loop0: detected capacity change from 0 to 16 erofs (device loop0): mounted with root inode @ nid 36. process 'syz.0.17' launched './file2' with NULL argv: empty string added ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5476 at fs/dax.c:1756 dax_iomap_rw+0xe34/0xed0 fs/dax.c:1756 Modules linked in: CPU: 0 UID: 0 PID: 5476 Comm: syz.0.17 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:dax_iomap_rw+0xe34/0xed0 fs/dax.c:1756 Code: ff ff 49 bd 00 00 00 00 00 fc ff df eb 84 e8 33 d7 6f ff 90 0f 0b 90 80 8c 24 c4 01 00 00 01 e9 b9 f4 ff ff e8 1d d7 6f ff 90 <0f> 0b 90 e9 ab f4 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 56 f3 RSP: 0018:ffffc90002837840 EFLAGS: 00010293 RAX: ffffffff824eae63 RBX: ffffc90002837c00 RCX: ffff888035fe0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002837b30 R08: ffffc90002837a9f R09: 0000000000000000 R10: ffffc900028379f8 R11: fffff52000506f54 R12: 1ffff92000506f80 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 000055557a344500(0000) GS:ffff88808d967000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30563fff CR3: 0000000057efb000 CR4: 0000000000352ef0 Call Trace: __kernel_read+0x4cc/0x960 fs/read_write.c:530 prepare_binprm fs/exec.c:1609 [inline] search_binary_handler fs/exec.c:1656 [inline] exec_binprm fs/exec.c:1702 [inline] bprm_execve+0x8ce/0x1450 fs/exec.c:1754 do_execveat_common+0x510/0x6a0 fs/exec.c:1860 do_execveat fs/exec.c:1945 [inline] __do_sys_execveat fs/exec.c:2019 [inline] __se_sys_execveat fs/exec.c:2013 [inline] __x64_sys_execveat+0xc4/0xe0 fs/exec.c:2013 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3df158eec9 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:00007fff86629a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 00007f3df17e5fa0 RCX: 00007f3df158eec9 RDX: 0000000000000000 RSI: 0000200000000000 RDI: ffffffffffffff9c RBP: 00007f3df1611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3df17e5fa0 R14: 00007f3df17e5fa0 R15: 0000000000000005