------------[ cut here ]------------ WARNING: CPU: 0 PID: 14672 at lib/iov_iter.c:364 _copy_from_iter+0x2b2/0x1140 Modules linked in: CPU: 0 PID: 14672 Comm: syz-executor.4 Not tainted 6.3.0-rc3-next-20230321 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_copy_from_iter+0x2b2/0x1140 Code: 5d 41 5e 41 5f e9 d2 26 33 02 e8 f9 8a 36 ff be 70 01 00 00 48 c7 c7 60 bf 9e 84 e8 08 7a 5a ff e9 51 fe ff ff e8 de 8a 36 ff <0f> 0b 45 31 f6 eb 87 e8 d2 8a 36 ff 31 ff 89 ee e8 09 86 36 ff 40 RSP: 0018:ffff8880449076b0 EFLAGS: 00010212 RAX: 00000000000001eb RBX: 0000000000000000 RCX: ffffc9000580f000 RDX: 0000000000040000 RSI: ffffffff8214ef12 RDI: 0000000000000001 RBP: 000000000000006f R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880449078e0 R14: 000000000000006f R15: ffff8880449078e0 FS: 00007f60d3591700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33823000 CR3: 000000004500a000 CR4: 0000000000350ef0 Call Trace: copy_page_from_iter+0x251/0x430 blk_rq_map_user_iov+0xb41/0x16c0 blk_rq_map_user_io+0x1d1/0x200 sg_common_write.constprop.0+0xd8d/0x15f0 sg_new_write.isra.0+0x523/0x770 sg_ioctl+0x9f2/0x26a0 __x64_sys_ioctl+0x19e/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f60d601bb19 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:00007f60d3591188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f60d612ef60 RCX: 00007f60d601bb19 RDX: 0000000020000240 RSI: 0000000000002285 RDI: 0000000000000003 RBP: 00007f60d6075f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe8e63404f R14: 00007f60d3591300 R15: 0000000000022000 irq event stamp: 1363 hardirqs last enabled at (1373): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1384): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (880): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (871): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]---