loop1: detected capacity change from 0 to 1024 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=35 sclass=netlink_route_socket pid=14767 comm=syz-executor.1 ================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x1e3/0x240 fs/hfsplus/bnode.c:37 Read of size 8 at addr ffff888054b14298 by task syz-executor.1/14767 CPU: 0 PID: 14767 Comm: syz-executor.1 Not tainted 6.9.0-rc6-syzkaller-00053-g0106679839f7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 hfsplus_bnode_read+0x1e3/0x240 fs/hfsplus/bnode.c:37 hfsplus_bnode_read_key+0x14d/0x230 fs/hfsplus/bnode.c:70 hfsplus_brec_insert+0x8b3/0xc50 fs/hfsplus/brec.c:141 hfsplus_create_attr+0x3d0/0x4a0 fs/hfsplus/attributes.c:252 __hfsplus_setxattr+0x519/0x2180 fs/hfsplus/xattr.c:345 hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:434 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:200 __vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:234 __vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295 vfs_setxattr+0x146/0x350 fs/xattr.c:321 do_setxattr+0x146/0x170 fs/xattr.c:629 setxattr+0x15d/0x180 fs/xattr.c:652 path_setxattr+0x179/0x1e0 fs/xattr.c:671 __do_sys_setxattr fs/xattr.c:687 [inline] __se_sys_setxattr fs/xattr.c:683 [inline] __x64_sys_setxattr+0xc4/0x160 fs/xattr.c:683 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8cade7dea9 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:00007f8cad9ff0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f8cadfabf80 RCX: 00007f8cade7dea9 RDX: 00000000200002c0 RSI: 0000000020000280 RDI: 00000000200000c0 RBP: 00007f8cadeca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8cadfabf80 R15: 00007ffe34d8a778 Allocated by task 14767: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:3966 [inline] __kmalloc+0x1f9/0x440 mm/slub.c:3979 kmalloc include/linux/slab.h:632 [inline] kzalloc include/linux/slab.h:749 [inline] __hfs_bnode_create+0x108/0x870 fs/hfsplus/bnode.c:409 hfsplus_bnode_find+0x2c8/0xcb0 fs/hfsplus/bnode.c:486 hfsplus_brec_find+0x2b9/0x520 fs/hfsplus/bfind.c:183 hfsplus_find_attr+0xe6/0x190 fs/hfsplus/attributes.c:153 hfsplus_attr_exists+0x14d/0x200 fs/hfsplus/attributes.c:182 __hfsplus_setxattr+0x4c6/0x2180 fs/hfsplus/xattr.c:336 hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:434 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:200 __vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:234 __vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295 vfs_setxattr+0x146/0x350 fs/xattr.c:321 do_setxattr+0x146/0x170 fs/xattr.c:629 setxattr+0x15d/0x180 fs/xattr.c:652 path_setxattr+0x179/0x1e0 fs/xattr.c:671 __do_sys_setxattr fs/xattr.c:687 [inline] __se_sys_setxattr fs/xattr.c:683 [inline] __x64_sys_setxattr+0xc4/0x160 fs/xattr.c:683 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888054b14200 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 0 bytes to the right of allocated 152-byte region [ffff888054b14200, ffff888054b14298) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x54b14 anon flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000800 ffff888015042a00 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080100010 00000001ffffffff 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 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 7164, tgid -778005198 (syz-executor.2), ts 7172, free_ts 88908139721 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d4/0x350 mm/page_alloc.c:1534 prep_new_page mm/page_alloc.c:1541 [inline] get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3317 __alloc_pages+0x22b/0x2460 mm/page_alloc.c:4575 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0xcc/0x3a0 mm/slub.c:2391 ___slab_alloc+0x66d/0x1790 mm/slub.c:3525 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3610 __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmalloc_trace+0x2fb/0x330 mm/slub.c:3992 kmalloc include/linux/slab.h:628 [inline] __iomap_dio_rw+0x298/0x1c70 fs/iomap/direct-io.c:564 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:749 ext4_dio_write_iter fs/ext4/file.c:577 [inline] ext4_file_write_iter+0x136b/0x1a40 fs/ext4/file.c:696 call_write_iter include/linux/fs.h:2110 [inline] iter_file_splice_write+0x906/0x10b0 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x19b/0x6d0 fs/splice.c:1164 splice_direct_to_actor+0x346/0xa40 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x17e/0x250 fs/splice.c:1233 do_sendfile+0xaa8/0xdb0 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1348 page last free pid 7175 tgid 7174 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] free_unref_page_prepare+0x527/0xb10 mm/page_alloc.c:2347 free_unref_page+0x33/0x3c0 mm/page_alloc.c:2487 tlb_batch_list_free mm/mmu_gather.c:159 [inline] tlb_finish_mmu+0x237/0x7b0 mm/mmu_gather.c:468 exit_mmap+0x3da/0xb90 mm/mmap.c:3280 __mmput+0x12a/0x4d0 kernel/fork.c:1346 mmput+0x62/0x70 kernel/fork.c:1368 exit_mm kernel/exit.c:569 [inline] do_exit+0x999/0x2c10 kernel/exit.c:865 do_group_exit+0xd3/0x2a0 kernel/exit.c:1027 get_signal+0x2616/0x2710 kernel/signal.c:2911 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x14a/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888054b14180: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ffff888054b14200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888054b14280: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888054b14300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888054b14380: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================