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 loop0: detected capacity change from 32768 to 64 capability: warning: `syz.0.0' uses 32-bit capabilities (legacy support in use) gfs2: fsid=syz:syz.0: quota exceeded for group 0 syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=18822, nr_sectors = 10 limit=64 loop0: writeback error on inode 9410, offset 0, sector 18822 syz.0.0: attempt to access beyond end of device loop0: rw=1, sector=2972, nr_sectors = 22 limit=64 gfs2: fsid=syz:syz.0: Error -5 writing to journal, jid=0 ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:331! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5328 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_put+0x18a/0x190 fs/gfs2/quota.c:331 Code: e7 e8 1a e1 24 fe e9 ee fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 7c 83 48 89 ef e8 f1 e1 24 fe e9 76 ff ff ff e8 47 a2 bd fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d2a73a8 EFLAGS: 00010287 RAX: ffffffff84027159 RBX: ffff8880510c9000 RCX: 0000000000100000 RDX: ffffc9000dd52000 RSI: 00000000000031b1 RDI: 00000000000031b2 RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001a54e5c R12: ffff8880510c9070 R13: dffffc0000000000 R14: ffff8880510c9030 R15: 1ffff1100a21920e FS: 00007f76ae5f36c0(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf02b20000 CR3: 0000000042254000 CR4: 0000000000352ef0 Call Trace: gfs2_quota_unhold+0x1c9/0x690 fs/gfs2/quota.c:653 gfs2_quota_unlock+0x7bd/0x8a0 fs/gfs2/quota.c:1191 ea_alloc_skeleton+0x441/0x540 fs/gfs2/xattr.c:-1 ea_init+0x17c/0x1f0 fs/gfs2/xattr.c:821 __gfs2_xattr_set+0x498/0xae0 fs/gfs2/xattr.c:1199 gfs2_xattr_set+0x304/0x3e0 fs/gfs2/xattr.c:1258 __vfs_setxattr+0x43c/0x480 fs/xattr.c:200 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234 vfs_setxattr+0x16b/0x2f0 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x274/0x600 fs/xattr.c:665 path_setxattrat+0x364/0x3a0 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743 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: 0033:0x7f76ad78efc9 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:00007f76ae5f3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f76ad9e5fa0 RCX: 00007f76ad78efc9 RDX: 0000000000000000 RSI: 0000200000000340 RDI: 00002000000002c0 RBP: 00007f76ad811f91 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f76ad9e6038 R14: 00007f76ad9e5fa0 R15: 00007ffdff382fe8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:qd_put+0x18a/0x190 fs/gfs2/quota.c:331 Code: e7 e8 1a e1 24 fe e9 ee fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 7c 83 48 89 ef e8 f1 e1 24 fe e9 76 ff ff ff e8 47 a2 bd fd 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d2a73a8 EFLAGS: 00010287 RAX: ffffffff84027159 RBX: ffff8880510c9000 RCX: 0000000000100000 RDX: ffffc9000dd52000 RSI: 00000000000031b1 RDI: 00000000000031b2 RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001a54e5c R12: ffff8880510c9070 R13: dffffc0000000000 R14: ffff8880510c9030 R15: 1ffff1100a21920e FS: 00007f76ae5f36c0(0000) GS:ffff88808d733000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf02b20000 CR3: 0000000042254000 CR4: 0000000000352ef0