gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ WARNING: CPU: 3 PID: 8098 at fs/iomap/iter.c:16 iomap_iter_advance fs/iomap/iter.c:16 [inline] WARNING: CPU: 3 PID: 8098 at fs/iomap/iter.c:16 iomap_iter+0xe6b/0x11b0 fs/iomap/iter.c:70 Modules linked in: CPU: 3 PID: 8098 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:iomap_iter_advance fs/iomap/iter.c:16 [inline] RIP: 0010:iomap_iter+0xe6b/0x11b0 fs/iomap/iter.c:70 Code: ff 48 c7 c2 e0 33 9c 89 be 95 00 00 00 48 c7 c7 40 34 9c 89 c6 05 fd 5c 6f 0b 01 e8 fe f2 0a 07 e9 f1 fd ff ff e8 55 e3 8a ff <0f> 0b 41 bd fb ff ff ff e9 04 f4 ff ff e8 43 e3 8a ff 0f 0b e9 0c RSP: 0018:ffffc900067f7278 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffffc900067f7338 RCX: ffffc90002af1000 RDX: 0000000000040000 RSI: ffffffff81ece31b RDI: 0000000000000003 RBP: ffffffff89d66780 R08: 0000000100000f40 R09: 0000000000000000 R10: ffffffff81ecdcf3 R11: 0000000000000000 R12: ffffc900067f7340 R13: 0000000000001000 R14: 0000000100000f40 R15: ffffc900067f7350 FS: 0000000000000000(0000) GS:ffff88802cd00000(0063) knlGS:00000000f44a8b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f705f110 CR3: 0000000045c1b000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_readpage+0x1b8/0x660 fs/iomap/buffered-io.c:332 __gfs2_readpage+0x550/0x7a0 fs/gfs2/aops.c:477 do_read_cache_page+0x547/0x11a0 mm/filemap.c:3464 gfs2_internal_read+0xee/0x4d0 fs/gfs2/aops.c:526 read_rindex_entry+0x1ae/0x12f0 fs/gfs2/rgrp.c:905 gfs2_ri_update+0x73/0x570 fs/gfs2/rgrp.c:999 gfs2_rindex_update+0x41c/0x4a0 fs/gfs2/rgrp.c:1049 init_inodes+0x1ed6/0x2720 fs/gfs2/ops_fstype.c:914 gfs2_fill_super+0x1b49/0x28a0 fs/gfs2/ops_fstype.c:1244 get_tree_bdev+0x440/0x760 fs/super.c:1295 gfs2_get_tree+0x4a/0x270 fs/gfs2/ops_fstype.c:1327 vfs_get_tree+0x89/0x2f0 fs/super.c:1500 do_new_mount fs/namespace.c:2988 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount fs/namespace.c:3516 [inline] __ia32_sys_mount+0x27e/0x300 fs/namespace.c:3516 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf6eae549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f44a8440 EFLAGS: 00000296 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f44a84b0 RCX: 0000000020000100 RDX: 0000000020000000 RSI: 0000000000000000 RDI: 00000000f44a84f0 RBP: 00000000f44a84f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi