==================================================================
BUG: KASAN: use-after-free in do_csum+0x44/0x254 arch/arm64/lib/csum.c:39
Read of size 4294967236 at addr ffff00013857c03c by task syz-executor.4/10349

CPU: 1 PID: 10349 Comm: syz-executor.4 Not tainted 6.2.0-syzkaller-18295-ga9b06ec42c0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __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:306 [inline]
 print_report+0x178/0x4e0 mm/kasan/report.c:417
 kasan_report+0xd4/0x130 mm/kasan/report.c:517
 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189
 __kasan_check_read+0x2c/0x3c 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/linux/skbuff.h:4876 [inline]
 __udp_gso_segment+0xaf4/0x1bcc net/ipv4/udp_offload.c:332
 udp4_ufo_fragment+0x3f8/0x6d4 net/ipv4/udp_offload.c:392
 inet_gso_segment+0x4c4/0x10f4 net/ipv4/af_inet.c:1399
 skb_mac_gso_segment+0x294/0x56c net/core/gro.c:141
 __skb_gso_segment+0x254/0x3d8 net/core/dev.c:3398
 skb_gso_segment include/linux/netdevice.h:4807 [inline]
 validate_xmit_skb+0x364/0xd38 net/core/dev.c:3656
 __dev_queue_xmit+0x12fc/0x3488 net/core/dev.c:4233
 dev_queue_xmit include/linux/netdevice.h:3033 [inline]
 br_dev_queue_push_xmit+0x530/0x658 net/bridge/br_forward.c:53
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 br_forward_finish+0xd0/0x118 net/bridge/br_forward.c:66
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 __br_forward+0x2f4/0x434 net/bridge/br_forward.c:115
 deliver_clone net/bridge/br_forward.c:131 [inline]
 maybe_deliver+0x2c0/0x390 net/bridge/br_forward.c:189
 br_flood+0x28c/0x3e0 net/bridge/br_forward.c:231
 br_dev_xmit+0xdcc/0x13a0
 __netdev_start_xmit include/linux/netdevice.h:4863 [inline]
 netdev_start_xmit include/linux/netdevice.h:4877 [inline]
 xmit_one net/core/dev.c:3575 [inline]
 dev_hard_start_xmit+0x324/0xc94 net/core/dev.c:3591
 __dev_queue_xmit+0x16d8/0x3488 net/core/dev.c:4241
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3033
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x39a4/0x4ed4 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 __sys_sendto+0x3b4/0x504 net/socket.c:2120
 __do_sys_sendto net/socket.c:2132 [inline]
 __se_sys_sendto net/socket.c:2128 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2128
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to the physical page:
page:000000002fff8635 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17857c
head:000000002fff8635 order:2 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010000(head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff00013857ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff00013857ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff000138580000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff000138580080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff000138580100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
================================================================================
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: 1 PID: 10349 Comm: syz-executor.4 Tainted: G    B              6.2.0-syzkaller-18295-ga9b06ec42c0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __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:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321
 do_csum+0x238/0x254 arch/arm64/lib/csum.c:116
 csum_partial+0x30/0x58 lib/checksum.c:128
 gso_make_checksum include/linux/skbuff.h:4876 [inline]
 __udp_gso_segment+0xaf4/0x1bcc net/ipv4/udp_offload.c:332
 udp4_ufo_fragment+0x3f8/0x6d4 net/ipv4/udp_offload.c:392
 inet_gso_segment+0x4c4/0x10f4 net/ipv4/af_inet.c:1399
 skb_mac_gso_segment+0x294/0x56c net/core/gro.c:141
 __skb_gso_segment+0x254/0x3d8 net/core/dev.c:3398
 skb_gso_segment include/linux/netdevice.h:4807 [inline]
 validate_xmit_skb+0x364/0xd38 net/core/dev.c:3656
 __dev_queue_xmit+0x12fc/0x3488 net/core/dev.c:4233
 dev_queue_xmit include/linux/netdevice.h:3033 [inline]
 br_dev_queue_push_xmit+0x530/0x658 net/bridge/br_forward.c:53
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 br_forward_finish+0xd0/0x118 net/bridge/br_forward.c:66
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 __br_forward+0x2f4/0x434 net/bridge/br_forward.c:115
 deliver_clone net/bridge/br_forward.c:131 [inline]
 maybe_deliver+0x2c0/0x390 net/bridge/br_forward.c:189
 br_flood+0x28c/0x3e0 net/bridge/br_forward.c:231
 br_dev_xmit+0xdcc/0x13a0
 __netdev_start_xmit include/linux/netdevice.h:4863 [inline]
 netdev_start_xmit include/linux/netdevice.h:4877 [inline]
 xmit_one net/core/dev.c:3575 [inline]
 dev_hard_start_xmit+0x324/0xc94 net/core/dev.c:3591
 __dev_queue_xmit+0x16d8/0x3488 net/core/dev.c:4241
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3033
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x39a4/0x4ed4 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 __sys_sendto+0x3b4/0x504 net/socket.c:2120
 __do_sys_sendto net/socket.c:2132 [inline]
 __se_sys_sendto net/socket.c:2128 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2128
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 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: 1 PID: 10349 Comm: syz-executor.4 Tainted: G    B              6.2.0-syzkaller-18295-ga9b06ec42c0f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __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:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321
 do_csum+0x250/0x254 arch/arm64/lib/csum.c:116
 csum_partial+0x30/0x58 lib/checksum.c:128
 gso_make_checksum include/linux/skbuff.h:4876 [inline]
 __udp_gso_segment+0xaf4/0x1bcc net/ipv4/udp_offload.c:332
 udp4_ufo_fragment+0x3f8/0x6d4 net/ipv4/udp_offload.c:392
 inet_gso_segment+0x4c4/0x10f4 net/ipv4/af_inet.c:1399
 skb_mac_gso_segment+0x294/0x56c net/core/gro.c:141
 __skb_gso_segment+0x254/0x3d8 net/core/dev.c:3398
 skb_gso_segment include/linux/netdevice.h:4807 [inline]
 validate_xmit_skb+0x364/0xd38 net/core/dev.c:3656
 __dev_queue_xmit+0x12fc/0x3488 net/core/dev.c:4233
 dev_queue_xmit include/linux/netdevice.h:3033 [inline]
 br_dev_queue_push_xmit+0x530/0x658 net/bridge/br_forward.c:53
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 br_forward_finish+0xd0/0x118 net/bridge/br_forward.c:66
 NF_HOOK+0x300/0x3ac include/linux/netfilter.h:302
 __br_forward+0x2f4/0x434 net/bridge/br_forward.c:115
 deliver_clone net/bridge/br_forward.c:131 [inline]
 maybe_deliver+0x2c0/0x390 net/bridge/br_forward.c:189
 br_flood+0x28c/0x3e0 net/bridge/br_forward.c:231
 br_dev_xmit+0xdcc/0x13a0
 __netdev_start_xmit include/linux/netdevice.h:4863 [inline]
 netdev_start_xmit include/linux/netdevice.h:4877 [inline]
 xmit_one net/core/dev.c:3575 [inline]
 dev_hard_start_xmit+0x324/0xc94 net/core/dev.c:3591
 __dev_queue_xmit+0x16d8/0x3488 net/core/dev.c:4241
 dev_queue_xmit+0x24/0x34 include/linux/netdevice.h:3033
 packet_snd net/packet/af_packet.c:3073 [inline]
 packet_sendmsg+0x39a4/0x4ed4 net/packet/af_packet.c:3104
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 __sys_sendto+0x3b4/0x504 net/socket.c:2120
 __do_sys_sendto net/socket.c:2132 [inline]
 __se_sys_sendto net/socket.c:2128 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2128
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
================================================================================