================================================================== 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 4028 at addr ffff88805d9c4000 by task syz-executor.4/6540 CPU: 0 PID: 6540 Comm: syz-executor.4 Not tainted 6.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 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_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: 0033:0x7f92be87d0a9 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:00007f92bf66f0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f92be9b3f80 RCX: 00007f92be87d0a9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000020000040 RBP: 00007f92be8ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f92be9b3f80 R15: 00007ffc9649a4f8 Allocated by task 6540: 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:4122 [inline] __kmalloc_noprof+0x1f9/0x400 mm/slub.c:4135 kmalloc_noprof include/linux/slab.h:664 [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 __vfs_setxattr+0x46a/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 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_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 ffff88805d9c4000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 0 bytes inside of allocated 536-byte region [ffff88805d9c4000, ffff88805d9c4218) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d9c0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffefff(slab) raw: 00fff00000000040 ffff888015041dc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 00fff00000000040 ffff888015041dc0 dead000000000100 dead000000000122 head: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 00fff00000000003 ffffea0001767001 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 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 2476, tgid 2476 (kworker/u8:10), ts 100548786398, free_ts 100448223312 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1468 prep_new_page mm/page_alloc.c:1476 [inline] get_page_from_freelist+0x2e43/0x2f00 mm/page_alloc.c:3420 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4678 __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:2265 allocate_slab+0x5a/0x2f0 mm/slub.c:2428 new_slab mm/slub.c:2481 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3667 __slab_alloc+0x58/0xa0 mm/slub.c:3757 __slab_alloc_node mm/slub.c:3810 [inline] slab_alloc_node mm/slub.c:3989 [inline] __do_kmalloc_node mm/slub.c:4121 [inline] __kmalloc_noprof+0x257/0x400 mm/slub.c:4135 kmalloc_noprof include/linux/slab.h:664 [inline] kzalloc_noprof include/linux/slab.h:778 [inline] ieee802_11_parse_elems_full+0xd5/0x2870 net/mac80211/parse.c:880 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2332 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2339 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1574 [inline] ieee80211_ibss_rx_queued_mgmt+0x4c8/0x2d70 net/mac80211/ibss.c:1605 ieee80211_iface_process_skb net/mac80211/iface.c:1603 [inline] ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1657 cfg80211_wiphy_work+0x223/0x260 net/wireless/core.c:437 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 page last free pid 5117 tgid 5117 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1088 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2583 discard_slab mm/slub.c:2527 [inline] __put_partials+0xeb/0x130 mm/slub.c:2995 put_cpu_partial+0x17c/0x250 mm/slub.c:3070 __slab_free+0x2ea/0x3d0 mm/slub.c:4307 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9e/0x140 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:3941 [inline] slab_alloc_node mm/slub.c:4001 [inline] __do_kmalloc_node mm/slub.c:4121 [inline] __kmalloc_node_noprof+0x1d2/0x440 mm/slub.c:4129 kmalloc_node_noprof include/linux/slab.h:681 [inline] kvmalloc_node_noprof+0x72/0x190 mm/util.c:634 xt_alloc_table_info+0x3d/0xa0 net/netfilter/x_tables.c:1193 do_replace net/ipv6/netfilter/ip6_tables.c:1143 [inline] do_ip6t_set_ctl+0xba0/0x1270 net/ipv6/netfilter/ip6_tables.c:1644 nf_setsockopt+0x297/0x2c0 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x3b1/0x720 net/socket.c:2312 __sys_setsockopt+0x1ae/0x250 net/socket.c:2335 __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 Memory state around the buggy address: ffff88805d9c4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88805d9c4180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88805d9c4200: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88805d9c4280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88805d9c4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================