loop0: 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 3970 at addr ffff88803ec76800 by task syz-executor.0/22437 CPU: 1 PID: 22437 Comm: syz-executor.0 Not tainted 6.8.0-rc2-next-20240202-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 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_security_setxattr+0x40/0x60 fs/hfsplus/xattr_security.c:31 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:201 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:235 vfs_setxattr+0x221/0x430 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x25d/0x2f0 fs/xattr.c:653 path_setxattr+0x1c0/0x2a0 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:684 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fbb09e7dda9 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:00007fbb0ab5c0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007fbb09fabf80 RCX: 00007fbb09e7dda9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000240 RBP: 00007fbb09eca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fbb09fabf80 R15: 00007fffe1738ec8 Allocated by task 22437: 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:3982 [inline] __kmalloc+0x231/0x4a0 mm/slub.c:3995 kmalloc include/linux/slab.h:594 [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_security_setxattr+0x40/0x60 fs/hfsplus/xattr_security.c:31 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:201 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:235 vfs_setxattr+0x221/0x430 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x25d/0x2f0 fs/xattr.c:653 path_setxattr+0x1c0/0x2a0 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __x64_sys_setxattr+0xbb/0xd0 fs/xattr.c:684 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 The buggy address belongs to the object at ffff88803ec76800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 0 bytes inside of allocated 536-byte region [ffff88803ec76800, ffff88803ec76a18) The buggy address belongs to the physical page: page:ffffea0000fb1c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3ec70 head:ffffea0000fb1c00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 ksm flags: 0xfff80000000840(slab|head|node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffffff() raw: 00fff80000000840 ffff888014c41dc0 ffffea0001b1fa00 dead000000000003 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 61, tgid 61 (kworker/u4:4), ts 172115112513, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1539 prep_new_page mm/page_alloc.c:1546 [inline] get_page_from_freelist+0x34eb/0x3680 mm/page_alloc.c:3353 __alloc_pages+0x256/0x680 mm/page_alloc.c:4609 __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:2191 allocate_slab mm/slub.c:2354 [inline] new_slab+0x84/0x2f0 mm/slub.c:2407 ___slab_alloc+0xc73/0x1260 mm/slub.c:3541 __slab_alloc mm/slub.c:3626 [inline] __slab_alloc_node mm/slub.c:3679 [inline] slab_alloc_node mm/slub.c:3851 [inline] __do_kmalloc_node mm/slub.c:3981 [inline] __kmalloc+0x2e3/0x4a0 mm/slub.c:3995 kmalloc include/linux/slab.h:594 [inline] kzalloc include/linux/slab.h:711 [inline] ieee802_11_parse_elems_full+0xe7/0x2470 net/mac80211/util.c:1628 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2291 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2298 [inline] ieee80211_inform_bss+0x146/0x1060 net/mac80211/scan.c:79 rdev_inform_bss+0x11f/0x480 net/wireless/rdev-ops.h:418 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:3037 [inline] cfg80211_inform_bss_frame_data+0x11af/0x1d60 net/wireless/scan.c:3068 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline] ieee80211_ibss_rx_queued_mgmt+0x1924/0x2cd0 net/mac80211/ibss.c:1604 ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline] ieee80211_iface_work+0x809/0xd90 net/mac80211/iface.c:1643 cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437 process_one_work kernel/workqueue.c:3049 [inline] process_scheduled_works+0x913/0x14f0 kernel/workqueue.c:3125 page_owner free stack trace missing Memory state around the buggy address: ffff88803ec76900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803ec76980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88803ec76a00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88803ec76a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88803ec76b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================