./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor901527028 <...> Warning: Permanently added '10.128.1.5' (ED25519) to the list of known hosts. execve("./syz-executor901527028", ["./syz-executor901527028"], 0x7ffde962ac90 /* 10 vars */) = 0 brk(NULL) = 0x55556211b000 brk(0x55556211bd00) = 0x55556211bd00 arch_prctl(ARCH_SET_FS, 0x55556211b380) = 0 set_tid_address(0x55556211b650) = 5829 set_robust_list(0x55556211b660, 24) = 0 rseq(0x55556211bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor901527028", 4096) = 27 getrandom("\xd4\xb0\x2b\xaa\x37\x43\x01\x69", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556211bd00 brk(0x55556213cd00) = 0x55556213cd00 brk(0x55556213d000) = 0x55556213d000 mprotect(0x7f8437121000, 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./strace-static-x86_64: Process 5831 attached [pid 5831] set_robust_list(0x55556211b660, 24 [pid 5829] <... clone resumed>, child_tidptr=0x55556211b650) = 5831 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5831] setpgid(0, 0) = 0 [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5831] write(3, "1000", 4) = 4 [pid 5831] close(3) = 0 executing program [pid 5831] write(1, "executing program\n", 18) = 18 [pid 5831] memfd_create("syzkaller", 0) = 3 [pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f842ec00000 [pid 5831] 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 5831] munmap(0x7f842ec00000, 138412032) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5831] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5831] close(3) = 0 [pid 5831] close(4) = 0 [pid 5831] mkdir("./file0", 0777) = 0 [ 58.884780][ T5831] loop0: detected capacity change from 0 to 32768 [ 58.932951][ T5831] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 58.941350][ T5831] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 58.958894][ T5831] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 58.969069][ T47] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 58.976082][ T47] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 59.024307][ T47] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 48ms [ 59.033212][ T47] gfs2: fsid=syz:syz.0: jid=0: Done [ 59.039430][ T5831] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 59.369391][ T5831] gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 176779 [ 59.380365][ T5831] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed - function = gfs2_qd_dispose, file = fs/gfs2/quota.c, line = 129 [ 59.394514][ T5831] ------------[ cut here ]------------ [ 59.400007][ T5831] kernel BUG at fs/gfs2/util.c:414! [ 59.405374][ T5831] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 59.412333][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor901 Not tainted 6.12.0-next-20241120-syzkaller #0 [ 59.422567][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 59.432619][ T5831] RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 [ 59.438443][ T5831] Code: fe 48 c7 c7 c0 c5 4d 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 37 37 17 fd e8 42 ba af fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 59.458040][ T5831] RSP: 0018:ffffc90003f5f608 EFLAGS: 00010293 [ 59.464108][ T5831] RAX: ffffffff83efc07e RBX: 0000000000000004 RCX: ffff888030943c00 [ 59.472073][ T5831] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 59.480040][ T5831] RBP: ffff88803539c000 R08: ffffffff83efbf37 R09: fffffbfff1cfa218 [ 59.488005][ T5831] R10: dffffc0000000000 R11: fffffbfff1cfa218 R12: ffff88803539c2bc [ 59.495990][ T5831] R13: 00000000000003e8 R14: 1ffff11006a73857 R15: 0000000000002146 [ 59.503979][ T5831] FS: 000055556211b380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 59.512926][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.519527][ T5831] CR2: 00005585986236b8 CR3: 0000000030686000 CR4: 00000000003526f0 [ 59.527510][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.535482][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.543447][ T5831] Call Trace: [ 59.546720][ T5831] [ 59.549649][ T5831] ? __die_body+0x5f/0xb0 [ 59.553990][ T5831] ? die+0x9e/0xc0 [ 59.557699][ T5831] ? do_trap+0x15a/0x3a0 [ 59.561938][ T5831] ? gfs2_assert_warn_i+0x2df/0x2f0 [ 59.567134][ T5831] ? do_error_trap+0x1dc/0x2c0 [ 59.571896][ T5831] ? gfs2_assert_warn_i+0x2df/0x2f0 [ 59.577093][ T5831] ? __pfx_do_error_trap+0x10/0x10 [ 59.582202][ T5831] ? handle_invalid_op+0x34/0x40 [ 59.587131][ T5831] ? gfs2_assert_warn_i+0x2df/0x2f0 [ 59.592321][ T5831] ? exc_invalid_op+0x38/0x50 [ 59.596998][ T5831] ? asm_exc_invalid_op+0x1a/0x20 [ 59.602010][ T5831] ? gfs2_assert_warn_i+0x197/0x2f0 [ 59.607214][ T5831] ? gfs2_assert_warn_i+0x2de/0x2f0 [ 59.612418][ T5831] ? gfs2_assert_warn_i+0x2df/0x2f0 [ 59.617619][ T5831] ? gfs2_assert_warn_i+0x2de/0x2f0 [ 59.622819][ T5831] gfs2_qd_dispose+0x4af/0x5b0 [ 59.627579][ T5831] gfs2_quota_init+0xd7b/0x1440 [ 59.632425][ T5831] ? __pfx_gfs2_quota_init+0x10/0x10 [ 59.637720][ T5831] ? __pfx_gfs2_find_jhead+0x10/0x10 [ 59.643030][ T5831] ? inode_go_inval+0x25c/0x2c0 [ 59.647898][ T5831] gfs2_make_fs_rw+0x43f/0x5e0 [ 59.652671][ T5831] ? __pfx_gfs2_make_fs_rw+0x10/0x10 [ 59.657963][ T5831] gfs2_fill_super+0x22a1/0x24d0 [ 59.662905][ T5831] ? __pfx_gfs2_fill_super+0x10/0x10 [ 59.668216][ T5831] ? snprintf+0xda/0x120 [ 59.672458][ T5831] ? __pfx_lock_release+0x10/0x10 [ 59.677474][ T5831] ? do_raw_spin_lock+0x14f/0x370 [ 59.682493][ T5831] ? __pfx_snprintf+0x10/0x10 [ 59.687165][ T5831] ? init_locking+0xbd/0x210 [ 59.691751][ T5831] ? sb_set_blocksize+0x98/0xf0 [ 59.696594][ T5831] ? setup_bdev_super+0x4e6/0x5d0 [ 59.701609][ T5831] get_tree_bdev_flags+0x48c/0x5c0 [ 59.706715][ T5831] ? __pfx_gfs2_fill_super+0x10/0x10 [ 59.711995][ T5831] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 59.717621][ T5831] gfs2_get_tree+0x54/0x220 [ 59.722119][ T5831] vfs_get_tree+0x90/0x2b0 [ 59.726542][ T5831] do_new_mount+0x2be/0xb40 [ 59.731039][ T5831] ? __pfx_do_new_mount+0x10/0x10 [ 59.736075][ T5831] __se_sys_mount+0x2d6/0x3c0 [ 59.740748][ T5831] ? __pfx___se_sys_mount+0x10/0x10 [ 59.745938][ T5831] ? do_syscall_64+0x100/0x230 [ 59.750696][ T5831] ? __x64_sys_mount+0x20/0xc0 [ 59.755457][ T5831] do_syscall_64+0xf3/0x230 [ 59.759954][ T5831] ? clear_bhb_loop+0x35/0x90 [ 59.764630][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.770521][ T5831] RIP: 0033:0x7f843708d16a [ 59.774938][ T5831] 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 [ 59.794535][ T5831] RSP: 002b:00007fff3bf4a368 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 59.802940][ T5831] RAX: ffffffffffffffda RBX: 00007fff3bf4a380 RCX: 00007f843708d16a [ 59.810906][ T5831] RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007fff3bf4a380 [ 59.818867][ T5831] RBP: 0000000000000004 R08: 00007fff3bf4a3c0 R09: 000000000002116a [ 59.826828][ T5831] R10: 000000000300c888 R11: 0000000000000282 R12: 000000000300c888 [ 59.834788][ T5831] R13: 00007fff3bf4a3c0 R14: 0000000000000003 R15: 0000000001000000 [ 59.842776][ T5831] [ 59.845792][ T5831] Modules linked in: [ 59.849812][ T5831] ---[ end trace 0000000000000000 ]--- [ 59.855492][ T5831] RIP: 0010:gfs2_assert_warn_i+0x2df/0x2f0 [ 59.861323][ T5831] Code: fe 48 c7 c7 c0 c5 4d 8c 48 89 ee 48 8b 54 24 08 48 8b 4c 24 10 4c 8b 44 24 18 44 8b 4c 24 04 e8 37 37 17 fd e8 42 ba af fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 [ 59.881006][ T5831] RSP: 0018:ffffc90003f5f608 EFLAGS: 00010293 [ 59.887158][ T5831] RAX: ffffffff83efc07e RBX: 0000000000000004 RCX: ffff888030943c00 [ 59.895756][ T5831] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 59.903758][ T5831] RBP: ffff88803539c000 R08: ffffffff83efbf37 R09: fffffbfff1cfa218 [ 59.911718][ T5831] R10: dffffc0000000000 R11: fffffbfff1cfa218 R12: ffff88803539c2bc [ 59.919722][ T5831] R13: 00000000000003e8 R14: 1ffff11006a73857 R15: 0000000000002146 [ 59.927718][ T5831] FS: 000055556211b380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 59.936686][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.943280][ T5831] CR2: 00005585986236b8 CR3: 0000000030686000 CR4: 00000000003526f0 [ 59.951323][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.959386][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.967451][ T5831] Kernel panic - not syncing: Fatal exception [ 59.974729][ T5831] Kernel Offset: disabled [ 59.979050][ T5831] Rebooting in 86400 seconds..