./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor337228599 <...> Warning: Permanently added '10.128.1.54' (ED25519) to the list of known hosts. execve("./syz-executor337228599", ["./syz-executor337228599"], 0x7ffc17044d60 /* 10 vars */) = 0 brk(NULL) = 0x555555a0f000 brk(0x555555a0fd00) = 0x555555a0fd00 arch_prctl(ARCH_SET_FS, 0x555555a0f380) = 0 set_tid_address(0x555555a0f650) = 5058 set_robust_list(0x555555a0f660, 24) = 0 rseq(0x555555a0fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor337228599", 4096) = 27 getrandom("\xe5\x8b\x64\x16\x79\x38\x50\x10", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555a0fd00 brk(0x555555a30d00) = 0x555555a30d00 brk(0x555555a31000) = 0x555555a31000 mprotect(0x7fe98b266000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe982c00000 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 munmap(0x7fe982c00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 74.331785][ T5058] loop0: detected capacity change from 0 to 32768 [ 74.363328][ T5058] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 74.371903][ T5058] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 74.402485][ T5058] gfs2: fsid=syz:syz.0: journal 0 mapped with 20 extents in 0ms [ 74.411992][ T5058] general protection fault, probably for non-canonical address 0xdffffc0000000097: 0000 [#1] PREEMPT SMP KASAN PTI [ 74.424153][ T5058] KASAN: null-ptr-deref in range [0x00000000000004b8-0x00000000000004bf] [ 74.432557][ T5058] CPU: 0 PID: 5058 Comm: syz-executor337 Not tainted 6.8.0-rc3-syzkaller-00041-g547ab8fc4cb0 #0 [ 74.442960][ T5058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 74.453093][ T5058] RIP: 0010:gfs2_rindex_update+0xbc/0x3d0 [ 74.458846][ T5058] Code: e8 f9 65 1d fe 4c 8d 74 24 60 48 8b 03 48 89 44 24 38 48 8d 98 b8 04 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 c6 65 1d fe 48 8b 03 48 89 44 24 20 [ 74.478631][ T5058] RSP: 0018:ffffc900040671a0 EFLAGS: 00010202 [ 74.484697][ T5058] RAX: 0000000000000097 RBX: 00000000000004b8 RCX: dffffc0000000000 [ 74.492663][ T5058] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807f558000 [ 74.500631][ T5058] RBP: ffffc900040672b0 R08: ffffffff83cb50d7 R09: 1ffff1100f02e2f8 [ 74.508597][ T5058] R10: dffffc0000000000 R11: ffffed100f02e2f9 R12: 1ffff9200080ce3c [ 74.516648][ T5058] R13: ffff88807f558000 R14: ffffc90004067200 R15: 0000000000000001 [ 74.524613][ T5058] FS: 0000555555a0f380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 74.533537][ T5058] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.540149][ T5058] CR2: 000056427a53bb08 CR3: 0000000022d54000 CR4: 00000000003506f0 [ 74.548118][ T5058] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.556089][ T5058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.564053][ T5058] Call Trace: [ 74.567359][ T5058] [ 74.570289][ T5058] ? __die_body+0x8b/0xe0 [ 74.574625][ T5058] ? die_addr+0x108/0x140 [ 74.578957][ T5058] ? exc_general_protection+0x3da/0x5c0 [ 74.584523][ T5058] ? asm_exc_general_protection+0x26/0x30 [ 74.590246][ T5058] ? punch_hole+0xe67/0x3a30 [ 74.594854][ T5058] ? gfs2_rindex_update+0xbc/0x3d0 [ 74.599969][ T5058] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 74.605859][ T5058] ? __pfx_gfs2_rindex_update+0x10/0x10 [ 74.611403][ T5058] ? __pfx_gfs2_meta_buffer+0x10/0x10 [ 74.616772][ T5058] ? punch_hole+0x6a0/0x3a30 [ 74.621367][ T5058] ? __fillup_metapath+0x262/0x2d0 [ 74.626480][ T5058] punch_hole+0xe7b/0x3a30 [ 74.630899][ T5058] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 74.636896][ T5058] ? gfs2_meta_read+0x870/0x9b0 [ 74.641754][ T5058] ? __pfx_gfs2_meta_read+0x10/0x10 [ 74.646948][ T5058] ? __pfx_punch_hole+0x10/0x10 [ 74.651796][ T5058] ? gfs2_meta_buffer+0x278/0x410 [ 74.656825][ T5058] ? __pfx_lock_acquire+0x10/0x10 [ 74.661859][ T5058] ? __pfx_wake_up_bit+0x10/0x10 [ 74.666804][ T5058] ? gfs2_glock_nq+0x1250/0x1ab0 [ 74.671747][ T5058] gfs2_truncatei_resume+0x3c/0x70 [ 74.676859][ T5058] gfs2_glock_wait+0x1df/0x2b0 [ 74.681630][ T5058] init_journal+0x1680/0x23f0 [ 74.686314][ T5058] ? init_inodes+0xdc/0x320 [ 74.690904][ T5058] ? __pfx_init_journal+0x10/0x10 [ 74.695930][ T5058] ? init_sb+0xc37/0x1330 [ 74.700268][ T5058] ? snprintf+0xda/0x120 [ 74.704506][ T5058] ? init_inodes+0xdc/0x320 [ 74.709008][ T5058] ? __pfx_snprintf+0x10/0x10 [ 74.713682][ T5058] init_inodes+0xdc/0x320 [ 74.718099][ T5058] gfs2_fill_super+0x1edb/0x26c0 [ 74.723043][ T5058] ? __pfx_gfs2_fill_super+0x10/0x10 [ 74.728328][ T5058] ? snprintf+0xda/0x120 [ 74.732573][ T5058] ? __pfx_lock_release+0x10/0x10 [ 74.737606][ T5058] ? do_raw_spin_lock+0x14e/0x370 [ 74.742626][ T5058] ? __pfx_snprintf+0x10/0x10 [ 74.747292][ T5058] ? set_blocksize+0x1df/0x390 [ 74.752054][ T5058] ? init_locking+0xbd/0x210 [ 74.756639][ T5058] ? sb_set_blocksize+0x99/0x100 [ 74.761578][ T5058] ? setup_bdev_super+0x4c8/0x5c0 [ 74.766598][ T5058] get_tree_bdev+0x3f7/0x570 [ 74.771188][ T5058] ? __pfx_gfs2_fill_super+0x10/0x10 [ 74.776473][ T5058] ? __pfx_get_tree_bdev+0x10/0x10 [ 74.781581][ T5058] ? __pfx_vfs_parse_fs_string+0x10/0x10 [ 74.787210][ T5058] gfs2_get_tree+0x54/0x220 [ 74.791723][ T5058] ? bpf_lsm_capable+0x9/0x10 [ 74.796423][ T5058] vfs_get_tree+0x90/0x2a0 [ 74.800839][ T5058] do_new_mount+0x2be/0xb40 [ 74.805337][ T5058] ? ns_capable+0x89/0xf0 [ 74.809667][ T5058] ? __pfx_do_new_mount+0x10/0x10 [ 74.814689][ T5058] __se_sys_mount+0x2d9/0x3c0 [ 74.819364][ T5058] ? __pfx___se_sys_mount+0x10/0x10 [ 74.824559][ T5058] ? do_syscall_64+0x108/0x240 [ 74.829322][ T5058] ? __x64_sys_mount+0x20/0xc0 [ 74.834088][ T5058] do_syscall_64+0xf9/0x240 [ 74.838599][ T5058] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 74.844490][ T5058] RIP: 0033:0x7fe98b1e18ba [ 74.848898][ T5058] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 74.868496][ T5058] RSP: 002b:00007ffe3b0f9eb8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 74.876903][ T5058] RAX: ffffffffffffffda RBX: 00007ffe3b0f9ec0 RCX: 00007fe98b1e18ba [ 74.884870][ T5058] RDX: 0000000020000040 RSI: 0000000020000100 RDI: 00007ffe3b0f9ec0 [ 74.892835][ T5058] RBP: 0000000000000004 R08: 00007ffe3b0f9f00 R09: 0000000000012783 [ 74.900801][ T5058] R10: 0000000000008c1b R11: 0000000000000282 R12: 00007ffe3b0f9f00 [ 74.908764][ T5058] R13: 0000000000000003 R14: 0000000001000000 R15: 0000000000000001 [ 74.916737][ T5058] [ 74.919752][ T5058] Modules linked in: [ 74.924092][ T5058] ---[ end trace 0000000000000000 ]--- [ 74.929671][ T5058] RIP: 0010:gfs2_rindex_update+0xbc/0x3d0 [ 74.935436][ T5058] Code: e8 f9 65 1d fe 4c 8d 74 24 60 48 8b 03 48 89 44 24 38 48 8d 98 b8 04 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 c6 65 1d fe 48 8b 03 48 89 44 24 20 [ 74.955653][ T5058] RSP: 0018:ffffc900040671a0 EFLAGS: 00010202 [ 74.961865][ T5058] RAX: 0000000000000097 RBX: 00000000000004b8 RCX: dffffc0000000000 [ 74.969957][ T5058] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807f558000 [ 74.977980][ T5058] RBP: ffffc900040672b0 R08: ffffffff83cb50d7 R09: 1ffff1100f02e2f8 [ 74.985955][ T5058] R10: dffffc0000000000 R11: ffffed100f02e2f9 R12: 1ffff9200080ce3c [ 74.993958][ T5058] R13: ffff88807f558000 R14: ffffc90004067200 R15: 0000000000000001 [ 75.001965][ T5058] FS: 0000555555a0f380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 75.011019][ T5058] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.017633][ T5058] CR2: 000056427a53bb08 CR3: 0000000022d54000 CR4: 00000000003506f0 [ 75.025602][ T5058] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.033604][ T5058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.041616][ T5058] Kernel panic - not syncing: Fatal exception [ 75.047882][ T5058] Kernel Offset: disabled [ 75.052210][ T5058] Rebooting in 86400 seconds..