sg_write: data in/out 524252/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.4 not setting count and/or reply_len properly
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7963 at lib/iov_iter.c:629 _copy_from_iter+0x2bf/0x1170
Modules linked in:
CPU: 1 PID: 7963 Comm: syz-executor.4 Not tainted 6.2.0-rc2-next-20230106 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:_copy_from_iter+0x2bf/0x1170
Code: 5d 41 5e 41 5f e9 45 3a 32 02 e8 7c 28 37 ff be 79 02 00 00 48 c7 c7 c0 d1 9e 84 e8 5b d4 5a ff e9 48 fe ff ff e8 61 28 37 ff <0f> 0b 45 31 f6 eb 87 e8 55 28 37 ff 31 ff 89 ee e8 1c 24 37 ff 40
RSP: 0018:ffff88803be975e8 EFLAGS: 00010212
RAX: 000000000000385e RBX: 0000000000000000 RCX: ffffc900009f4000
RDX: 0000000000040000 RSI: ffffffff82124a1f RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803be97818
R13: ffffea0000e49200 R14: 0000000000001000 R15: ffff88803be97818
FS: 00007f1ade9d2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ad8b31000 CR3: 0000000044aee000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
copy_page_from_iter+0xe3/0x180
blk_rq_map_user_iov+0xb0c/0x1650
blk_rq_map_user_io+0x1ee/0x220
sg_common_write.constprop.0+0xd84/0x15e0
sg_write.part.0+0x698/0xa90
sg_write+0x8d/0xe0
vfs_write+0x2cf/0xdd0
ksys_write+0x12b/0x260
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f1ae147db19
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:00007f1ade9d2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f1ae1591020 RCX: 00007f1ae147db19
RDX: 0000000000000125 RSI: 00000000200003c0 RDI: 0000000000000007
RBP: 00007f1ae14d7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd6cc4fd9f R14: 00007f1ade9d2300 R15: 0000000000022000
irq event stamp: 4691
hardirqs last enabled at (4709): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20
hardirqs last disabled at (4758): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1066): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (993): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000.
syz-executor.3 calls setitimer() with new_value NULL pointer. Misfeature support will be removed
process 'syz-executor.7' launched '/dev/fd/-1/./file1' with NULL argv: empty string added
sg_write: data in/out 524252/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.4 not setting count and/or reply_len properly
capability: warning: `syz-executor.6' uses 32-bit capabilities (legacy support in use)
sg_write: data in/out 524252/251 bytes for SCSI command 0x0-- guessing data in;
program syz-executor.4 not setting count and/or reply_len properly
loop4: detected capacity change from 0 to 40
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
buffer_io_error: 46 callbacks suppressed
Buffer I/O error on dev loop4, logical block 10, lost async page write
syz-executor.4: attempt to access beyond end of device
loop4: rw=2049, sector=40, nr_sectors = 4 limit=40
Buffer I/O error on dev loop4, logical block 10, lost async page write
9pnet_fd: Insufficient options for proto=fd
9pnet_fd: Insufficient options for proto=fd
loop4: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
No source specified
No source specified
loop3: detected capacity change from 0 to 264192
loop3: detected capacity change from 0 to 264192
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
loop4: detected capacity change from 0 to 40
loop6: detected capacity change from 0 to 40
loop3: detected capacity change from 0 to 264192