------------[ cut here ]------------ WARNING: CPU: 1 PID: 4164 at mm/gup.c:2121 is_valid_gup_args+0x1dc/0x230 Modules linked in: CPU: 1 PID: 4164 Comm: syz-executor.6 Not tainted 6.2.0-rc7-next-20230207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:is_valid_gup_args+0x1dc/0x230 Code: dd ff 48 83 3c 24 00 0f 85 76 ff ff ff e8 5c 50 dd ff 0f 0b 45 31 e4 eb c9 e8 50 50 dd ff 0f 0b 45 31 e4 eb bd e8 44 50 dd ff <0f> 0b 45 31 e4 eb b1 e8 38 50 dd ff 0f 0b 45 31 e4 eb a5 e8 2c 50 RSP: 0018:ffff88801a02f508 EFLAGS: 00010212 RAX: 0000000000004484 RBX: 0000000000040000 RCX: ffffc90003feb000 RDX: 0000000000040000 RSI: ffffffff816e127c RDI: 0000000000000005 RBP: ffff88801a02f568 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000040000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000040000 FS: 00007f6431bd2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64346aab50 CR3: 000000000dc14000 CR4: 0000000000350ee0 Call Trace: <TASK> pin_user_pages_fast+0x83/0x100 iov_iter_extract_pages+0x2b9/0x1e90 bio_iov_iter_get_pages+0x341/0x13c0 iomap_dio_bio_iter+0x78e/0x1350 __iomap_dio_rw+0xe22/0x1ce0 iomap_dio_rw+0x40/0xa0 ext4_file_write_iter+0xb5d/0x1930 vfs_write+0x9b4/0xdc0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f643465cb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6431bd2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f643476ff60 RCX: 00007f643465cb19 RDX: 0000000000140000 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007f64346b6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffffb6f7c5f R14: 00007f6431bd2300 R15: 0000000000022000 </TASK> irq event stamp: 1939 hardirqs last enabled at (1951): [<ffffffff812f92f8>] __up_console_sem+0x78/0x80 hardirqs last disabled at (1962): [<ffffffff812f92dd>] __up_console_sem+0x5d/0x80 softirqs last enabled at (1388): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1383): [<ffffffff8118cdec>] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]---