loop3: 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.5 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3999 at lib/iov_iter.c:376 _copy_from_iter+0x2bf/0x1200
Modules linked in:
CPU: 1 PID: 3999 Comm: syz-executor.5 Not tainted 6.3.0-rc6-next-20230413 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1200
Code: 5d 41 5e 41 5f e9 c5 94 35 02 e8 dc 87 36 ff be 7c 01 00 00 48 c7 c7 40 cd 9e 84 e8 cb 93 5a ff e9 48 fe ff ff e8 c1 87 36 ff <0f> 0b 45 31 f6 eb 87 e8 b5 87 36 ff 31 ff 89 ee e8 ec 82 36 ff 40
RSP: 0018:ffff888043c27608 EFLAGS: 00010216
RAX: 00000000000033f6 RBX: 0000000000000000 RCX: ffffc90003a0c000
RDX: 0000000000040000 RSI: ffffffff82153edf RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888043c27838
R13: ffffea00010f6a00 R14: 0000000000001000 R15: ffff888043c27838
FS: 00007f2757383700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d306e2e418 CR3: 0000000016326000 CR4: 0000000000350ee0
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+0x2d8/0xdc0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f2759e0db19
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:00007f2757383188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2759f20f60 RCX: 00007f2759e0db19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007f2759e67f6d R08: 0000000000000000 R09: 0000000000000000
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe16bdd90f R14: 00007f2757383300 R15: 0000000000022000
irq event stamp: 1099
hardirqs last enabled at (1109): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1120): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (412): [] __irq_exit_rcu+0xcc/0x110
softirqs last disabled at (367): [] __irq_exit_rcu+0xcc/0x110
---[ end trace 0000000000000000 ]---
warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
syz-executor.3: attempt to access beyond end of device
loop3: rw=2049, sector=40, nr_sectors = 4 limit=40
buffer_io_error: 54 callbacks suppressed
Buffer I/O error on dev loop3, logical block 10, lost async page write
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
lo: left promiscuous mode
lo: left allmulticast mode
lo: entered promiscuous mode
lo: entered allmulticast mode
sg_write: data in/out 917468/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.5 not setting count and/or reply_len properly
loop4: detected capacity change from 0 to 2048
warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=61 sclass=netlink_route_socket pid=4007 comm=syz-executor.5
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
lo: entered promiscuous mode
lo: entered allmulticast mode
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.