WARNING: CPU: 0 PID: 21388 at fs/overlayfs/file.c:81 ovl_change_flags fs/overlayfs/file.c:81 [inline]
WARNING: CPU: 0 PID: 21388 at fs/overlayfs/file.c:81 ovl_real_fdget_meta+0x4aa/0x520 fs/overlayfs/file.c:132
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 21388 Comm: syz-executor.5 Not tainted 5.9.0-rc3-syzkaller #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+0x1d6/0x29e lib/dump_stack.c:118
 panic+0x2c0/0x800 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:ovl_change_flags fs/overlayfs/file.c:81 [inline]
RIP: 0010:ovl_real_fdget_meta+0x4aa/0x520 fs/overlayfs/file.c:132
Code: ff df e9 c5 fc ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d6 fc ff ff 4c 89 ef e8 40 70 27 ff e9 c9 fc ff ff e8 26 98 e7 fe <0f> 0b bd fb ff ff ff e9 e1 fc ff ff 48 8b 0c 24 80 e1 07 80 c1 03
RSP: 0018:ffffc900159d7b70 EFLAGS: 00010283
RAX: ffffffff828d63fa RBX: 0000000004042000 RCX: 0000000000040000
RDX: ffffc90013107000 RSI: 00000000000285c1 RDI: 00000000000285c2
RBP: 0000000000000000 R08: ffffffff828d6160 R09: fffffbfff167d8c1
R10: fffffbfff167d8c1 R11: 0000000000000000 R12: 000000000002a002
R13: ffff88809ea1ad40 R14: 0000000000002000 R15: 1ffff11013d435a8
 ovl_real_fdget fs/overlayfs/file.c:139 [inline]
 ovl_splice_write+0x43/0x410 fs/overlayfs/file.c:417
 do_splice_from fs/splice.c:846 [inline]
 direct_splice_actor+0xfa/0x2a0 fs/splice.c:1016
 splice_direct_to_actor+0x4a2/0xb60 fs/splice.c:971
 do_splice_direct+0x201/0x340 fs/splice.c:1059
 do_sendfile+0x86d/0x1210 fs/read_write.c:1540
 __do_sys_sendfile64 fs/read_write.c:1595 [inline]
 __se_sys_sendfile64 fs/read_write.c:1587 [inline]
 __x64_sys_sendfile64+0xed/0x1a0 fs/read_write.c:1587
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5b9
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1c6069ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000027980 RCX: 000000000045d5b9
RDX: 0000000020000200 RSI: 0000000000000003 RDI: 0000000000000003
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000a198 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffe14df793f R14: 00007f1c6069f9c0 R15: 000000000118cf4c
Kernel Offset: disabled
Rebooting in 86400 seconds..