------------[ cut here ]------------ WARNING: CPU: 1 PID: 7076 at fs/overlayfs/file.c:66 ovl_change_flags fs/overlayfs/file.c:66 [inline] WARNING: CPU: 1 PID: 7076 at fs/overlayfs/file.c:66 ovl_real_fdget_meta+0x49c/0x530 fs/overlayfs/file.c:117 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7076 Comm: syz-executor943 Not tainted 5.7.0-rc1-next-20200415-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:ovl_change_flags fs/overlayfs/file.c:66 [inline] RIP: 0010:ovl_real_fdget_meta+0x49c/0x530 fs/overlayfs/file.c:117 Code: ff 4c 89 ff e8 15 b8 2d ff e9 ff fc ff ff e8 0b b8 2d ff e9 c5 fc ff ff 4c 89 f7 e8 6e b8 2d ff e9 5d fd ff ff e8 34 97 ef fe <0f> 0b 41 bd fb ff ff ff e9 fd fc ff ff e8 f2 b7 2d ff e9 84 fb ff RSP: 0018:ffffc900011d7ba0 EFLAGS: 00010293 RAX: ffff888095ada240 RBX: 0000000000002000 RCX: ffffffff82839b29 RDX: 0000000000000000 RSI: ffffffff82839d5c RDI: 0000000000000005 RBP: 0000000004068002 R08: ffff888095ada240 R09: ffffed1013e17d81 R10: ffff88809f0bec03 R11: ffffed1013e17d80 R12: ffff888093cc3580 R13: ffff8880887393b8 R14: 000000000002a002 R15: ffff888093cc3600 ovl_real_fdget fs/overlayfs/file.c:124 [inline] ovl_write_iter+0x3da/0x11a0 fs/overlayfs/file.c:331 call_write_iter include/linux/fs.h:1907 [inline] new_sync_write+0x4a2/0x700 fs/read_write.c:484 __vfs_write+0xc9/0x100 fs/read_write.c:497 vfs_write+0x268/0x5d0 fs/read_write.c:559 ksys_write+0x12d/0x250 fs/read_write.c:612 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x440309 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd92aa3ab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440309 RDX: 0000000000000001 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b90 R13: 0000000000401c20 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..