------------[ cut here ]------------ WARNING: CPU: 1 PID: 7644 at lib/iov_iter.c:1162 iov_iter_pipe+0x20c/0x320 lib/iov_iter.c:1161 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7644 Comm: syz-executor.3 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x113/0x167 lib/dump_stack.c:113 panic+0x22a/0x4e3 kernel/panic.c:221 __warn.cold.11+0x25/0x30 kernel/panic.c:582 report_bug+0x1b0/0x270 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:iov_iter_pipe+0x20c/0x320 lib/iov_iter.c:1162 Code: ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 37 44 89 63 24 48 83 c4 10 5b 41 5c 41 5d 41 5e 5d c3 0f 0b <0f> 0b e9 6b fe ff ff 4c 89 ef 48 89 4d d0 48 89 55 d8 e8 ed 71 93 RSP: 0018:ffff88807f68f9a8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807f68fa30 RCX: 0000000000000000 RDX: ffff8880a1442800 RSI: 1ffff1101428851a RDI: ffff88807f68fa30 RBP: ffff88807f68f9d8 R08: 0000000000000000 R09: dffffc0000000000 R10: ffff8880a4be9598 R11: ffffffff891bbd07 R12: 0000000000000010 R13: ffff8880a14428c8 R14: ffff8880a14428d0 R15: ffff8880a4be95f8 generic_file_splice_read+0x95/0x7b0 fs/splice.c:303 do_splice_to+0xe3/0x120 fs/splice.c:877 splice_direct_to_actor+0x295/0x870 fs/splice.c:954 do_splice_direct+0x14c/0x270 fs/splice.c:1063 do_sendfile+0x481/0xd10 fs/read_write.c:1464 __do_sys_sendfile64 fs/read_write.c:1525 [inline] __se_sys_sendfile64 fs/read_write.c:1511 [inline] __x64_sys_sendfile64+0x198/0x1e0 fs/read_write.c:1511 do_syscall_64+0xca/0x5d0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a219 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4fd7e0fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a219 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007f4fd7e106d4 R13: 00000000004c7f94 R14: 00000000004de3b0 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..