F2FS-fs (loop4): Mounted with checkpoint version = 753bd00b ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x79/0x1f60 kernel/locking/lockdep.c:4925 Read of size 8 at addr ffff888072e3fa08 by task syz-executor.4/629 CPU: 0 PID: 629 Comm: syz-executor.4 Not tainted 6.2.0-rc6-syzkaller-00011-gc0b67534c95c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:306 print_report+0x107/0x1f0 mm/kasan/report.c:417 kasan_report+0xcd/0x100 mm/kasan/report.c:517 __lock_acquire+0x79/0x1f60 kernel/locking/lockdep.c:4925 lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 __update_extent_tree_range+0x3db/0x1e00 fs/f2fs/extent_cache.c:693 __update_extent_cache fs/f2fs/extent_cache.c:962 [inline] f2fs_update_read_extent_cache+0x410/0x580 fs/f2fs/extent_cache.c:1052 f2fs_outplace_write_data+0x1e2/0x380 fs/f2fs/segment.c:3453 f2fs_do_write_data_page+0x122d/0x2570 fs/f2fs/data.c:2745 f2fs_write_single_data_page+0x1162/0x1c90 fs/f2fs/data.c:2863 f2fs_write_cache_pages+0xf6e/0x2330 fs/f2fs/data.c:3115 __f2fs_write_data_pages fs/f2fs/data.c:3265 [inline] f2fs_write_data_pages+0x7d2/0xc30 fs/f2fs/data.c:3292 do_writepages+0x3c3/0x680 mm/page-writeback.c:2581 filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388 __filemap_fdatawrite_range mm/filemap.c:421 [inline] file_write_and_wait_range+0x219/0x320 mm/filemap.c:777 f2fs_do_sync_file+0x611/0x19f0 fs/f2fs/file.c:275 generic_write_sync include/linux/fs.h:2885 [inline] f2fs_file_write_iter+0x659/0x2400 fs/f2fs/file.c:4721 do_iter_write+0x6c2/0xc20 fs/read_write.c:861 vfs_writev fs/read_write.c:934 [inline] do_pwritev+0x200/0x350 fs/read_write.c:1031 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f237148c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2372141168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f23715abf80 RCX: 00007f237148c0c9 RDX: 0000000000000001 RSI: 0000000020001480 RDI: 0000000000000004 RBP: 00007f23714e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc908bdf3f R14: 00007f2372141300 R15: 0000000000022000 Allocated by task 629: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x1b3/0x350 mm/slub.c:3476 f2fs_kmem_cache_alloc_nofail fs/f2fs/f2fs.h:2796 [inline] f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2806 [inline] __grab_extent_tree+0x19b/0x420 fs/f2fs/extent_cache.c:423 f2fs_init_extent_tree+0x20c/0x450 fs/f2fs/extent_cache.c:533 f2fs_new_inode+0xd89/0x1060 fs/f2fs/namei.c:312 __f2fs_tmpfile+0xa5/0x380 fs/f2fs/namei.c:852 f2fs_ioc_start_atomic_write+0x3ec/0x970 fs/f2fs/file.c:2098 __f2fs_ioctl+0x137d/0xb540 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 659: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:518 ____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:1781 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] kmem_cache_free+0x94/0x1d0 mm/slub.c:3809 __destroy_extent_tree+0x6fa/0x880 fs/f2fs/extent_cache.c:1193 f2fs_destroy_extent_tree+0x13/0x20 fs/f2fs/extent_cache.c:1204 f2fs_evict_inode+0x324/0x1310 fs/f2fs/inode.c:789 evict+0x2a4/0x620 fs/inode.c:664 f2fs_abort_atomic_write+0xc7/0x410 fs/f2fs/segment.c:196 f2fs_ioc_abort_atomic_write fs/f2fs/file.c:2182 [inline] __f2fs_ioctl+0x3294/0xb540 fs/f2fs/file.c:4156 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888072e3f9c0 which belongs to the cache f2fs_extent_tree of size 144 The buggy address is located 72 bytes inside of 144-byte region [ffff888072e3f9c0, ffff888072e3fa50) The buggy address belongs to the physical page: page:ffffea0001cb8fc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72e3f flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffff88814668f8c0 ffffea00008cfc40 0000000000000002 raw: 0000000000000000 0000000080130013 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x112c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 27134, tgid 27133 (syz-executor.3), ts 1160868534970, free_ts 1158191369111 prep_new_page mm/page_alloc.c:2531 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549 alloc_slab_page+0xbd/0x190 mm/slub.c:1851 allocate_slab+0x5e/0x3c0 mm/slub.c:1998 new_slab mm/slub.c:2051 [inline] ___slab_alloc+0x782/0xe20 mm/slub.c:3193 __slab_alloc mm/slub.c:3292 [inline] __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x268/0x350 mm/slub.c:3476 f2fs_kmem_cache_alloc_nofail fs/f2fs/f2fs.h:2796 [inline] f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2806 [inline] __grab_extent_tree+0x19b/0x420 fs/f2fs/extent_cache.c:423 f2fs_init_extent_tree+0x20c/0x450 fs/f2fs/extent_cache.c:533 f2fs_new_inode+0xd89/0x1060 fs/f2fs/namei.c:312 f2fs_create+0x191/0x530 fs/f2fs/namei.c:353 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x12ac/0x2dd0 fs/namei.c:3711 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1446 [inline] free_pcp_prepare+0x751/0x780 mm/page_alloc.c:1496 free_unref_page_prepare mm/page_alloc.c:3369 [inline] free_unref_page+0x19/0x4c0 mm/page_alloc.c:3464 discard_slab mm/slub.c:2098 [inline] __unfreeze_partials+0x1a5/0x1e0 mm/slub.c:2637 put_cpu_partial+0x106/0x170 mm/slub.c:2713 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x1b3/0x350 mm/slub.c:3476 getname_flags+0xb8/0x4e0 fs/namei.c:139 vfs_fstatat fs/stat.c:269 [inline] __do_sys_newfstatat fs/stat.c:440 [inline] __se_sys_newfstatat+0xcb/0x7d0 fs/stat.c:434 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff888072e3f900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888072e3f980: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb >ffff888072e3fa00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc ^ ffff888072e3fa80: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888072e3fb00: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb ==================================================================