gfs2: fsid=syz:syz.0: jid=0, already locked for use gfs2: fsid=syz:syz.0: jid=0: Looking at journal... gfs2: fsid=syz:syz.0: jid=0: Done gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ kernel BUG at fs/iomap.c:277! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8129 Comm: syz-executor287 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:iomap_read_inline_data.isra.0+0x2b4/0x320 fs/iomap.c:277 Code: e8 f1 fb a4 ff e8 96 b3 42 ff eb 99 e8 e5 fb a4 ff 48 8b 1c 24 48 83 eb 01 e9 b8 fd ff ff e8 d3 fb a4 ff 0f 0b e8 cc fb a4 ff <0f> 0b e8 25 d8 da ff e9 b3 fe ff ff e8 1b d8 da ff e9 40 ff ff ff RSP: 0018:ffff888091c5f060 EFLAGS: 00010293 RAX: ffff8880b164e000 RBX: 0000000000000f18 RCX: ffffffff81bd881a RDX: 0000000000000000 RSI: ffffffff81bd89a4 RDI: 0000000000000006 RBP: ffffea0002236f40 R08: ffff888091c5f1e8 R09: 00000040000000c0 R10: 0000000000000006 R11: 0000000000000000 R12: 00000040000000c0 R13: ffff888091c5f1e8 R14: ffffea0002236f48 R15: ffff888091c5f218 FS: 0000555556976300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558604d56848 CR3: 00000000aa812000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_readpage_actor+0xa95/0xdb0 fs/iomap.c:320 iomap_apply+0x18b/0x290 fs/iomap.c:87 iomap_readpage+0x131/0x3f0 fs/iomap.c:393 __gfs2_readpage+0x23e/0x2c0 fs/gfs2/aops.c:516 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828 gfs2_internal_read+0xed/0x4d0 fs/gfs2/aops.c:590 read_rindex_entry+0x1ea/0x13d0 fs/gfs2/rgrp.c:910 gfs2_ri_update+0x73/0x580 fs/gfs2/rgrp.c:1006 gfs2_rindex_update+0x3ba/0x430 fs/gfs2/rgrp.c:1056 init_inodes+0x1061/0x1cf0 fs/gfs2/ops_fstype.c:819 fill_super+0x18a6/0x2550 fs/gfs2/ops_fstype.c:1153 gfs2_mount+0x4c0/0x5a0 fs/gfs2/ops_fstype.c:1316 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1a2a9a9dea Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffec359db58 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1a2a9a9dea RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007ffec359db60 RBP: 00007ffec359db60 R08: 00007ffec359dba0 R09: 0000000000012511 R10: 0000000000000819 R11: 0000000000000282 R12: 0000000000000004 R13: 00005555569762c0 R14: 00007ffec359dba0 R15: 0000000000000000 Modules linked in: ---[ end trace 89cd7189b8b97422 ]--- RIP: 0010:iomap_read_inline_data.isra.0+0x2b4/0x320 fs/iomap.c:277 Code: e8 f1 fb a4 ff e8 96 b3 42 ff eb 99 e8 e5 fb a4 ff 48 8b 1c 24 48 83 eb 01 e9 b8 fd ff ff e8 d3 fb a4 ff 0f 0b e8 cc fb a4 ff <0f> 0b e8 25 d8 da ff e9 b3 fe ff ff e8 1b d8 da ff e9 40 ff ff ff RSP: 0018:ffff888091c5f060 EFLAGS: 00010293 RAX: ffff8880b164e000 RBX: 0000000000000f18 RCX: ffffffff81bd881a RDX: 0000000000000000 RSI: ffffffff81bd89a4 RDI: 0000000000000006 RBP: ffffea0002236f40 R08: ffff888091c5f1e8 R09: 00000040000000c0 R10: 0000000000000006 R11: 0000000000000000 R12: 00000040000000c0 R13: ffff888091c5f1e8 R14: ffffea0002236f48 R15: ffff888091c5f218 FS: 0000555556976300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9e4003c0d8 CR3: 00000000aa812000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400