------------[ cut here ]------------ WARNING: CPU: 0 PID: 5738 at mm/gup.c:2121 is_valid_gup_args+0x1dc/0x230 Modules linked in: CPU: 0 PID: 5738 Comm: syz-executor.4 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:ffff888042c97508 EFLAGS: 00010212 RAX: 0000000000003805 RBX: 0000000000040000 RCX: ffffc90008813000 RDX: 0000000000040000 RSI: ffffffff816e127c RDI: 0000000000000005 RBP: ffff888042c97568 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000040000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000040000 R15: 0000000000040000 FS: 00007f40de7c2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f40e129a9f0 CR3: 00000000196ac000 CR4: 0000000000350ef0 Call Trace: 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: 0033:0x7f40e124cb19 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:00007f40de7c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f40e135ff60 RCX: 00007f40e124cb19 RDX: 0000000000140000 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 00007f40e12a6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe249cf88f R14: 00007f40de7c2300 R15: 0000000000022000 irq event stamp: 1355 hardirqs last enabled at (1365): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1376): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1612): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (1625): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- kworker/u4:11: attempt to access beyond end of device loop7: rw=1, sector=124, nr_sectors = 4 limit=40 buffer_io_error: 214 callbacks suppressed Buffer I/O error on dev loop7, logical block 31, lost async page write loop7: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write loop7: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 loop2: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write syz-executor.2: attempt to access beyond end of device loop2: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop2, logical block 10, lost async page write syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop3, logical block 10, lost async page write loop2: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 40 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write syz-executor.0: attempt to access beyond end of device loop0: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop0, logical block 10, lost async page write syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop2: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 40 bio_check_eod: 6 callbacks suppressed syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 buffer_io_error: 6 callbacks suppressed Buffer I/O error on dev loop3, logical block 10, lost async page write loop5: detected capacity change from 0 to 40 loop5: detected capacity change from 0 to 40 syz-executor.5: attempt to access beyond end of device loop5: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop5, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 loop5: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 nfs4: Unknown parameter '/dev/net/tun' syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write syz-executor.5: attempt to access beyond end of device loop5: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop5, logical block 10, lost async page write Bluetooth: hci1: unexpected event 0x2f length: 509 > 260 Bluetooth: hci1: unexpected event 0x2f length: 509 > 260 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= Bluetooth: hci1: unexpected event 0x2f length: 509 > 260 Bluetooth: hci1: unexpected event 0x2f length: 509 > 260