audit: type=1400 audit(2000000257.390:10008): avc: denied { create } for pid=14431 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 14435 at fs/attr.c:211 notify_change2+0xae2/0xd90 fs/attr.c:211 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 14435 Comm: syz-executor.1 Not tainted 4.9.180+ #3 ffff880173c67430 ffffffff81b577f1 0000000000000000 ffffffff82a3a960 00000000ffffffff 0000000000000000 0000000000000009 ffff880173c67510 ffffffff813fd2fa 0000000041b58ab3 ffffffff82e30d0a ffffffff813fd121 Call Trace: [<00000000ebc822e8>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000ebc822e8>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000f7768499>] panic+0x1d9/0x3bd kernel/panic.c:180 [<00000000c0669335>] __warn.cold+0x2f/0x2f kernel/panic.c:546 [<00000000c968de0e>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589 [<000000003e774f97>] notify_change2+0xae2/0xd90 fs/attr.c:211 [<00000000ed179bdd>] __remove_privs fs/inode.c:1793 [inline] [<00000000ed179bdd>] file_remove_privs+0x285/0x4b0 fs/inode.c:1815 [<0000000071a32ea2>] __generic_file_write_iter+0x157/0x530 mm/filemap.c:3010 [<000000008044e627>] blkdev_write_iter fs/block_dev.c:1726 [inline] [<000000008044e627>] blkdev_write_iter+0x1bb/0x370 fs/block_dev.c:1706 [<00000000e01ab5c2>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390 [<000000008cc77566>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768 [<000000008e2e8a42>] do_splice_from fs/splice.c:870 [inline] [<000000008e2e8a42>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037 [<0000000012bbae28>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992 [<00000000dbd4211c>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080 [<000000003563d607>] do_sendfile+0x503/0xc00 fs/read_write.c:1401 [<000000009909f559>] SYSC_sendfile64 fs/read_write.c:1462 [inline] [<000000009909f559>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1448 [<00000000c4f45955>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000038601bbf>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..