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BUG: KASAN: slab-out-of-bounds in btf_name_valid_section kernel/bpf/btf.c:829 [inline]
BUG: KASAN: slab-out-of-bounds in btf_datasec_check_meta+0x2c9/0x9a0 kernel/bpf/btf.c:4698
Read of size 1 at addr ffff88801ff02339 by task syz.3.2561/14864

CPU: 0 UID: 0 PID: 14864 Comm: syz.3.2561 Not tainted 6.11.0-rc6-syzkaller-00219-g3e705251d998 #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:829 [inline]
 btf_datasec_check_meta+0x2c9/0x9a0 kernel/bpf/btf.c:4698
 btf_check_meta kernel/bpf/btf.c:5180 [inline]
 btf_check_all_metas kernel/bpf/btf.c:5204 [inline]
 btf_parse_type_sec+0x4d5/0x2620 kernel/bpf/btf.c:5340
 btf_parse kernel/bpf/btf.c:5732 [inline]
 btf_new_fd+0x43f/0xd30 kernel/bpf/btf.c:7650
 __sys_bpf+0x6ef/0x810 kernel/bpf/syscall.c:5755
 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5815 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815
 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: 0033:0x7fd37817def9
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:00007fd37900c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fd378335f80 RCX: 00007fd37817def9
RDX: 0000000000000028 RSI: 0000000020000140 RDI: 0000000000000012
RBP: 00007fd3781f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fd378335f80 R15: 00007ffd2dcdc4e8
 </TASK>

Allocated by task 14864:
 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:4162 [inline]
 __kmalloc_node_noprof+0x22a/0x440 mm/slub.c:4168
 __kvmalloc_node_noprof+0x72/0x190 mm/util.c:650
 btf_parse kernel/bpf/btf.c:5708 [inline]
 btf_new_fd+0x265/0xd30 kernel/bpf/btf.c:7650
 __sys_bpf+0x6ef/0x810 kernel/bpf/syscall.c:5755
 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5815 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815
 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 ffff88801ff02300
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 0 bytes to the right of
 allocated 57-byte region [ffff88801ff02300, ffff88801ff02339)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ff02
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xfdffffff(slab)
raw: 00fff00000000000 ffff88801ac418c0 dead000000000100 dead000000000122
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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 16324740447, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1500
 prep_new_page mm/page_alloc.c:1508 [inline]
 get_page_from_freelist+0x2e4c/0x2f10 mm/page_alloc.c:3446
 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4702
 __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:2325
 allocate_slab+0x5a/0x2f0 mm/slub.c:2488
 new_slab mm/slub.c:2541 [inline]
 ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3727
 __slab_alloc+0x58/0xa0 mm/slub.c:3817
 __slab_alloc_node mm/slub.c:3870 [inline]
 slab_alloc_node mm/slub.c:4029 [inline]
 __do_kmalloc_node mm/slub.c:4161 [inline]
 __kmalloc_noprof+0x25a/0x400 mm/slub.c:4174
 kmalloc_noprof include/linux/slab.h:685 [inline]
 kzalloc_noprof include/linux/slab.h:807 [inline]
 kobject_get_path+0xb8/0x230 lib/kobject.c:161
 kobject_uevent_env+0x2a5/0x8e0 lib/kobject_uevent.c:545
 device_add+0x63b/0xbf0 drivers/base/core.c:3663
 __video_register_device+0x3951/0x4880 drivers/media/v4l2-core/v4l2-dev.c:1043
 video_register_device include/media/v4l2-dev.h:383 [inline]
 vivid_create_devnodes+0x1f5f/0x2c90 drivers/media/test-drivers/vivid/vivid-core.c:1677
 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2040 [inline]
 vivid_probe+0x5858/0x7cf0 drivers/media/test-drivers/vivid/vivid-core.c:2093
 platform_probe+0x13a/0x1c0 drivers/base/platform.c:1404
 really_probe+0x2b8/0xad0 drivers/base/dd.c:657
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88801ff02200: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88801ff02280: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
>ffff88801ff02300: 00 00 00 00 00 00 00 01 fc fc fc fc fc fc fc fc
                                        ^
 ffff88801ff02380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff88801ff02400: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
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