BUG: unable to handle kernel paging request at fffffbffffffffff #PF error: [PROT] [WRITE] PANIC: double fault, error_code: 0x0 PGD 21ffee067 P4D 21ffee067 PUD 21ffed067 PMD a985067 PTE 800000000a988161 PANIC: double fault, error_code: 0x0 Oops: 0003 [#1] PREEMPT SMP KASAN PANIC: double fault, error_code: 0x0 CPU: 1 PID: 7629 Comm: syz-executor5 Not tainted 5.0.0-rc1+ #18 PANIC: double fault, error_code: 0x0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 PANIC: double fault, error_code: 0x0 RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:66 PANIC: double fault, error_code: 0x0 Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 PANIC: double fault, error_code: 0x0 RSP: 0018:ffff8880ae707138 EFLAGS: 00010287 PANIC: double fault, error_code: 0x0 RAX: 0000000000000000 RBX: dffffc00000000ff RCX: e000000000000100 PANIC: double fault, error_code: 0x0 RDX: e000000000000100 RSI: 0000000000000000 RDI: fffffbffffffffff PANIC: double fault, error_code: 0x0 RBP: ffff8880ae707150 R08: 0000000000000002 R09: fffffbffffffffff PANIC: double fault, error_code: 0x0 R10: ffff888062aea400 R11: 0000000000000000 R12: 0000000000000800 PANIC: double fault, error_code: 0x0 R13: ffffffffffffffff R14: 00000000000007fe R15: ffff88812c3f0c40 PANIC: double fault, error_code: 0x0 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 PANIC: double fault, error_code: 0x0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 PANIC: double fault, error_code: 0x0 CR2: fffffbffffffffff CR3: 0000000062aac000 CR4: 00000000001406e0 PANIC: double fault, error_code: 0x0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 PANIC: double fault, error_code: 0x0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PANIC: double fault, error_code: 0x0 Call Trace: PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 __kasan_kmalloc.constprop.0+0x4c/0xe0 mm/kasan/common.c:491 PANIC: double fault, error_code: 0x0 kasan_kmalloc mm/kasan/common.c:504 [inline] kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:411 PANIC: double fault, error_code: 0x0 slab_post_alloc_hook mm/slab.h:444 [inline] slab_alloc_node mm/slab.c:3324 [inline] kmem_cache_alloc_node_trace+0x13c/0x720 mm/slab.c:3650 PANIC: double fault, error_code: 0x0 __do_kmalloc_node mm/slab.c:3672 [inline] __kmalloc_node_track_caller+0x3d/0x70 mm/slab.c:3687 PANIC: double fault, error_code: 0x0 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:140 PANIC: double fault, error_code: 0x0 __alloc_skb+0x12d/0x730 net/core/skbuff.c:208 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 alloc_skb include/linux/skbuff.h:1011 [inline] alloc_skb_with_frags+0x13a/0x770 net/core/skbuff.c:5288 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 sock_alloc_send_pskb+0x8c9/0xad0 net/core/sock.c:2091 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 PANIC: double fault, error_code: 0x0 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2108 PANIC: double fault, error_code: 0x0 mld_newpack+0x215/0x870 net/ipv6/mcast.c:1610 PANIC: double fault, error_code: 0x0