audit: type=1400 audit(1560831228.497:28): avc: denied { setattr } for pid=24836 comm="syz-executor.0" name="current" dev="proc" ino=82083 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=file permissive=1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 24864 at fs/attr.c:211 notify_change2+0xae2/0xd90 fs/attr.c:211 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 24864 Comm: syz-executor.3 Not tainted 4.9.182+ #1 ffff880191067430 ffffffff81b57e21 0000000000000000 ffffffff82a3a960 00000000ffffffff 0000000000000001 0000000000000009 ffff880191067510 ffffffff813fd5da 0000000041b58ab3 ffffffff82e313da ffffffff813fd401 Call Trace: [<0000000062aa2c8a>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000062aa2c8a>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000c82f9c3b>] panic+0x1d9/0x3bd kernel/panic.c:180 [<00000000e4818034>] __warn.cold+0x2f/0x2f kernel/panic.c:546 [<0000000015b4bb59>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589 [<0000000067a5d274>] notify_change2+0xae2/0xd90 fs/attr.c:211 [<00000000ee04d9f9>] __remove_privs fs/inode.c:1793 [inline] [<00000000ee04d9f9>] file_remove_privs+0x285/0x4b0 fs/inode.c:1815 [<0000000051796856>] __generic_file_write_iter+0x157/0x530 mm/filemap.c:3010 [<000000003112b763>] blkdev_write_iter fs/block_dev.c:1726 [inline] [<000000003112b763>] blkdev_write_iter+0x1bb/0x370 fs/block_dev.c:1706 [<00000000c118c188>] vfs_iter_write+0x2e2/0x580 fs/read_write.c:390 [<000000007091c99e>] iter_file_splice_write+0x5a9/0xb10 fs/splice.c:768 [<000000005708de8d>] do_splice_from fs/splice.c:870 [inline] [<000000005708de8d>] direct_splice_actor+0x126/0x1a0 fs/splice.c:1037 [<00000000d7a1c825>] splice_direct_to_actor+0x2c8/0x820 fs/splice.c:992 [<00000000d8a273d0>] do_splice_direct+0x1a5/0x260 fs/splice.c:1080 [<00000000163a22bb>] do_sendfile+0x503/0xc00 fs/read_write.c:1402 [<000000003e7c97e8>] SYSC_sendfile64 fs/read_write.c:1463 [inline] [<000000003e7c97e8>] SyS_sendfile64+0x145/0x160 fs/read_write.c:1449 [<000000009085c7c5>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000005f479a4a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..