================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:232 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:733 Read of size 48 at addr ffff0000c72c5b30 by task syz-executor.5/23341 CPU: 0 PID: 23341 Comm: syz-executor.5 Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x174/0x514 mm/kasan/report.c:475 kasan_report+0xd8/0x138 mm/kasan/report.c:588 kasan_check_range+0x254/0x294 mm/kasan/generic.c:187 __asan_memcpy+0x3c/0x84 mm/kasan/shadow.c:105 ntfs_list_ea fs/ntfs3/xattr.c:232 [inline] ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:733 vfs_listxattr fs/xattr.c:494 [inline] listxattr+0x108/0x368 fs/xattr.c:841 path_listxattr fs/xattr.c:865 [inline] __do_sys_listxattr fs/xattr.c:877 [inline] __se_sys_listxattr fs/xattr.c:874 [inline] __arm64_sys_listxattr+0x13c/0x21c fs/xattr.c:874 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Allocated by task 23341: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x7c mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:511 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc+0xcc/0x1b8 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] ntfs_read_ea+0x3c0/0x808 fs/ntfs3/xattr.c:118 ntfs_list_ea fs/ntfs3/xattr.c:204 [inline] ntfs_listxattr+0x14c/0x50c fs/ntfs3/xattr.c:733 vfs_listxattr fs/xattr.c:494 [inline] listxattr+0x108/0x368 fs/xattr.c:841 path_listxattr fs/xattr.c:865 [inline] __do_sys_listxattr fs/xattr.c:877 [inline] __se_sys_listxattr fs/xattr.c:874 [inline] __arm64_sys_listxattr+0x13c/0x21c fs/xattr.c:874 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Last potentially related work creation: kasan_save_stack+0x40/0x6c mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:492 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:502 kvfree_call_rcu+0xac/0x674 kernel/rcu/tree.c:3400 sctp_bind_addr_clean net/sctp/bind_addr.c:131 [inline] sctp_bind_addr_free+0x114/0x160 net/sctp/bind_addr.c:140 sctp_association_free+0x230/0x6e0 net/sctp/associola.c:356 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:944 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1330 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x31fc/0x4e80 net/sctp/sm_sideeffect.c:1169 sctp_assoc_bh_rcv+0x380/0x710 net/sctp/associola.c:1051 sctp_inq_push+0x19c/0x1c0 net/sctp/inqueue.c:80 sctp_backlog_rcv+0x150/0x354 net/sctp/input.c:331 sk_backlog_rcv include/net/sock.h:1121 [inline] __release_sock+0x1a8/0x408 net/core/sock.c:2968 release_sock+0x68/0x1b8 net/core/sock.c:3534 sctp_wait_for_connect+0x2f0/0x564 net/sctp/socket.c:9342 __sctp_connect+0x918/0xb98 net/sctp/socket.c:1246 sctp_connect net/sctp/socket.c:4811 [inline] sctp_inet_connect+0x124/0x1dc net/sctp/socket.c:4826 __sys_connect_file net/socket.c:2046 [inline] __sys_connect+0x268/0x290 net/socket.c:2063 __do_sys_connect net/socket.c:2073 [inline] __se_sys_connect net/socket.c:2070 [inline] __arm64_sys_connect+0x7c/0x94 net/socket.c:2070 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 The buggy address belongs to the object at ffff0000c72c5b00 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 48 bytes inside of allocated 60-byte region [ffff0000c72c5b00, ffff0000c72c5b3c) The buggy address belongs to the physical page: page:00000000aa2d176a refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1072c5 flags: 0x5ffc00000000800(slab|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 05ffc00000000800 ffff0000c0001640 fffffc000339c500 dead000000000002 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c72c5a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff0000c72c5a80: 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc fc >ffff0000c72c5b00: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff0000c72c5b80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff0000c72c5c00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================