RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 ================================================================== BUG: KASAN: use-after-free in f2fs_truncate_data_blocks_range+0x829/0xec0 fs/f2fs/file.c:639 Read of size 4 at addr ffff888118d88000 by task syz.2.17/482 CPU: 0 PID: 482 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0xe2/0x130 mm/kasan/report.c:452 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308 f2fs_truncate_data_blocks_range+0x829/0xec0 fs/f2fs/file.c:639 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 Allocated by task 94: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:430 [inline] __kasan_slab_alloc+0xbd/0xf0 mm/kasan/common.c:463 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:580 slab_alloc_node mm/slub.c:2952 [inline] slab_alloc mm/slub.c:2960 [inline] kmem_cache_alloc+0x165/0x2e0 mm/slub.c:2965 getname_flags+0xb9/0x500 fs/namei.c:141 getname+0x19/0x20 fs/namei.c:212 do_sys_openat2+0xd9/0x6d0 fs/open.c:1213 do_sys_open fs/open.c:1235 [inline] __do_sys_openat fs/open.c:1251 [inline] __se_sys_openat fs/open.c:1246 [inline] __x64_sys_openat+0x136/0x160 fs/open.c:1246 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 94: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4a/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1600 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626 slab_free mm/slub.c:3208 [inline] kmem_cache_free+0x100/0x2d0 mm/slub.c:3224 putname+0xfe/0x150 fs/namei.c:262 do_sys_openat2+0x207/0x6d0 fs/open.c:1228 do_sys_open fs/open.c:1235 [inline] __do_sys_openat fs/open.c:1251 [inline] __se_sys_openat fs/open.c:1246 [inline] __x64_sys_openat+0x136/0x160 fs/open.c:1246 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff888118d88000 which belongs to the cache names_cache of size 4096 The buggy address is located 0 bytes inside of 4096-byte region [ffff888118d88000, ffff888118d89000) The buggy address belongs to the page: page:ffffea0004636200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x118d88 head:ffffea0004636200 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff88810018be00 raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 107, ts 5779423266, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x179/0x180 mm/page_alloc.c:2462 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5370 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1813 [inline] new_slab+0x84/0x3f0 mm/slub.c:1874 new_slab_objects mm/slub.c:2632 [inline] ___slab_alloc+0x2a6/0x450 mm/slub.c:2796 __slab_alloc+0x63/0xa0 mm/slub.c:2836 slab_alloc_node mm/slub.c:2918 [inline] slab_alloc mm/slub.c:2960 [inline] kmem_cache_alloc+0x1af/0x2e0 mm/slub.c:2965 getname_flags+0xb9/0x500 fs/namei.c:141 user_path_at_empty+0x2f/0x50 fs/namei.c:2748 user_path_at include/linux/namei.h:60 [inline] vfs_statx+0xff/0x520 fs/stat.c:193 vfs_fstatat fs/stat.c:215 [inline] __do_sys_newfstatat fs/stat.c:383 [inline] __se_sys_newfstatat+0xc6/0x340 fs/stat.c:377 __x64_sys_newfstatat+0x9b/0xb0 fs/stat.c:377 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb page_owner free stack trace missing Memory state around the buggy address: ffff888118d87f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888118d87f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888118d88000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888118d88080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888118d88100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== F2FS-fs (loop2): access invalid blkaddr:404148096 CPU: 0 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:4294936705 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:94 CPU: 0 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:3611295946 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1937339183 CPU: 0 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1986356271 CPU: 0 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1936024425 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1919514159 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1818326388 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1869373999 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1815047011 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:846229359 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:795962671 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): access invalid blkaddr:1885548336 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 f2fs_is_valid_blkaddr+0xc8c/0x1360 fs/f2fs/checkpoint.c:205 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): Inconsistent error blkaddr:12405, sit bitmap:0 CPU: 1 PID: 482 Comm: syz.2.17 Tainted: G B syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 dump_stack+0x15/0x1c lib/dump_stack.c:135 __is_bitmap_valid fs/f2fs/checkpoint.c:166 [inline] f2fs_is_valid_blkaddr+0xc49/0x1360 fs/f2fs/checkpoint.c:208 f2fs_truncate_data_blocks_range+0x67f/0xec0 fs/f2fs/file.c:657 f2fs_truncate_data_blocks+0xf7/0x140 fs/f2fs/file.c:696 truncate_dnode fs/f2fs/node.c:953 [inline] f2fs_truncate_inode_blocks+0x63b/0xfb0 fs/f2fs/node.c:1172 f2fs_do_truncate_blocks+0x6bc/0x9a0 fs/f2fs/file.c:785 f2fs_truncate_blocks+0x115/0x310 fs/f2fs/file.c:813 f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:865 f2fs_setattr+0x981/0x1010 fs/f2fs/file.c:1036 notify_change+0xab3/0xe40 fs/attr.c:410 do_truncate+0x186/0x210 fs/open.c:65 handle_truncate fs/namei.c:3062 [inline] do_open fs/namei.c:3403 [inline] path_openat+0x2aab/0x3160 fs/namei.c:3517 do_filp_open+0x1b3/0x3e0 fs/namei.c:3544 do_sys_openat2+0x14c/0x6d0 fs/open.c:1219 do_sys_open fs/open.c:1235 [inline] __do_sys_open fs/open.c:1243 [inline] __se_sys_open fs/open.c:1239 [inline] __x64_sys_open+0x11c/0x140 fs/open.c:1239 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4419e9cec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4419d0d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f441a0f3fa0 RCX: 00007f4419e9cec9 RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140 RBP: 00007f4419f1ff91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f441a0f4038 R14: 00007f441a0f3fa0 R15: 00007ffe9ae7aaf8 F2FS-fs (loop2): Inconsistent i_blocks, ino:7, iblocks:0, sectors:8 F2FS-fs (loop2): dec_valid_node_count: inconsistent i_blocks, ino:7, iblocks:0