./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2074376921 <...> Warning: Permanently added '10.128.1.147' (ED25519) to the list of known hosts. execve("./syz-executor2074376921", ["./syz-executor2074376921"], 0x7fff25af7a20 /* 10 vars */) = 0 brk(NULL) = 0x55557e92d000 brk(0x55557e92dd00) = 0x55557e92dd00 arch_prctl(ARCH_SET_FS, 0x55557e92d380) = 0 set_tid_address(0x55557e92d650) = 5214 set_robust_list(0x55557e92d660, 24) = 0 rseq(0x55557e92dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2074376921", 4096) = 28 getrandom("\x01\x5d\x01\x68\xd5\xb3\x75\x3d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557e92dd00 brk(0x55557e94ed00) = 0x55557e94ed00 brk(0x55557e94f000) = 0x55557e94f000 mprotect(0x7f3a25630000, 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 mkdir("./syzkaller.9MVdor", 0700) = 0 chmod("./syzkaller.9MVdor", 0777) = 0 chdir("./syzkaller.9MVdor") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5215 attached [pid 5215] set_robust_list(0x55557e92d660, 24 [pid 5214] <... clone resumed>, child_tidptr=0x55557e92d650) = 5215 [pid 5215] <... set_robust_list resumed>) = 0 [pid 5215] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setsid() = 1 [pid 5215] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5215] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5215] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5215] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5215] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5215] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5215] unshare(CLONE_NEWNS) = 0 [pid 5215] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5215] unshare(CLONE_NEWIPC) = 0 [pid 5215] unshare(CLONE_NEWCGROUP) = 0 [pid 5215] unshare(CLONE_NEWUTS) = 0 [pid 5215] unshare(CLONE_SYSVSEM) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "16777216", 8) = 8 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "536870912", 9) = 9 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1024", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "8192", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1024", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1024", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5215] close(3) = 0 [pid 5215] getpid() = 1 [pid 5215] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 5215] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5215] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5215] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0 [pid 5215] getdents64(3, 0x55557e92e6f0 /* 4 entries */, 32768) = 112 [pid 5215] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5215] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5215] unlink("./0/binderfs") = 0 [pid 5215] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 5215] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0755, st_size=64, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5215] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 5215] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5215] newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=64, ...}, AT_EMPTY_PATH) = 0 [pid 5215] getdents64(4, 0x55557e936730 /* 2 entries */, 32768) = 48 [pid 5215] getdents64(4, 0x55557e936730, 32768) = -1 EIO (Input/output error) [pid 5215] close(4) = 0 [pid 5215] rmdir("./0/file1") = -1 EBUSY (Device or resource busy) [pid 5215] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 5215] exit_group(1) = ? [ 67.660679][ T5215] BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf [ 67.673510][ T5215] ================================================================== [ 67.681601][ T5215] BUG: KASAN: slab-use-after-free in rb_first_postorder+0x69/0x90 [ 67.689446][ T5215] Read of size 8 at addr ffff888011beb010 by task syz-executor207/5215 [ 67.697676][ T5215] [ 67.700015][ T5215] CPU: 1 UID: 0 PID: 5215 Comm: syz-executor207 Not tainted 6.11.0-syzkaller-07462-g1868f9d0260e #0 [ 67.710955][ T5215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 67.721038][ T5215] Call Trace: [ 67.724320][ T5215] [ 67.727261][ T5215] dump_stack_lvl+0x241/0x360 [ 67.731963][ T5215] ? __pfx_dump_stack_lvl+0x10/0x10 [ 67.737176][ T5215] ? __pfx__printk+0x10/0x10 [ 67.741803][ T5215] ? _printk+0xd5/0x120 [ 67.745967][ T5215] ? __virt_addr_valid+0x183/0x530 [ 67.751077][ T5215] ? __virt_addr_valid+0x183/0x530 [ 67.756278][ T5215] print_report+0x169/0x550 [ 67.760785][ T5215] ? __virt_addr_valid+0x183/0x530 [ 67.765899][ T5215] ? __virt_addr_valid+0x183/0x530 [ 67.771011][ T5215] ? __virt_addr_valid+0x45f/0x530 [ 67.776129][ T5215] ? __phys_addr+0xba/0x170 [ 67.780635][ T5215] ? rb_first_postorder+0x69/0x90 [ 67.785675][ T5215] kasan_report+0x143/0x180 [ 67.790184][ T5215] ? rb_first_postorder+0x69/0x90 [ 67.795225][ T5215] rb_first_postorder+0x69/0x90 [ 67.800086][ T5215] btrfs_cleanup_defrag_inodes+0x2f/0x80 [ 67.805739][ T5215] close_ctree+0x2af/0xd20 [ 67.810169][ T5215] ? hook_sb_delete+0x867/0xbb0 [ 67.815023][ T5215] ? __pfx_close_ctree+0x10/0x10 [ 67.819970][ T5215] ? hook_sb_delete+0x1a3/0xbb0 [ 67.824821][ T5215] ? __pfx_hook_sb_delete+0x10/0x10 [ 67.830057][ T5215] ? __pfx_evict_inodes+0x10/0x10 [ 67.835086][ T5215] ? __pfx_btrfs_put_super+0x10/0x10 [ 67.840377][ T5215] generic_shutdown_super+0x139/0x2d0 [ 67.845766][ T5215] kill_anon_super+0x3b/0x70 [ 67.850365][ T5215] btrfs_kill_super+0x41/0x50 [ 67.855049][ T5215] deactivate_locked_super+0xc4/0x130 [ 67.860429][ T5215] cleanup_mnt+0x41f/0x4b0 [ 67.864856][ T5215] ? lockdep_hardirqs_on+0x99/0x150 [ 67.870080][ T5215] task_work_run+0x24f/0x310 [ 67.874678][ T5215] ? kasan_quarantine_put+0xdc/0x230 [ 67.879971][ T5215] ? __pfx_task_work_run+0x10/0x10 [ 67.885087][ T5215] ? do_exit+0xa2a/0x27f0 [ 67.889420][ T5215] ? kmem_cache_free+0x1a3/0x420 [ 67.894365][ T5215] ? do_exit+0xa2a/0x27f0 [ 67.898706][ T5215] do_exit+0xa2f/0x27f0 [ 67.902878][ T5215] ? __pfx_do_exit+0x10/0x10 [ 67.907471][ T5215] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 67.913462][ T5215] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.919802][ T5215] ? _raw_spin_unlock_irq+0x23/0x50 [ 67.925005][ T5215] ? lockdep_hardirqs_on+0x99/0x150 [ 67.930213][ T5215] do_group_exit+0x207/0x2c0 [ 67.934806][ T5215] __x64_sys_exit_group+0x3f/0x40 [ 67.939833][ T5215] x64_sys_call+0x2634/0x2640 [ 67.944521][ T5215] do_syscall_64+0xf3/0x230 [ 67.949039][ T5215] ? clear_bhb_loop+0x35/0x90 [ 67.953729][ T5215] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.959664][ T5215] RIP: 0033:0x7f3a255b4809 [ 67.964088][ T5215] Code: Unable to access opcode bytes at 0x7f3a255b47df. [ 67.971103][ T5215] RSP: 002b:00007fffb78455a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 67.979524][ T5215] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3a255b4809 [ 67.987537][ T5215] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 67.995521][ T5215] RBP: 00007f3a25636390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 68.003502][ T5215] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f3a25636390 [ 68.011484][ T5215] R13: 0000000000000000 R14: 00007f3a25637100 R15: 00007f3a255827a0 [ 68.019470][ T5215] [ 68.022490][ T5215] [ 68.024816][ T5215] Allocated by task 5218: [ 68.029144][ T5215] kasan_save_track+0x3f/0x80 [ 68.033837][ T5215] __kasan_slab_alloc+0x66/0x80 [ 68.038709][ T5215] kmem_cache_alloc_noprof+0x135/0x2a0 [ 68.044192][ T5215] btrfs_add_inode_defrag+0x15c/0x790 [ 68.049608][ T5215] cow_file_range+0x380/0x11f0 [ 68.054404][ T5215] btrfs_run_delalloc_range+0x33d/0xf70 [ 68.059962][ T5215] writepage_delalloc+0x482/0x7d0 [ 68.064995][ T5215] btrfs_writepages+0x1157/0x2370 [ 68.070042][ T5215] do_writepages+0x35d/0x870 [ 68.074655][ T5215] filemap_fdatawrite_wbc+0x125/0x180 [ 68.080044][ T5215] filemap_fdatawrite_range+0x120/0x180 [ 68.085596][ T5215] btrfs_fdatawrite_range+0x53/0xe0 [ 68.090799][ T5215] btrfs_direct_write+0x565/0xa70 [ 68.096021][ T5215] btrfs_do_write_iter+0x2a0/0x760 [ 68.101133][ T5215] vfs_write+0xa6d/0xc90 [ 68.105388][ T5215] __x64_sys_pwrite64+0x1aa/0x230 [ 68.110420][ T5215] do_syscall_64+0xf3/0x230 [ 68.114933][ T5215] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.120849][ T5215] [ 68.123180][ T5215] Freed by task 5218: [ 68.127170][ T5215] kasan_save_track+0x3f/0x80 [ 68.131865][ T5215] kasan_save_free_info+0x40/0x50 [ 68.136906][ T5215] __kasan_slab_free+0x59/0x70 [ 68.141689][ T5215] kmem_cache_free+0x1a3/0x420 [ 68.146467][ T5215] btrfs_cleanup_defrag_inodes+0x51/0x80 [ 68.152104][ T5215] btrfs_reconfigure+0x269c/0x2d40 [ 68.157224][ T5215] reconfigure_super+0x445/0x880 [ 68.162169][ T5215] __se_sys_fsconfig+0xb68/0xf70 [ 68.167126][ T5215] do_syscall_64+0xf3/0x230 [ 68.171644][ T5215] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.177546][ T5215] [ 68.179872][ T5215] The buggy address belongs to the object at ffff888011beb000 [ 68.179872][ T5215] which belongs to the cache btrfs_inode_defrag of size 56 [ 68.194474][ T5215] The buggy address is located 16 bytes inside of [ 68.194474][ T5215] freed 56-byte region [ffff888011beb000, ffff888011beb038) [ 68.208112][ T5215] [ 68.210439][ T5215] The buggy address belongs to the physical page: [ 68.216864][ T5215] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11beb [ 68.225633][ T5215] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 68.232751][ T5215] page_type: 0xfdffffff(slab) [ 68.237434][ T5215] raw: 00fff00000000000 ffff88802f0d2000 dead000000000122 0000000000000000 [ 68.246018][ T5215] raw: 0000000000000000 00000000802e002e 00000001fdffffff 0000000000000000 [ 68.254595][ T5215] page dumped because: kasan: bad access detected [ 68.261013][ T5215] page_owner tracks the page as allocated [ 68.266721][ T5215] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5218, tgid 5218 (syz-executor207), ts 66928155163, free_ts 66428245005 [ 68.286083][ T5215] post_alloc_hook+0x1f3/0x230 [ 68.290950][ T5215] get_page_from_freelist+0x2e4c/0x2f10 [ 68.296587][ T5215] __alloc_pages_noprof+0x256/0x6c0 [ 68.301783][ T5215] alloc_pages_mpol_noprof+0x3e8/0x680 [ 68.307244][ T5215] alloc_slab_page+0x6a/0x130 [ 68.311942][ T5215] allocate_slab+0x5a/0x2f0 [ 68.316466][ T5215] ___slab_alloc+0xcd1/0x14b0 [ 68.321162][ T5215] __slab_alloc+0x58/0xa0 [ 68.325506][ T5215] kmem_cache_alloc_noprof+0x1c1/0x2a0 [ 68.330976][ T5215] btrfs_add_inode_defrag+0x15c/0x790 [ 68.336362][ T5215] cow_file_range+0x380/0x11f0 [ 68.341138][ T5215] btrfs_run_delalloc_range+0x33d/0xf70 [ 68.346695][ T5215] writepage_delalloc+0x482/0x7d0 [ 68.351718][ T5215] btrfs_writepages+0x1157/0x2370 [ 68.356752][ T5215] do_writepages+0x35d/0x870 [ 68.361340][ T5215] filemap_fdatawrite_wbc+0x125/0x180 [ 68.366711][ T5215] page last free pid 5216 tgid 5216 stack trace: [ 68.373029][ T5215] free_unref_page+0xd19/0xea0 [ 68.377794][ T5215] __put_partials+0xeb/0x130 [ 68.382402][ T5215] put_cpu_partial+0x17c/0x250 [ 68.387172][ T5215] __slab_free+0x2ea/0x3d0 [ 68.391601][ T5215] qlist_free_all+0x9e/0x140 [ 68.396192][ T5215] kasan_quarantine_reduce+0x14f/0x170 [ 68.401663][ T5215] __kasan_slab_alloc+0x23/0x80 [ 68.406511][ T5215] kmem_cache_alloc_noprof+0x135/0x2a0 [ 68.411968][ T5215] getname_flags+0xb7/0x540 [ 68.416467][ T5215] do_sys_openat2+0xd2/0x1d0 [ 68.421055][ T5215] __x64_sys_openat+0x247/0x2a0 [ 68.425996][ T5215] do_syscall_64+0xf3/0x230 [ 68.430507][ T5215] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.436419][ T5215] [ 68.438742][ T5215] Memory state around the buggy address: [ 68.444367][ T5215] ffff888011beaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 68.452433][ T5215] ffff888011beaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 68.460528][ T5215] >ffff888011beb000: fa fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc [ 68.468588][ T5215] ^ [ 68.473172][ T5215] ffff888011beb080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 68.481231][ T5215] ffff888011beb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 68.489309][ T5215] ================================================================== [ 68.497599][ T5215] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 68.504813][ T5215] CPU: 1 UID: 0 PID: 5215 Comm: syz-executor207 Not tainted 6.11.0-syzkaller-07462-g1868f9d0260e #0 [ 68.515570][ T5215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 68.525629][ T5215] Call Trace: [ 68.528909][ T5215] [ 68.531841][ T5215] dump_stack_lvl+0x241/0x360 [ 68.536532][ T5215] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.541738][ T5215] ? __pfx__printk+0x10/0x10 [ 68.546337][ T5215] ? vscnprintf+0x5d/0x90 [ 68.550671][ T5215] panic+0x349/0x880 [ 68.554572][ T5215] ? check_panic_on_warn+0x21/0xb0 [ 68.559687][ T5215] ? __pfx_panic+0x10/0x10 [ 68.564111][ T5215] ? mark_lock+0x9a/0x360 [ 68.568438][ T5215] ? _raw_spin_unlock_irqrestore+0xd8/0x140 [ 68.574339][ T5215] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 68.580238][ T5215] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 68.586573][ T5215] ? print_report+0x502/0x550 [ 68.591258][ T5215] check_panic_on_warn+0x86/0xb0 [ 68.596200][ T5215] ? rb_first_postorder+0x69/0x90 [ 68.601235][ T5215] end_report+0x77/0x160 [ 68.605488][ T5215] kasan_report+0x154/0x180 [ 68.610017][ T5215] ? rb_first_postorder+0x69/0x90 [ 68.615055][ T5215] rb_first_postorder+0x69/0x90 [ 68.620007][ T5215] btrfs_cleanup_defrag_inodes+0x2f/0x80 [ 68.625657][ T5215] close_ctree+0x2af/0xd20 [ 68.630087][ T5215] ? hook_sb_delete+0x867/0xbb0 [ 68.634945][ T5215] ? __pfx_close_ctree+0x10/0x10 [ 68.639895][ T5215] ? hook_sb_delete+0x1a3/0xbb0 [ 68.644750][ T5215] ? __pfx_hook_sb_delete+0x10/0x10 [ 68.650041][ T5215] ? __pfx_evict_inodes+0x10/0x10 [ 68.655070][ T5215] ? __pfx_btrfs_put_super+0x10/0x10 [ 68.660461][ T5215] generic_shutdown_super+0x139/0x2d0 [ 68.665846][ T5215] kill_anon_super+0x3b/0x70 [ 68.670444][ T5215] btrfs_kill_super+0x41/0x50 [ 68.675127][ T5215] deactivate_locked_super+0xc4/0x130 [ 68.680857][ T5215] cleanup_mnt+0x41f/0x4b0 [ 68.685290][ T5215] ? lockdep_hardirqs_on+0x99/0x150 [ 68.690501][ T5215] task_work_run+0x24f/0x310 [ 68.695099][ T5215] ? kasan_quarantine_put+0xdc/0x230 [ 68.700408][ T5215] ? __pfx_task_work_run+0x10/0x10 [ 68.705535][ T5215] ? do_exit+0xa2a/0x27f0 [ 68.709863][ T5215] ? kmem_cache_free+0x1a3/0x420 [ 68.714804][ T5215] ? do_exit+0xa2a/0x27f0 [ 68.719138][ T5215] do_exit+0xa2f/0x27f0 [ 68.723392][ T5215] ? __pfx_do_exit+0x10/0x10 [ 68.727993][ T5215] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 68.733987][ T5215] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.740323][ T5215] ? _raw_spin_unlock_irq+0x23/0x50 [ 68.745530][ T5215] ? lockdep_hardirqs_on+0x99/0x150 [ 68.750750][ T5215] do_group_exit+0x207/0x2c0 [ 68.755389][ T5215] __x64_sys_exit_group+0x3f/0x40 [ 68.760419][ T5215] x64_sys_call+0x2634/0x2640 [ 68.765120][ T5215] do_syscall_64+0xf3/0x230 [ 68.769636][ T5215] ? clear_bhb_loop+0x35/0x90 [ 68.774324][ T5215] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.780586][ T5215] RIP: 0033:0x7f3a255b4809 [ 68.785002][ T5215] Code: Unable to access opcode bytes at 0x7f3a255b47df. [ 68.792016][ T5215] RSP: 002b:00007fffb78455a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 68.800432][ T5215] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3a255b4809 [ 68.808405][ T5215] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 68.816405][ T5215] RBP: 00007f3a25636390 R08: ffffffffffffffb8 R09: 0000000000000000 [ 68.824386][ T5215] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f3a25636390 [ 68.832360][ T5215] R13: 0000000000000000 R14: 00007f3a25637100 R15: 00007f3a255827a0 [ 68.840380][ T5215] [ 68.843820][ T5215] Kernel Offset: disabled [ 68.848151][ T5215] Rebooting in 86400 seconds..