================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] BUG: KASAN: use-after-free in refcount_read include/linux/refcount.h:147 [inline] BUG: KASAN: use-after-free in skb_unref include/linux/skbuff.h:1131 [inline] BUG: KASAN: use-after-free in consume_skb+0x3c/0x250 net/core/skbuff.c:926 Read of size 4 at addr ffff88811151636c by task syz.4.7794/30798 CPU: 1 PID: 30798 Comm: syz.4.7794 Not tainted 5.15.168-syzkaller-00719-g101e665d55a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106 print_address_description+0x87/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:427 [inline] kasan_report+0x179/0x1c0 mm/kasan/report.c:444 kasan_check_range+0x293/0x2a0 mm/kasan/generic.c:189 __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] refcount_read include/linux/refcount.h:147 [inline] skb_unref include/linux/skbuff.h:1131 [inline] consume_skb+0x3c/0x250 net/core/skbuff.c:926 __sk_msg_free+0x2dd/0x370 net/core/skmsg.c:205 sk_msg_free net/core/skmsg.c:218 [inline] __sk_psock_purge_ingress_msg net/core/skmsg.c:769 [inline] __sk_psock_zap_ingress net/core/skmsg.c:787 [inline] sk_psock_stop+0x44c/0x4d0 net/core/skmsg.c:805 sk_psock_drop+0x219/0x310 net/core/skmsg.c:844 sk_psock_put include/linux/skmsg.h:458 [inline] sock_map_unref+0x48f/0x4d0 net/core/sock_map.c:183 __sock_map_delete net/core/sock_map.c:425 [inline] sock_map_delete_from_link net/core/sock_map.c:438 [inline] sock_map_unlink net/core/sock_map.c:1497 [inline] sock_map_remove_links+0x41c/0x650 net/core/sock_map.c:1512 sock_map_close+0x114/0x530 net/core/sock_map.c:1549 unix_release+0x82/0xc0 net/unix/af_unix.c:936 __sock_release net/socket.c:649 [inline] sock_close+0xdf/0x270 net/socket.c:1336 __fput+0x228/0x8c0 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6bc29bd809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff8be02618 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f6bc2b84ba0 RCX: 00007f6bc29bd809 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f6bc2b84ba0 R08: 0000000000000000 R09: 00007fff8be028ff R10: 000000000003fd60 R11: 0000000000000246 R12: 0000000000201343 R13: 00007fff8be02720 R14: 0000000000000032 R15: ffffffffffffffff Allocated by task 30815: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466 kasan_slab_alloc include/linux/kasan.h:217 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550 slab_alloc_node mm/slub.c:3240 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253 skb_clone+0x1d1/0x360 net/core/skbuff.c:1547 sk_psock_verdict_recv+0x53/0x840 net/core/skmsg.c:1183 unix_read_sock+0x132/0x370 net/unix/af_unix.c:2428 sk_psock_verdict_data_ready+0x147/0x1a0 net/core/skmsg.c:1226 unix_dgram_sendmsg+0x15fa/0x2090 net/unix/af_unix.c:1942 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490 __sys_sendmsg net/socket.c:2519 [inline] __do_sys_sendmsg net/socket.c:2528 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Freed by task 25911: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 kfree_skbmem+0x104/0x170 __kfree_skb net/core/skbuff.c:758 [inline] kfree_skb_reason net/core/skbuff.c:778 [inline] kfree_skb+0xc2/0x360 net/core/skbuff.c:792 sock_drop include/linux/skmsg.h:312 [inline] sk_psock_backlog+0xc21/0xd90 net/core/skmsg.c:682 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 The buggy address belongs to the object at ffff888111516280 which belongs to the cache skbuff_head_cache of size 248 The buggy address is located 236 bytes inside of 248-byte region [ffff888111516280, ffff888111516378) The buggy address belongs to the page: page:ffffea0004454580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111516 flags: 0x4000000000000200(slab|zone=1) raw: 4000000000000200 ffffea0004810800 0000000b0000000b ffff8881081ab800 raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 0, ts 18372428789, free_ts 18200063662 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5779 allocate_slab mm/slub.c:1932 [inline] new_slab+0x9a/0x4e0 mm/slub.c:1995 ___slab_alloc+0x39e/0x830 mm/slub.c:3028 __slab_alloc+0x4a/0x90 mm/slub.c:3115 slab_alloc_node mm/slub.c:3206 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0x134/0x200 mm/slub.c:3253 kmem_cache_alloc_node include/linux/slab.h:474 [inline] __alloc_skb+0xbe/0x550 net/core/skbuff.c:416 alloc_skb include/linux/skbuff.h:1183 [inline] __tcp_send_ack+0x95/0x710 net/ipv4/tcp_output.c:3984 tcp_send_ack+0x3b/0x60 net/ipv4/tcp_output.c:4016 __tcp_ack_snd_check+0x3fc/0x970 net/ipv4/tcp_input.c:5584 tcp_rcv_established+0x10f1/0x1ac0 net/ipv4/tcp_input.c:6019 tcp_v4_do_rcv+0x3d7/0xa00 net/ipv4/tcp_ipv4.c:1726 tcp_v4_rcv+0x23dd/0x2a70 net/ipv4/tcp_ipv4.c:2138 ip_protocol_deliver_rcu+0x32f/0x710 net/ipv4/ip_input.c:204 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1472 [inline] free_pcp_prepare mm/page_alloc.c:1544 [inline] free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x61/0xf0 mm/page_alloc.c:5855 free_pages+0x7c/0x90 mm/page_alloc.c:5866 kasan_depopulate_vmalloc_pte+0x6a/0x90 mm/kasan/shadow.c:354 apply_to_pte_range mm/memory.c:2630 [inline] apply_to_pmd_range mm/memory.c:2674 [inline] apply_to_pud_range mm/memory.c:2710 [inline] apply_to_p4d_range mm/memory.c:2746 [inline] __apply_to_page_range+0x8dd/0xbe0 mm/memory.c:2780 apply_to_existing_page_range+0x38/0x50 mm/memory.c:2813 kasan_release_vmalloc+0x9a/0xb0 mm/kasan/shadow.c:464 __purge_vmap_area_lazy+0x154a/0x1690 mm/vmalloc.c:1715 _vm_unmap_aliases+0x339/0x3b0 mm/vmalloc.c:2118 vm_unmap_aliases+0x19/0x20 mm/vmalloc.c:2141 change_page_attr_set_clr+0x308/0x1050 arch/x86/mm/pat/set_memory.c:1740 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline] set_memory_ro+0xa1/0xe0 arch/x86/mm/pat/set_memory.c:1943 bpf_jit_binary_lock_ro include/linux/filter.h:892 [inline] bpf_int_jit_compile+0xbf21/0xc6b0 arch/x86/net/bpf_jit_comp.c:2422 bpf_prog_select_runtime+0x724/0xa10 kernel/bpf/core.c:1930 bpf_migrate_filter net/core/filter.c:1299 [inline] bpf_prepare_filter+0x10d0/0x13d0 net/core/filter.c:1347 Memory state around the buggy address: ffff888111516200: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc ffff888111516280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888111516300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc ^ ffff888111516380: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ffff888111516400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ================================================================== BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3519 [inline] BUG: KASAN: double-free or invalid-free in kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 CPU: 1 PID: 30798 Comm: syz.4.7794 Tainted: G B 5.15.168-syzkaller-00719-g101e665d55a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106 print_address_description+0x87/0x3b0 mm/kasan/report.c:248 kasan_report_invalid_free+0x6b/0xa0 mm/kasan/report.c:370 ____kasan_slab_free+0x13e/0x160 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 kfree_skbmem+0x104/0x170 __kfree_skb net/core/skbuff.c:758 [inline] consume_skb+0xb4/0x250 net/core/skbuff.c:930 __sk_msg_free+0x2dd/0x370 net/core/skmsg.c:205 sk_msg_free net/core/skmsg.c:218 [inline] __sk_psock_purge_ingress_msg net/core/skmsg.c:769 [inline] __sk_psock_zap_ingress net/core/skmsg.c:787 [inline] sk_psock_stop+0x44c/0x4d0 net/core/skmsg.c:805 sk_psock_drop+0x219/0x310 net/core/skmsg.c:844 sk_psock_put include/linux/skmsg.h:458 [inline] sock_map_unref+0x48f/0x4d0 net/core/sock_map.c:183 __sock_map_delete net/core/sock_map.c:425 [inline] sock_map_delete_from_link net/core/sock_map.c:438 [inline] sock_map_unlink net/core/sock_map.c:1497 [inline] sock_map_remove_links+0x41c/0x650 net/core/sock_map.c:1512 sock_map_close+0x114/0x530 net/core/sock_map.c:1549 unix_release+0x82/0xc0 net/unix/af_unix.c:936 __sock_release net/socket.c:649 [inline] sock_close+0xdf/0x270 net/socket.c:1336 __fput+0x228/0x8c0 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xc4/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6bc29bd809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff8be02618 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f6bc2b84ba0 RCX: 00007f6bc29bd809 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f6bc2b84ba0 R08: 0000000000000000 R09: 00007fff8be028ff R10: 000000000003fd60 R11: 0000000000000246 R12: 0000000000201343 R13: 00007fff8be02720 R14: 0000000000000032 R15: ffffffffffffffff Allocated by task 30815: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466 kasan_slab_alloc include/linux/kasan.h:217 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550 slab_alloc_node mm/slub.c:3240 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253 skb_clone+0x1d1/0x360 net/core/skbuff.c:1547 sk_psock_verdict_recv+0x53/0x840 net/core/skmsg.c:1183 unix_read_sock+0x132/0x370 net/unix/af_unix.c:2428 sk_psock_verdict_data_ready+0x147/0x1a0 net/core/skmsg.c:1226 unix_dgram_sendmsg+0x15fa/0x2090 net/unix/af_unix.c:1942 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2490 __sys_sendmsg net/socket.c:2519 [inline] __do_sys_sendmsg net/socket.c:2528 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2526 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2526 x64_sys_call+0x16a/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Freed by task 25911: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 kfree_skbmem+0x104/0x170 __kfree_skb net/core/skbuff.c:758 [inline] kfree_skb_reason net/core/skbuff.c:778 [inline] kfree_skb+0xc2/0x360 net/core/skbuff.c:792 sock_drop include/linux/skmsg.h:312 [inline] sk_psock_backlog+0xc21/0xd90 net/core/skmsg.c:682 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 The buggy address belongs to the object at ffff888111516280 which belongs to the cache skbuff_head_cache of size 248 The buggy address is located 0 bytes inside of 248-byte region [ffff888111516280, ffff888111516378) The buggy address belongs to the page: page:ffffea0004454580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111516 flags: 0x4000000000000200(slab|zone=1) raw: 4000000000000200 ffffea0004810800 0000000b0000000b ffff8881081ab800 raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 0, ts 18372428789, free_ts 18200063662 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5779 allocate_slab mm/slub.c:1932 [inline] new_slab+0x9a/0x4e0 mm/slub.c:1995 ___slab_alloc+0x39e/0x830 mm/slub.c:3028 __slab_alloc+0x4a/0x90 mm/slub.c:3115 slab_alloc_node mm/slub.c:3206 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0x134/0x200 mm/slub.c:3253 kmem_cache_alloc_node include/linux/slab.h:474 [inline] __alloc_skb+0xbe/0x550 net/core/skbuff.c:416 alloc_skb include/linux/skbuff.h:1183 [inline] __tcp_send_ack+0x95/0x710 net/ipv4/tcp_output.c:3984 tcp_send_ack+0x3b/0x60 net/ipv4/tcp_output.c:4016 __tcp_ack_snd_check+0x3fc/0x970 net/ipv4/tcp_input.c:5584 tcp_rcv_established+0x10f1/0x1ac0 net/ipv4/tcp_input.c:6019 tcp_v4_do_rcv+0x3d7/0xa00 net/ipv4/tcp_ipv4.c:1726 tcp_v4_rcv+0x23dd/0x2a70 net/ipv4/tcp_ipv4.c:2138 ip_protocol_deliver_rcu+0x32f/0x710 net/ipv4/ip_input.c:204 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1472 [inline] free_pcp_prepare mm/page_alloc.c:1544 [inline] free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x61/0xf0 mm/page_alloc.c:5855 free_pages+0x7c/0x90 mm/page_alloc.c:5866 kasan_depopulate_vmalloc_pte+0x6a/0x90 mm/kasan/shadow.c:354 apply_to_pte_range mm/memory.c:2630 [inline] apply_to_pmd_range mm/memory.c:2674 [inline] apply_to_pud_range mm/memory.c:2710 [inline] apply_to_p4d_range mm/memory.c:2746 [inline] __apply_to_page_range+0x8dd/0xbe0 mm/memory.c:2780 apply_to_existing_page_range+0x38/0x50 mm/memory.c:2813 kasan_release_vmalloc+0x9a/0xb0 mm/kasan/shadow.c:464 __purge_vmap_area_lazy+0x154a/0x1690 mm/vmalloc.c:1715 _vm_unmap_aliases+0x339/0x3b0 mm/vmalloc.c:2118 vm_unmap_aliases+0x19/0x20 mm/vmalloc.c:2141 change_page_attr_set_clr+0x308/0x1050 arch/x86/mm/pat/set_memory.c:1740 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline] set_memory_ro+0xa1/0xe0 arch/x86/mm/pat/set_memory.c:1943 bpf_jit_binary_lock_ro include/linux/filter.h:892 [inline] bpf_int_jit_compile+0xbf21/0xc6b0 arch/x86/net/bpf_jit_comp.c:2422 bpf_prog_select_runtime+0x724/0xa10 kernel/bpf/core.c:1930 bpf_migrate_filter net/core/filter.c:1299 [inline] bpf_prepare_filter+0x10d0/0x13d0 net/core/filter.c:1347 Memory state around the buggy address: ffff888111516180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888111516200: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc >ffff888111516280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888111516300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc ffff888111516380: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ==================================================================