capability: warning: `syz.0.0' uses deprecated v2 capabilities in a way that may be insecure loop0: detected capacity change from 0 to 32768 gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" gfs2: fsid=syz:syz: Now mounting FS (format 1801)... gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: found 1 quota changes gfs2: fsid=syz:syz.0: fatal assertion failed ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:320! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline] RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705 Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 0d 6d 25 fe 48 8b 44 24 10 48 8b 38 e8 a0 04 29 fd 90 <0f> 0b e8 b8 44 be fd 48 8b 7c 24 10 e8 8e 04 29 fd 90 0f 0b 66 66 RSP: 0018:ffffc9000d397328 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff110086eca0e RCX: 4caed98bc5560700 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffc9000d397047 R09: 1ffff92001a72e08 R10: dffffc0000000000 R11: fffff52001a72e09 R12: ffff888043765000 R13: ffff888043765070 R14: ffff888043765090 R15: 0000000000000000 FS: 00007fb04aec36c0(0000) GS:ffff88808d306000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd0ff22ec0 CR3: 0000000011515000 CR4: 0000000000352ef0 Call Trace: gfs2_quota_change+0x394/0x800 fs/gfs2/quota.c:1304 gfs2_alloc_blocks+0x18bc/0x2080 fs/gfs2/rgrp.c:2494 alloc_dinode+0x258/0x550 fs/gfs2/inode.c:422 gfs2_create_inode+0xbbc/0x1560 fs/gfs2/inode.c:807 gfs2_atomic_open+0x116/0x200 fs/gfs2/inode.c:1387 atomic_open fs/namei.c:3656 [inline] lookup_open fs/namei.c:3767 [inline] open_last_lookups fs/namei.c:3895 [inline] path_openat+0xf63/0x3830 fs/namei.c:4131 do_filp_open+0x1fa/0x410 fs/namei.c:4161 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1463 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb049f8eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb04aec3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb04a1e5fa0 RCX: 00007fb049f8eec9 RDX: 0000000000105042 RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007fb04a011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb04a1e6038 R14: 00007fb04a1e5fa0 R15: 00007ffd0ff238a8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline] RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705 Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 0d 6d 25 fe 48 8b 44 24 10 48 8b 38 e8 a0 04 29 fd 90 <0f> 0b e8 b8 44 be fd 48 8b 7c 24 10 e8 8e 04 29 fd 90 0f 0b 66 66 RSP: 0018:ffffc9000d397328 EFLAGS: 00010246 RAX: 000000000000002c RBX: 1ffff110086eca0e RCX: 4caed98bc5560700 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffc9000d397047 R09: 1ffff92001a72e08 R10: dffffc0000000000 R11: fffff52001a72e09 R12: ffff888043765000 R13: ffff888043765070 R14: ffff888043765090 R15: 0000000000000000 FS: 00007fb04aec36c0(0000) GS:ffff88808d306000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd0ff22ec0 CR3: 0000000011515000 CR4: 0000000000352ef0