netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ================================================================== BUG: KASAN: invalid-access in hlist_add_head include/linux/list.h:1025 [inline] BUG: KASAN: invalid-access in binder_add_device+0x14/0x2c drivers/android/binder.c:6932 Write at addr f0f00000043f96c8 by task syz-executor/14396 Pointer tag: [f0], memory tag: [f8] CPU: 0 UID: 0 PID: 14396 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00051-g7a13c14ee59d #0 PREEMPT Hardware name: linux,dummy-virt (DT) Call trace: show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:466 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x78/0x90 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0x108/0x630 mm/kasan/report.c:521 kasan_report+0x88/0xac mm/kasan/report.c:634 report_tag_fault arch/arm64/mm/fault.c:332 [inline] do_tag_recovery arch/arm64/mm/fault.c:344 [inline] __do_kernel_fault+0x170/0x1c8 arch/arm64/mm/fault.c:386 do_bad_area arch/arm64/mm/fault.c:486 [inline] do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:843 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:919 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:432 el1h_64_sync_handler+0xa4/0x120 arch/arm64/kernel/entry-common.c:510 el1h_64_sync+0x6c/0x70 arch/arm64/kernel/entry.S:595 hlist_add_head include/linux/list.h:1025 [inline] (P) binder_add_device+0x14/0x2c drivers/android/binder.c:6932 (P) binderfs_fill_super+0x24c/0x550 drivers/android/binderfs.c:730 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0x70/0xb8 fs/super.c:1299 binderfs_fs_context_get_tree+0x18/0x24 drivers/android/binderfs.c:750 vfs_get_tree+0x28/0xec fs/super.c:1759 do_new_mount fs/namespace.c:3884 [inline] path_mount+0x420/0xad0 fs/namespace.c:4211 do_mount fs/namespace.c:4224 [inline] __do_sys_mount fs/namespace.c:4435 [inline] __se_sys_mount fs/namespace.c:4412 [inline] __arm64_sys_mount+0x1b4/0x210 fs/namespace.c:4412 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151 el0_svc+0x30/0xe0 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x10c/0x138 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:600 The buggy address belongs to the object at fff00000043f96c0 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 8 bytes inside of 192-byte region [fff00000043f96c0, fff00000043f9780) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xfbf00000043f9840 pfn:0x443f9 flags: 0x1ffc00000000200(workingset|node=0|zone=0|lastcpupid=0x7ff|kasantag=0x0) page_type: f5(slab) raw: 01ffc00000000200 fdf0000003001300 ffffc1ffc00c9a50 ffffc1ffc035d6d0 raw: fbf00000043f9840 000000000015000c 00000000f5000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: fff00000043f9400: fe fe fe fe fe fe fe fe f1 f1 f1 f1 f1 f1 f1 f1 fff00000043f9500: f1 f1 f1 fe fa fa fa fa fa fa fa fa fa fa fa fa >fff00000043f9600: f2 f2 f2 f2 f2 f2 f2 f2 f2 f2 f2 fe f8 f8 f8 f8 ^ fff00000043f9700: f8 f8 f8 f8 f8 f8 f8 f8 f0 f0 f0 f0 f0 f0 f0 f0 fff00000043f9800: f0 f0 fe fe fe fe fe fe fe fe fe fe fe fe fe fe ==================================================================