022] __x64_sys_sendfile64+0x1d6/0x220 [ 67.283912][ T5022] ? __ia32_sys_sendfile+0x220/0x220 [ 67.289210][ T5022] ? lockdep_hardirqs_on+0x7d/0x100 [ 67.294436][ T5022] ? _raw_spin_unlock_irq+0x2e/0x50 [ 67.299659][ T5022] ? ptrace_notify+0xf4/0x130 [ 67.304354][ T5022] do_syscall_64+0x38/0xb0 [ 67.308784][ T5022] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.314710][ T5022] RIP: 0033:0x7fb7f8d32789 [ 67.319221][ T5022] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 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 b0 ff ff ff f7 d8 64 89 01 48 [ 67.338845][ T5022] RSP: 002b:00007fb7f8cef218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 67.347976][ T5022] RAX: ffffffffffffffda RBX: 00007fb7f8dbe608 RCX: 00007fb7f8d32789 [ 67.356309][ T5022] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 [ 67.364336][ T5022] RBP: 00007fb7f8dbe600 R08: 0000000000000000 R09: 0000000000000000 [ 67.372511][ T5022] R10: 000000000880000c R11: 0000000000000246 R12: 00007fb7f8d8b66c [ 67.380798][ T5022] R13: 0000000020000600 R14: 00007fb7f8d860c0 R15: 0030656c69662f2e [ 67.388797][ T5022] [ 67.392047][ T5022] Kernel Offset: disabled [ 67.396473][ T5022] Rebooting in 86400 seconds..