================================================================== BUG: KASAN: invalid-access in __packet_get_status+0x70/0xe0 net/packet/af_packet.c:438 Read at addr f5ff000045e60100 by task ksoftirqd/0/15 Pointer tag: [f5], memory tag: [f0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:233 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x48/0x60 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:351 [inline] print_report+0xd8/0x5f4 mm/kasan/report.c:462 kasan_report+0x7c/0x9c mm/kasan/report.c:572 __do_kernel_fault+0x174/0x1c0 arch/arm64/mm/fault.c:320 do_bad_area arch/arm64/mm/fault.c:479 [inline] do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:790 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:866 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:586 __packet_get_status+0x70/0xe0 net/packet/af_packet.c:438 packet_lookup_frame net/packet/af_packet.c:524 [inline] packet_current_rx_frame net/packet/af_packet.c:1117 [inline] tpacket_rcv+0x29c/0xbbc net/packet/af_packet.c:2355 __netif_receive_skb_one_core+0x58/0x84 net/core/dev.c:5493 __netif_receive_skb+0x18/0x64 net/core/dev.c:5607 process_backlog+0x8c/0x12c net/core/dev.c:5935 __napi_poll+0x38/0x18c net/core/dev.c:6498 napi_poll net/core/dev.c:6565 [inline] net_rx_action+0x2fc/0x374 net/core/dev.c:6698 _stext+0x124/0x290 run_ksoftirqd kernel/softirq.c:939 [inline] run_ksoftirqd+0x38/0x48 kernel/softirq.c:931 smpboot_thread_fn+0x23c/0x268 kernel/smpboot.c:164 kthread+0x118/0x11c kernel/kthread.c:379 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 The buggy address belongs to the physical page: page:000000004b65f0d9 refcount:9 mapcount:1 mapping:0000000000000000 index:0x0 pfn:0x85e60 head:000000004b65f0d9 order:3 entire_mapcount:0 nr_pages_mapped:8 pincount:0 flags: 0x1ffc28006010000(head|arch_2|arch_3|node=0|zone=0|lastcpupid=0x7ff|kasantag=0xa) page_type: 0x0() raw: 01ffc28006010000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 0000000900000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff000045e5ff00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff000045e60000: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 >ffff000045e60100: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 ^ ffff000045e60200: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 ffff000045e60300: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 ==================================================================