sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly 9pnet_fd: p9_fd_create_tcp (11087): problem connecting socket to 127.0.0.1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 11089 at lib/iov_iter.c:385 _copy_from_iter+0x2b2/0x1330 Modules linked in: CPU: 1 PID: 11089 Comm: syz-executor.6 Not tainted 6.3.0-rc7-next-20230418 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2b2/0x1330 Code: 5d 41 5e 41 5f e9 82 8f 35 02 e8 f9 51 36 ff be 85 01 00 00 48 c7 c7 60 cf 9e 84 e8 88 5e 5a ff e9 51 fe ff ff e8 de 51 36 ff <0f> 0b 45 31 f6 eb 87 e8 d2 51 36 ff 31 ff 89 ee e8 09 4d 36 ff 40 RSP: 0018:ffff888040947608 EFLAGS: 00010212 RAX: 00000000000040d7 RBX: 0000000000000000 RCX: ffffc90005df8000 RDX: 0000000000040000 RSI: ffffffff82158322 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000001000 R13: ffff888040947838 R14: 0000000000001000 R15: ffff888040947838 FS: 00007fe9904cd700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1e15c2718 CR3: 000000001a5a0000 CR4: 0000000000350ee0 DR0: 0000000020000100 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: copy_page_from_iter+0xe3/0x180 blk_rq_map_user_iov+0xb39/0x16c0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_write.part.0+0x698/0xac0 sg_write+0x8d/0xe0 vfs_write+0x2d8/0xdd0 ksys_write+0x12b/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fe992f57b19 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:00007fe9904cd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe99306af60 RCX: 00007fe992f57b19 RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007fe992fb1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7ec64b4f R14: 00007fe9904cd300 R15: 0000000000022000 irq event stamp: 4799 hardirqs last enabled at (4851): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (4904): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4442): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4345): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=11098 comm=syz-executor.6 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly loop0: detected capacity change from 0 to 256 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly 9pnet_fd: p9_fd_create_tcp (11111): problem connecting socket to 127.0.0.1 FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=11114 comm=syz-executor.6 FAT-fs (loop0): Directory bread(block 64) failed FAT-fs (loop0): Directory bread(block 65) failed FAT-fs (loop0): Directory bread(block 66) failed FAT-fs (loop0): Directory bread(block 67) failed FAT-fs (loop0): Directory bread(block 68) failed FAT-fs (loop0): Directory bread(block 69) failed FAT-fs (loop0): Directory bread(block 70) failed FAT-fs (loop0): Directory bread(block 71) failed FAT-fs (loop0): Directory bread(block 72) failed FAT-fs (loop0): Directory bread(block 73) failed 9pnet_fd: p9_fd_create_tcp (11125): problem connecting socket to 127.0.0.1 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=11144 comm=syz-executor.6 loop7: detected capacity change from 0 to 40 sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in; program syz-executor.6 not setting count and/or reply_len properly syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 buffer_io_error: 16 callbacks suppressed Buffer I/O error on dev loop7, logical block 10, lost async page write SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=11172 comm=syz-executor.6 IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 blk_print_req_error: 16 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 6 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 random: crng reseeded on system resumption random: crng reseeded on system resumption ieee802154 phy0 wpan0: encryption failed: -22 EXT4-fs: journaled quota format not specified EXT4-fs: journaled quota format not specified loop3: detected capacity change from 0 to 40 syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 loop3: detected capacity change from 0 to 40 EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 25 (only 16 groups) syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 loop3: detected capacity change from 0 to 40 netlink: 'syz-executor.0': attribute type 4 has an invalid length. syz-executor.3: attempt to access beyond end of device loop3: rw=2049, sector=40, nr_sectors = 4 limit=40 buffer_io_error: 9 callbacks suppressed Buffer I/O error on dev loop3, logical block 10, lost async page write : renamed from lo (while UP) loop3: detected capacity change from 0 to 40 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. 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 random: crng reseeded on system resumption random: crng reseeded on system resumption loop6: detected capacity change from 0 to 128 Bluetooth: hci6: command 0x0409 tx timeout UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 netlink: 3752 bytes leftover after parsing attributes in process `syz-executor.7'. UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 audit: type=1326 audit(1681869937.847:36): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=11694 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f43ee0e6b19 code=0x0