------------[ cut here ]------------ WARNING: CPU: 0 PID: 31935 at fs/attr.c:211 notify_change2+0xae2/0xd90 fs/attr.c:211 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 31935 Comm: syz-executor.1 Not tainted 4.9.180+ #4 ffff880197277430 ffffffff81b577f1 0000000000000000 ffffffff82a3a960 00000000ffffffff 0000000000000000 0000000000000009 ffff880197277510 ffffffff813fd2fa 0000000041b58ab3 ffffffff82e30d0a ffffffff813fd121 Call Trace: [<00000000ecd01184>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000ecd01184>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a83253d8>] panic+0x1d9/0x3bd kernel/panic.c:180 [<0000000032f18542>] __warn.cold+0x2f/0x2f kernel/panic.c:546 [<00000000780b608a>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589 [<00000000f597c2c5>] notify_change2+0xae2/0xd90 fs/attr.c:211 [<00000000cbaf9fbd>] __remove_privs fs/inode.c:1793 [inline] [<00000000cbaf9fbd>] file_remove_privs+0x285/0x4b0 fs/inode.c:1815 [<0000000062fd1599>] __generic_file_write_iter+0x157/0x530 mm/filemap.c:3010 [<00000000bf3f4c73>] blkdev_write_iter fs/block_dev.c:1726 [inline] [<00000000bf3f4c73>] blkdev_write_iter+0x1bb/0x370 fs/block_dev.c:1706 [<000000001bf3bcce>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390 [<00000000ab985d80>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768 [<00000000e8ea6245>] do_splice_from fs/splice.c:870 [inline] [<00000000e8ea6245>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037 [<0000000002e78d85>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992 [<00000000a88ae58c>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080 [<000000008e8fc164>] do_sendfile+0x503/0xc00 fs/read_write.c:1401 [<0000000036d67158>] SYSC_sendfile64 fs/read_write.c:1462 [inline] [<0000000036d67158>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1448 [<00000000abaf5715>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000029092f1a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..