==================================================================
BUG: KASAN: slab-out-of-bounds in do_csum+0x44/0x254 arch/arm64/lib/csum.c:39
Read of size 4294967240 at addr ffff0000d6392438 by task syz-executor.2/16932

CPU: 0 PID: 16932 Comm: syz-executor.2 Not tainted 6.5.0-rc7-syzkaller-gfe4469582053 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x174/0x514 mm/kasan/report.c:475
 kasan_report+0xd8/0x138 mm/kasan/report.c:588
 kasan_check_range+0x254/0x294 mm/kasan/generic.c:187
 __kasan_check_read+0x20/0x30 mm/kasan/shadow.c:31
 do_csum+0x44/0x254 arch/arm64/lib/csum.c:39
 csum_partial+0x30/0x58 lib/checksum.c:128
 gso_make_checksum include/net/gso.h:74 [inline]
 __udp_gso_segment+0xba4/0x1c98 net/ipv4/udp_offload.c:340
 udp6_ufo_fragment+0x4dc/0xc48 net/ipv6/udp_offload.c:47
 ipv6_gso_segment+0x5cc/0x1760 net/ipv6/ip6_offload.c:120
 skb_mac_gso_segment+0x2d0/0x5bc net/core/gso.c:53
 __skb_gso_segment+0x250/0x3cc net/core/gso.c:124
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x3cc/0xe54 net/core/dev.c:3618
 __dev_queue_xmit+0x110c/0x3318 net/core/dev.c:4195
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 packet_xmit+0x6c/0x318 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3085 [inline]
 packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3117
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg net/socket.c:748 [inline]
 __sys_sendto+0x3bc/0x540 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2142
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Allocated by task 16932:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x7c mm/kasan/common.c:52
 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:511
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x90/0x4a0 mm/slab.h:762
 slab_alloc_node mm/slub.c:3470 [inline]
 kmem_cache_alloc_node+0x2c8/0x46c mm/slub.c:3515
 kmalloc_reserve+0xb4/0x240 net/core/skbuff.c:559
 __alloc_skb+0x1c8/0x3d8 net/core/skbuff.c:644
 skb_segment+0xa80/0x32ec net/core/skbuff.c:4512
 __udp_gso_segment+0x344/0x1c98 net/ipv4/udp_offload.c:298
 udp6_ufo_fragment+0x4dc/0xc48 net/ipv6/udp_offload.c:47
 ipv6_gso_segment+0x5cc/0x1760 net/ipv6/ip6_offload.c:120
 skb_mac_gso_segment+0x2d0/0x5bc net/core/gso.c:53
 __skb_gso_segment+0x250/0x3cc net/core/gso.c:124
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x3cc/0xe54 net/core/dev.c:3618
 __dev_queue_xmit+0x110c/0x3318 net/core/dev.c:4195
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 packet_xmit+0x6c/0x318 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3085 [inline]
 packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3117
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg net/socket.c:748 [inline]
 __sys_sendto+0x3bc/0x540 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2142
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to the object at ffff0000d6392400
 which belongs to the cache skbuff_small_head of size 640
The buggy address is located 56 bytes inside of
 allocated 640-byte region [ffff0000d6392400, ffff0000d6392680)

The buggy address belongs to the physical page:
page:000000000fc03380 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x116390
head:000000000fc03380 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000010200 ffff0000c1d4a640 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080150015 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d6392580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d6392600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d6392680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff0000d6392700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d6392780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
================================================================================
UBSAN: shift-out-of-bounds in arch/arm64/lib/csum.c:116:15
shift exponent 512 is too large for 64-bit type 'u64' (aka 'unsigned long long')
CPU: 0 PID: 16932 Comm: syz-executor.2 Tainted: G    B              6.5.0-rc7-syzkaller-gfe4469582053 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:387
 do_csum+0x238/0x254 arch/arm64/lib/csum.c:116
 csum_partial+0x30/0x58 lib/checksum.c:128
 gso_make_checksum include/net/gso.h:74 [inline]
 __udp_gso_segment+0xba4/0x1c98 net/ipv4/udp_offload.c:340
 udp6_ufo_fragment+0x4dc/0xc48 net/ipv6/udp_offload.c:47
 ipv6_gso_segment+0x5cc/0x1760 net/ipv6/ip6_offload.c:120
 skb_mac_gso_segment+0x2d0/0x5bc net/core/gso.c:53
 __skb_gso_segment+0x250/0x3cc net/core/gso.c:124
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x3cc/0xe54 net/core/dev.c:3618
 __dev_queue_xmit+0x110c/0x3318 net/core/dev.c:4195
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 packet_xmit+0x6c/0x318 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3085 [inline]
 packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3117
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg net/socket.c:748 [inline]
 __sys_sendto+0x3bc/0x540 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2142
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
================================================================================
================================================================================
UBSAN: shift-out-of-bounds in arch/arm64/lib/csum.c:116:25
shift exponent 512 is too large for 64-bit type 'u64' (aka 'unsigned long long')
CPU: 0 PID: 16932 Comm: syz-executor.2 Tainted: G    B              6.5.0-rc7-syzkaller-gfe4469582053 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:387
 do_csum+0x250/0x254 arch/arm64/lib/csum.c:116
 csum_partial+0x30/0x58 lib/checksum.c:128
 gso_make_checksum include/net/gso.h:74 [inline]
 __udp_gso_segment+0xba4/0x1c98 net/ipv4/udp_offload.c:340
 udp6_ufo_fragment+0x4dc/0xc48 net/ipv6/udp_offload.c:47
 ipv6_gso_segment+0x5cc/0x1760 net/ipv6/ip6_offload.c:120
 skb_mac_gso_segment+0x2d0/0x5bc net/core/gso.c:53
 __skb_gso_segment+0x250/0x3cc net/core/gso.c:124
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x3cc/0xe54 net/core/dev.c:3618
 __dev_queue_xmit+0x110c/0x3318 net/core/dev.c:4195
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 packet_xmit+0x6c/0x318 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3085 [inline]
 packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3117
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg net/socket.c:748 [inline]
 __sys_sendto+0x3bc/0x540 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2142
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
================================================================================
skb len=9070 headroom=2 headlen=62 tailroom=0
mac=(2,14) net=(16,40) trans=56
shinfo(txflags=0 nr_frags=3 gso(size=2810 type=131074 segs=0))
csum(0x0 ip_summed=0 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x86dd pkttype=0 iif=0
dev name=netdevsim0 feat=0x001c000080014869
sk family=17 type=3 proto=0
skb linear:   00000000: 0c 2c ff f5 7b 01 6d 27 63 bd 56 37 86 dd 39 8d
skb linear:   00000010: 53 75 03 e5 11 02 59 1f 03 1e e6 16 d5 c0 18 43
skb linear:   00000020: 74 a7 ff e4 ec 55 e0 65 47 86 a7 01 2c 93 5b a5
skb linear:   00000030: 14 d4 08 08 ef a0 2b 80 16 01 84 2f d0 8d
skb frag:     00000000: 49 a4 7e ff 71 bc 41 31 fe 4c 1f 99 bf 00 a9 00
skb frag:     00000010: 00 00 08 d1 84 3e 77 0a fd 6e 9e f5 83 7d bd 00
skb frag:     00000020: 00 00 00 53 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     00000030: 00 00 00 00 00 00 00 00 10 00 00 00 e0 06 00 00
skb frag:     00000040: 00 00 00 00 89 7b 42 8e 75 eb 00 00 00 00 00 00
skb frag:     00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     00000070: 00 00 00 00 00 00 00 00 11 00 00 1b e0 06 00 00
skb frag:     00000080: 01 00 09 06 ff ff ff ff ff ff 00 00 00 00 00 00
skb frag:     00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     000000b0: 00 00 00 00 00 00 00 00 00 08 00 20 00 00 00 00
skb frag:     000000c0: 4c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
skb frag:     000000f0: 00 00
------------[ cut here ]------------
netdevsim: caps=(0x001c000080014869, 0x0000000000000000)
WARNING: CPU: 0 PID: 16932 at net/core/dev.c:3257 skb_warn_bad_offload+0x160/0x194 net/core/dev.c:3255
Modules linked in:
CPU: 0 PID: 16932 Comm: syz-executor.2 Tainted: G    B              6.5.0-rc7-syzkaller-gfe4469582053 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : skb_warn_bad_offload+0x160/0x194 net/core/dev.c:3255
lr : skb_warn_bad_offload+0x160/0x194 net/core/dev.c:3255
sp : ffff80009cf573b0
x29: ffff80009cf573b0 x28: dfff800000000000 x27: ffff00012ef8c000
x26: 0000000000000020 x25: 1fffe0001ba070b0 x24: ffff80008c894b80
x23: dfff800000000000 x22: ffff0000dd038518 x21: ffff80008bb51460
x20: ffff00012ef8c000 x19: ffff00012ef8c0f0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a572e30 x15: 0000000000000001
x14: 1fffe0003683ae2a x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000040000 x10: 000000000003ffff x9 : 6cff4fb420d0cf00
x8 : 6cff4fb420d0cf00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009cf56c98 x4 : ffff80008e17f000 x3 : ffff8000805a25e4
x2 : 0000000000000001 x1 : 0000000000000200 x0 : 0000000000000000
Call trace:
 skb_warn_bad_offload+0x160/0x194 net/core/dev.c:3255
 __skb_gso_segment+0x2f4/0x3cc net/core/gso.c:127
 skb_gso_segment include/net/gso.h:83 [inline]
 validate_xmit_skb+0x3cc/0xe54 net/core/dev.c:3618
 __dev_queue_xmit+0x110c/0x3318 net/core/dev.c:4195
 dev_queue_xmit include/linux/netdevice.h:3088 [inline]
 packet_xmit+0x6c/0x318 net/packet/af_packet.c:276
 packet_snd net/packet/af_packet.c:3085 [inline]
 packet_sendmsg+0x376c/0x4c98 net/packet/af_packet.c:3117
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg net/socket.c:748 [inline]
 __sys_sendto+0x3bc/0x540 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2142
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 636
hardirqs last  enabled at (636): [<ffff80008a570c30>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (636): [<ffff80008a570c30>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (635): [<ffff80008a56e84c>] __el1_irq arch/arm64/kernel/entry-common.c:499 [inline]
hardirqs last disabled at (635): [<ffff80008a56e84c>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:517
softirqs last  enabled at (580): [<ffff800080033cec>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (614): [<ffff8000887aeb54>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---