loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128
Buffer I/O error on dev loop0, logical block 3245768, async page read
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BUG: KASAN: out-of-bounds in sysv_new_inode+0xd8c/0xf04 fs/sysv/ialloc.c:153
Read of size 2 at addr ffff0000e10b91ce by task syz.0.6/4377

CPU: 1 PID: 4377 Comm: syz.0.6 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x88/0x220 mm/kasan/report.c:316
 print_report+0x50/0x68 mm/kasan/report.c:427
 kasan_report+0xa8/0x100 mm/kasan/report.c:531
 __asan_report_load2_noabort+0x2c/0x38 mm/kasan/report_generic.c:349
 sysv_new_inode+0xd8c/0xf04 fs/sysv/ialloc.c:153
 sysv_symlink+0xa4/0x174 fs/sysv/namei.c:80
 vfs_symlink+0x238/0x3b0 fs/namei.c:4471
 do_symlinkat+0x174/0x350 fs/namei.c:4500
 __do_sys_symlinkat fs/namei.c:4517 [inline]
 __se_sys_symlinkat fs/namei.c:4514 [inline]
 __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4514
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the physical page:
page:00000000b83ac1dd refcount:2 mapcount:1 mapping:0000000000000000 index:0x20015 pfn:0x1210b9
memcg:ffff0000d91bc000
anon flags: 0x5ffd800000a0816(referenced|uptodate|lru|arch_1|mappedtodisk|swapbacked|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffd800000a0816 fffffc0003842e08 fffffc0003842e88 ffff0000f052eee1
raw: 0000000000020015 0000000000000000 00000001ffffffff ffff0000d91bc000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e10b9080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000e10b9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000e10b9180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                 ^
 ffff0000e10b9200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000e10b9280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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