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 1 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount r8152-cfgselector 5-1: USB disconnect, device number 2 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5323 at fs/iomap/buffered-io.c:1373 iomap_zero_iter+0x5c9/0x780 fs/iomap/buffered-io.c:1373 Modules linked in: CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.13.0-rc6-syzkaller-00059-g643e2e259c2b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:iomap_zero_iter+0x5c9/0x780 fs/iomap/buffered-io.c:1373 Code: 00 00 00 00 fc ff df 0f 8e b1 00 00 00 48 01 5c 24 08 e8 0a 39 66 ff 48 8d 9c 24 80 00 00 00 e9 f5 fb ff ff e8 f8 38 66 ff 90 <0f> 0b 90 e9 fe fc ff ff 48 8b 4c 24 18 80 e1 07 fe c1 38 c1 0f 8c RSP: 0018:ffffc900033ff3c0 EFLAGS: 00010287 RAX: ffffffff82394b28 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000ee6a000 RSI: 0000000000000535 RDI: 0000000000000536 RBP: ffffc900033ff4b0 R08: ffffffff82394821 R09: 1ffffd400020d740 R10: dffffc0000000000 R11: fffff9400020d741 R12: ffffc900033ff580 R13: dffffc0000000000 R14: ffffea000106ba00 R15: 0000000000008000 FS: 00007fe9323116c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055dec4fa7e48 CR3: 0000000036e22000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_zero_range+0x69b/0x970 fs/iomap/buffered-io.c:1456 gfs2_block_zero_range fs/gfs2/bmap.c:1303 [inline] __gfs2_punch_hole+0x311/0xb30 fs/gfs2/bmap.c:2420 gfs2_fallocate+0x3a1/0x490 fs/gfs2/file.c:1399 vfs_fallocate+0x569/0x6e0 fs/open.c:327 do_vfs_ioctl+0x258c/0x2e40 fs/ioctl.c:885 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x80/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe931585d29 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:00007fe932311038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe931775fa0 RCX: 00007fe931585d29 RDX: 0000000020000000 RSI: 0000000040305829 RDI: 0000000000000008 RBP: 00007fe931601b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe931775fa0 R15: 00007fffda65ab88