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BUG: KASAN: slab-out-of-bounds in btf_name_valid_section kernel/bpf/btf.c:824 [inline]
BUG: KASAN: slab-out-of-bounds in btf_datasec_check_meta+0x2c9/0x9a0 kernel/bpf/btf.c:4693
Read of size 1 at addr ffff88802e7f01ac by task syz.2.898/9036

CPU: 1 UID: 0 PID: 9036 Comm: syz.2.898 Not tainted 6.11.0-rc4-syzkaller-00326-g5277d130947b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 btf_name_valid_section kernel/bpf/btf.c:824 [inline]
 btf_datasec_check_meta+0x2c9/0x9a0 kernel/bpf/btf.c:4693
 btf_check_meta kernel/bpf/btf.c:5175 [inline]
 btf_check_all_metas kernel/bpf/btf.c:5199 [inline]
 btf_parse_type_sec+0x4d5/0x2620 kernel/bpf/btf.c:5335
 btf_parse kernel/bpf/btf.c:5763 [inline]
 btf_new_fd+0x43f/0xd30 kernel/bpf/btf.c:7683
 __sys_bpf+0x6ef/0x810 kernel/bpf/syscall.c:5762
 __do_sys_bpf kernel/bpf/syscall.c:5824 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5822 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5822
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0eca57def9
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:00007f0ecb32a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f0eca735f80 RCX: 00007f0eca57def9
RDX: 0000000000000028 RSI: 00000000200004c0 RDI: 0000000000000012
RBP: 00007f0eca5f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0eca735f80 R15: 00007ffc081b49c8
 </TASK>

Allocated by task 9036:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:4158 [inline]
 __kmalloc_node_noprof+0x22a/0x440 mm/slub.c:4164
 __kvmalloc_node_noprof+0x72/0x190 mm/util.c:650
 btf_parse kernel/bpf/btf.c:5739 [inline]
 btf_new_fd+0x265/0xd30 kernel/bpf/btf.c:7683
 __sys_bpf+0x6ef/0x810 kernel/bpf/syscall.c:5762
 __do_sys_bpf kernel/bpf/syscall.c:5824 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5822 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5822
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802e7f0180
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 0 bytes to the right of
 allocated 44-byte region [ffff88802e7f0180, ffff88802e7f01ac)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2e7f0
anon flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfdffffff(slab)
raw: 00fff00000000000 ffff88801ac418c0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080200020 00000001fdffffff 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 0x152cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5474, tgid 5474 (syz-executor), ts 181349827716, free_ts 181349464115
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1493
 prep_new_page mm/page_alloc.c:1501 [inline]
 get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3439
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4695
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_slab_page+0x5f/0x120 mm/slub.c:2321
 allocate_slab+0x5a/0x2f0 mm/slub.c:2484
 new_slab mm/slub.c:2537 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3723
 __slab_alloc+0x58/0xa0 mm/slub.c:3813
 __slab_alloc_node mm/slub.c:3866 [inline]
 slab_alloc_node mm/slub.c:4025 [inline]
 __kmalloc_cache_node_noprof+0x20c/0x300 mm/slub.c:4197
 kmalloc_node_noprof include/linux/slab.h:704 [inline]
 __get_vm_area_node+0x113/0x270 mm/vmalloc.c:3109
 __vmalloc_node_range_noprof+0x3c6/0x1400 mm/vmalloc.c:3794
 __vmalloc_node_noprof mm/vmalloc.c:3899 [inline]
 vzalloc_noprof+0x79/0x90 mm/vmalloc.c:3972
 alloc_counters+0xd7/0x740 net/ipv4/netfilter/ip_tables.c:799
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:821 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
 do_ipt_get_ctl+0xecc/0x1810 net/ipv4/netfilter/ip_tables.c:1668
 nf_getsockopt+0x299/0x2c0 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x222/0x2e0 net/ipv4/ip_sockglue.c:1777
 tcp_getsockopt+0x163/0x1c0 net/ipv4/tcp.c:4409
page last free pid 5474 tgid 5474 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1094 [inline]
 free_unref_page+0xd22/0xea0 mm/page_alloc.c:2612
 vfree+0x186/0x2e0 mm/vmalloc.c:3364
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:866 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
 do_ipt_get_ctl+0x11df/0x1810 net/ipv4/netfilter/ip_tables.c:1668
 nf_getsockopt+0x299/0x2c0 net/netfilter/nf_sockopt.c:116
 ip_getsockopt+0x222/0x2e0 net/ipv4/ip_sockglue.c:1777
 tcp_getsockopt+0x163/0x1c0 net/ipv4/tcp.c:4409
 do_sock_getsockopt+0x373/0x850 net/socket.c:2386
 __sys_getsockopt+0x271/0x330 net/socket.c:2415
 __do_sys_getsockopt net/socket.c:2425 [inline]
 __se_sys_getsockopt net/socket.c:2422 [inline]
 __x64_sys_getsockopt+0xb5/0xd0 net/socket.c:2422
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802e7f0080: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff88802e7f0100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff88802e7f0180: 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffff88802e7f0200: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88802e7f0280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
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