netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 loop0: detected capacity change from 0 to 2048 UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) ================================================================== BUG: KASAN: slab-out-of-bounds in udf_close_lvid+0x6a4/0x9a0 fs/udf/super.c:2073 Write of size 1 at addr ffff88807b5a2778 by task syz-executor204/3545 CPU: 0 PID: 3545 Comm: syz-executor204 Not tainted 6.1.87-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 udf_close_lvid+0x6a4/0x9a0 fs/udf/super.c:2073 udf_put_super+0xc9/0x160 fs/udf/super.c:2360 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1459 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa73/0x26a0 kernel/exit.c:869 do_group_exit+0x202/0x2b0 kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f51b877f4a9 Code: Unable to access opcode bytes at 0x7f51b877f47f. RSP: 002b:00007ffdfdd1f898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f51b877f4a9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f51b880b3b0 R08: ffffffffffffffb0 R09: 0000000000000003 R10: 0000000000007a00 R11: 0000000000000246 R12: 00007f51b880b3b0 R13: 0000000000000000 R14: 00007f51b880e1e0 R15: 00007f51b87494d0 Allocated by task 3429: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 kmem_cache_alloc_bulk+0x3a2/0x4d0 mm/slub.c:3854 mt_alloc_bulk lib/maple_tree.c:157 [inline] mas_alloc_nodes+0x3df/0x800 lib/maple_tree.c:1299 mas_node_count_gfp lib/maple_tree.c:1359 [inline] mas_preallocate+0x12d/0x350 lib/maple_tree.c:5805 __vma_adjust+0x8df/0x1f40 mm/mmap.c:724 __split_vma+0x36e/0x530 do_mas_align_munmap+0x41c/0x15f0 mm/mmap.c:2470 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640 __vm_munmap+0x268/0x370 mm/mmap.c:2917 __do_sys_munmap mm/mmap.c:2942 [inline] __se_sys_munmap mm/mmap.c:2939 [inline] __x64_sys_munmap+0x5c/0x70 mm/mmap.c:2939 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Freed by task 3429: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] kmem_cache_free+0x292/0x510 mm/slub.c:3683 rcu_do_batch kernel/rcu/tree.c:2296 [inline] rcu_core+0xad5/0x1810 kernel/rcu/tree.c:2556 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486 call_rcu+0x163/0xa10 kernel/rcu/tree.c:2844 mas_wr_node_store lib/maple_tree.c:4219 [inline] mas_wr_modify+0x2a65/0x4d80 lib/maple_tree.c:4418 mas_store_prealloc+0x304/0x460 lib/maple_tree.c:5787 do_mas_align_munmap+0xdaf/0x15f0 mm/mmap.c:2564 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640 __vm_munmap+0x268/0x370 mm/mmap.c:2917 __do_sys_munmap mm/mmap.c:2942 [inline] __se_sys_munmap mm/mmap.c:2939 [inline] __x64_sys_munmap+0x5c/0x70 mm/mmap.c:2939 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff88807b5a2600 which belongs to the cache maple_node of size 256 The buggy address is located 120 bytes to the right of 256-byte region [ffff88807b5a2600, ffff88807b5a2700) The buggy address belongs to the physical page: page:ffffea0001ed6880 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7b5a2 head:ffffea0001ed6880 order:1 compound_mapcount:0 compound_pincount:0 flags: 0xfff80000010200(slab|head|node=0|zone=1|lastcpupid=0xfff) raw: 00fff80000010200 0000000000000000 dead000000000122 ffff8880124cd000 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3429, tgid 3429 (sshd), ts 45775306229, free_ts 33028816879 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513 prep_new_page mm/page_alloc.c:2520 [inline] get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5547 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 kmem_cache_alloc_bulk+0x19d/0x4d0 mm/slub.c:3830 mt_alloc_bulk lib/maple_tree.c:157 [inline] mas_alloc_nodes+0x3df/0x800 lib/maple_tree.c:1299 mas_node_count_gfp lib/maple_tree.c:1359 [inline] mas_preallocate+0x12d/0x350 lib/maple_tree.c:5805 __vma_adjust+0x8df/0x1f40 mm/mmap.c:724 __split_vma+0x36e/0x530 do_mas_align_munmap+0x41c/0x15f0 mm/mmap.c:2470 do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640 __vm_munmap+0x268/0x370 mm/mmap.c:2917 __do_sys_munmap mm/mmap.c:2942 [inline] __se_sys_munmap mm/mmap.c:2939 [inline] __x64_sys_munmap+0x5c/0x70 mm/mmap.c:2939 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1440 [inline] free_pcp_prepare mm/page_alloc.c:1490 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422 getname_flags+0xb8/0x4f0 fs/namei.c:139 do_sys_openat2+0xd2/0x500 fs/open.c:1312 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Memory state around the buggy address: ffff88807b5a2600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807b5a2680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88807b5a2700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88807b5a2780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807b5a2800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================