------------[ cut here ]------------ WARNING: CPU: 1 PID: 25713 at fs/attr.c:211 notify_change2+0xae2/0xd90 fs/attr.c:211 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 25713 Comm: syz-executor.3 Not tainted 4.9.181+ #7 ffff8801b1e97430 ffffffff81b57db1 0000000000000000 ffffffff82a3a960 00000000ffffffff 0000000000000001 0000000000000009 ffff8801b1e97510 ffffffff813fd56a 0000000041b58ab3 ffffffff82e311ea ffffffff813fd391 Call Trace: [<000000005400a79f>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005400a79f>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<000000009a6255a3>] panic+0x1d9/0x3bd kernel/panic.c:180 [<00000000714ce350>] __warn.cold+0x2f/0x2f kernel/panic.c:546 [<00000000af944a7a>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589 [<00000000f6e31fb5>] notify_change2+0xae2/0xd90 fs/attr.c:211 [<00000000797d32d1>] __remove_privs fs/inode.c:1793 [inline] [<00000000797d32d1>] file_remove_privs+0x285/0x4b0 fs/inode.c:1815 [<00000000dc824976>] __generic_file_write_iter+0x157/0x530 mm/filemap.c:3010 [<00000000f5add987>] blkdev_write_iter fs/block_dev.c:1726 [inline] [<00000000f5add987>] blkdev_write_iter+0x1bb/0x370 fs/block_dev.c:1706 [<00000000df00adeb>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390 [<0000000000fbe7ee>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768 [<000000004fdca522>] do_splice_from fs/splice.c:870 [inline] [<000000004fdca522>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037 [<000000009197d924>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992 [<000000005cc60a6a>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080 [<000000005b5624c6>] do_sendfile+0x503/0xc00 fs/read_write.c:1402 [<00000000d969302f>] SYSC_sendfile64 fs/read_write.c:1463 [inline] [<00000000d969302f>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1449 [<00000000bb4f06af>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000ba91de3d>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..