RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
==================================================================
BUG: KASAN: use-after-free in f2fs_truncate_data_blocks_range+0x826/0xeb0 fs/f2fs/file.c:635
Read of size 4 at addr ffff88811e89a000 by task syz.2.17/456
CPU: 0 PID: 456 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0xf1/0x140 mm/kasan/report.c:444
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
f2fs_truncate_data_blocks_range+0x826/0xeb0 fs/f2fs/file.c:635
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
Allocated by task 412:
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:433 [inline]
____kasan_kmalloc mm/kasan/common.c:512 [inline]
__kasan_kmalloc+0xda/0x110 mm/kasan/common.c:521
kasan_kmalloc include/linux/kasan.h:227 [inline]
__kmalloc+0x13d/0x2c0 mm/slub.c:4436
__kmalloc_node include/linux/slab.h:487 [inline]
kmalloc_node include/linux/slab.h:642 [inline]
kvmalloc_node+0x211/0x320 mm/util.c:621
kvmalloc include/linux/mm.h:862 [inline]
kvzalloc include/linux/mm.h:870 [inline]
netif_alloc_rx_queues net/core/dev.c:10219 [inline]
alloc_netdev_mqs+0x82a/0xc90 net/core/dev.c:10986
ip6gre_init_net+0xff/0x340 net/ipv6/ip6_gre.c:1618
ops_init+0x1ba/0x4a0 net/core/net_namespace.c:138
setup_net+0x34d/0xaa0 net/core/net_namespace.c:332
copy_net_ns+0x355/0x5c0 net/core/net_namespace.c:476
create_new_namespaces+0x3a2/0x660 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x120/0x170 kernel/nsproxy.c:226
ksys_unshare+0x4ba/0x7c0 kernel/fork.c:3242
__do_sys_unshare kernel/fork.c:3316 [inline]
__se_sys_unshare kernel/fork.c:3314 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3314
x64_sys_call+0x442/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:273
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 8:
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:365
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
kasan_slab_free include/linux/kasan.h:193 [inline]
slab_free_hook mm/slub.c:1728 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754
slab_free mm/slub.c:3526 [inline]
kfree+0xc4/0x270 mm/slub.c:4588
kvfree+0x35/0x40 mm/util.c:661
netif_free_rx_queues net/core/dev.c:10255 [inline]
free_netdev+0x16d/0x450 net/core/dev.c:11039
netdev_run_todo+0x7c8/0x9b0 net/core/dev.c:10727
rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112
ip6gre_exit_batch_net+0x5b2/0x600 net/ipv6/ip6_gre.c:1658
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x60a/0xae0 net/core/net_namespace.c:599
process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
kthread+0x411/0x500 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
The buggy address belongs to the object at ffff88811e89a000
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 0 bytes inside of
256-byte region [ffff88811e89a000, ffff88811e89a100)
The buggy address belongs to the page:
page:ffffea00047a2680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e89a
head:ffffea00047a2680 order:1 compound_mapcount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042d80
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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 412, ts 45268901625, free_ts 36533275594
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605
prep_new_page+0x1c/0x110 mm/page_alloc.c:2611
get_page_from_freelist+0x2d3a/0x2dc0 mm/page_alloc.c:4485
__alloc_pages+0x1a2/0x460 mm/page_alloc.c:5822
alloc_slab_page mm/slub.c:-1 [inline]
allocate_slab mm/slub.c:1937 [inline]
new_slab+0xa1/0x4d0 mm/slub.c:2000
___slab_alloc+0x381/0x810 mm/slub.c:3033
__slab_alloc+0x49/0x90 mm/slub.c:3120
slab_alloc_node mm/slub.c:3211 [inline]
slab_alloc mm/slub.c:3255 [inline]
__kmalloc+0x16a/0x2c0 mm/slub.c:4432
kmalloc include/linux/slab.h:624 [inline]
kzalloc include/linux/slab.h:750 [inline]
new_dir fs/proc/proc_sysctl.c:961 [inline]
get_subdir fs/proc/proc_sysctl.c:1006 [inline]
__register_sysctl_table+0xa38/0x1250 fs/proc/proc_sysctl.c:1355
register_net_sysctl+0x238/0x250 net/sysctl_net.c:169
__addrconf_sysctl_register+0x277/0x3e0 net/ipv6/addrconf.c:7164
addrconf_sysctl_register+0x147/0x1a0 net/ipv6/addrconf.c:7211
ipv6_add_dev+0xc03/0x1150 net/ipv6/addrconf.c:456
addrconf_notify+0x582/0xde0 net/ipv6/addrconf.c:3600
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0x90/0x100 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2070 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2082 [inline]
call_netdevice_notifiers+0x119/0x190 net/core/dev.c:2096
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1472 [inline]
free_pcp_prepare mm/page_alloc.c:1544 [inline]
free_unref_page_prepare+0x542/0x550 mm/page_alloc.c:3534
free_unref_page+0xae/0x540 mm/page_alloc.c:3616
__put_single_page mm/swap.c:98 [inline]
__put_page+0xad/0xe0 mm/swap.c:129
put_page include/linux/mm.h:1306 [inline]
anon_pipe_buf_release+0x183/0x200 fs/pipe.c:137
pipe_buf_release include/linux/pipe_fs_i.h:219 [inline]
pipe_read+0x53b/0x1010 fs/pipe.c:323
call_read_iter include/linux/fs.h:2206 [inline]
new_sync_read fs/read_write.c:404 [inline]
vfs_read+0x6c9/0xc40 fs/read_write.c:485
ksys_read+0x149/0x250 fs/read_write.c:623
__do_sys_read fs/read_write.c:633 [inline]
__se_sys_read fs/read_write.c:631 [inline]
__x64_sys_read+0x7b/0x90 fs/read_write.c:631
x64_sys_call+0x96d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Memory state around the buggy address:
ffff88811e899f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88811e899f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88811e89a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88811e89a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88811e89a100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
F2FS-fs (loop2): access invalid blkaddr:467263488
CPU: 1 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 0 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:8
CPU: 0 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:4104126741
CPU: 0 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:467263488
CPU: 0 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:4294936705
CPU: 1 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:412
CPU: 1 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
F2FS-fs (loop2): access invalid blkaddr:3831496974
CPU: 1 PID: 456 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
f2fs_is_valid_blkaddr+0xca0/0x12a0 fs/f2fs/checkpoint.c:205
f2fs_truncate_data_blocks_range+0x67c/0xeb0 fs/f2fs/file.c:653
f2fs_truncate_data_blocks+0xf3/0x130 fs/f2fs/file.c:692
truncate_dnode fs/f2fs/node.c:950 [inline]
f2fs_truncate_inode_blocks+0x64c/0xfa0 fs/f2fs/node.c:1169
f2fs_do_truncate_blocks+0x833/0xb70 fs/f2fs/file.c:781
f2fs_truncate_blocks+0x10e/0x300 fs/f2fs/file.c:809
f2fs_truncate+0x1d7/0x3d0 fs/f2fs/file.c:861
f2fs_setattr+0xaca/0x11b0 fs/f2fs/file.c:1039
notify_change+0xbca/0xe90 fs/attr.c:505
do_truncate+0x1ac/0x240 fs/open.c:66
handle_truncate fs/namei.c:3273 [inline]
do_open fs/namei.c:3620 [inline]
path_openat+0x2895/0x2f20 fs/namei.c:3750
do_filp_open+0x1e2/0x410 fs/namei.c:3777
do_sys_openat2+0x15e/0x7f0 fs/open.c:1236
do_sys_open fs/open.c:1252 [inline]
__do_sys_open fs/open.c:1260 [inline]
__se_sys_open fs/open.c:1256 [inline]
__x64_sys_open+0x11c/0x140 fs/open.c:1256
x64_sys_call+0x3fc/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:3
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5a825a4379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a82409028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f5a827dffa0 RCX: 00007f5a825a4379
RDX: 0000000000000040 RSI: 0000000000141242 RDI: 0000200000000140
RBP: 00007f5a82637d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a827e0038 R14: 00007f5a827dffa0 R15: 00007ffc616f0698
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