loop2: detected capacity change from 0 to 1024 ================================================================== BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:417 [inline] BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read fs/hfsplus/bnode.c:32 [inline] BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read_key+0x394/0x610 fs/hfsplus/bnode.c:70 Write of size 4026 at addr ffff88807b0df800 by task syz-executor.2/11085 CPU: 1 PID: 11085 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 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 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 memcpy_from_page include/linux/highmem.h:417 [inline] hfsplus_bnode_read fs/hfsplus/bnode.c:32 [inline] hfsplus_bnode_read_key+0x394/0x610 fs/hfsplus/bnode.c:70 hfsplus_brec_insert+0x6ea/0xde0 fs/hfsplus/brec.c:141 hfsplus_create_attr+0x4a2/0x640 fs/hfsplus/attributes.c:252 __hfsplus_setxattr+0x6fe/0x22d0 fs/hfsplus/xattr.c:354 hfsplus_setxattr+0xb0/0xe0 fs/hfsplus/xattr.c:434 hfsplus_user_setxattr+0x40/0x60 fs/hfsplus/xattr_user.c:30 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:629 [inline] setxattr+0x25d/0x2f0 fs/xattr.c:652 path_setxattr+0x1c0/0x2a0 fs/xattr.c:671 __do_sys_setxattr fs/xattr.c:687 [inline] __se_sys_setxattr fs/xattr.c:683 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:683 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc18aa7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc18b72d0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007fc18ababf80 RCX: 00007fc18aa7dda9 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000020000280 RBP: 00007fc18aaca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fc18ababf80 R15: 00007ffdf8d6dab8 Allocated by task 11085: 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:3966 [inline] __kmalloc+0x233/0x4a0 mm/slub.c:3979 kmalloc include/linux/slab.h:632 [inline] hfsplus_find_init+0x85/0x1c0 fs/hfsplus/bfind.c:21 hfsplus_create_attr+0x161/0x640 fs/hfsplus/attributes.c:216 __hfsplus_setxattr+0x6fe/0x22d0 fs/hfsplus/xattr.c:354 hfsplus_setxattr+0xb0/0xe0 fs/hfsplus/xattr.c:434 hfsplus_user_setxattr+0x40/0x60 fs/hfsplus/xattr_user.c:30 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:629 [inline] setxattr+0x25d/0x2f0 fs/xattr.c:652 path_setxattr+0x1c0/0x2a0 fs/xattr.c:671 __do_sys_setxattr fs/xattr.c:687 [inline] __se_sys_setxattr fs/xattr.c:683 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:683 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 The buggy address belongs to the object at ffff88807b0df800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 0 bytes inside of allocated 536-byte region [ffff88807b0df800, ffff88807b0dfa18) The buggy address belongs to the physical page: page:ffffea0001ec3600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7b0d8 head:ffffea0001ec3600 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888014c41dc0 ffffea0000b1d800 dead000000000002 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x152820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 2423, tgid 2423 (kworker/u8:7), ts 171889346035, free_ts 171885511064 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533 prep_new_page mm/page_alloc.c:1540 [inline] get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311 __alloc_pages+0x256/0x680 mm/page_alloc.c:4569 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page+0x5f/0x160 mm/slub.c:2175 allocate_slab mm/slub.c:2338 [inline] new_slab+0x84/0x2f0 mm/slub.c:2391 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] __do_kmalloc_node mm/slub.c:3965 [inline] __kmalloc+0x2e5/0x4a0 mm/slub.c:3979 kmalloc include/linux/slab.h:632 [inline] kzalloc include/linux/slab.h:749 [inline] ieee802_11_parse_elems_full+0xd5/0x2870 net/mac80211/parse.c:880 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2325 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2332 [inline] ieee80211_inform_bss+0x15f/0x1080 net/mac80211/scan.c:79 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xfeb/0x2250 net/wireless/scan.c:2268 cfg80211_inform_bss_data+0x3e3/0x57d0 net/wireless/scan.c:3067 cfg80211_inform_bss_frame_data+0x3ac/0x700 net/wireless/scan.c:3157 ieee80211_bss_info_update+0x8a5/0xbc0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1099 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline] ieee80211_ibss_rx_queued_mgmt+0x1952/0x2d50 net/mac80211/ibss.c:1605 ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline] ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1659 cfg80211_wiphy_work+0x223/0x260 net/wireless/core.c:437 page last free pid 5169 tgid 5169 stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1140 [inline] free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486 discard_slab mm/slub.c:2437 [inline] __put_partials+0xeb/0x130 mm/slub.c:2906 put_cpu_partial+0x17c/0x250 mm/slub.c:2981 __slab_free+0x2ea/0x3d0 mm/slub.c:4151 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3798 [inline] slab_alloc_node mm/slub.c:3845 [inline] kmem_cache_alloc+0x174/0x340 mm/slub.c:3852 getname_flags+0xbd/0x4f0 fs/namei.c:139 do_sys_openat2+0xd2/0x1d0 fs/open.c:1400 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1432 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Memory state around the buggy address: ffff88807b0df900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807b0df980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88807b0dfa00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88807b0dfa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807b0dfb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================