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BUG: KASAN: stack-out-of-bounds in iov_iter_revert lib/iov_iter.c:1144 [inline]
BUG: KASAN: stack-out-of-bounds in iov_iter_revert+0x736/0x870 lib/iov_iter.c:1089
Read of size 8 at addr ffffc90000ab7768 by task syz-executor.0/440

CPU: 0 PID: 440 Comm: syz-executor.0 Not tainted 5.10.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x81/0xac lib/dump_stack.c:118
 print_address_description.constprop.0+0x24/0x150 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report.cold+0x82/0xdb mm/kasan/report.c:436
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 iov_iter_revert lib/iov_iter.c:1144 [inline]
 iov_iter_revert+0x736/0x870 lib/iov_iter.c:1089
 io_write+0x367/0xab0 fs/io_uring.c:3617
 io_issue_sqe+0x141/0x4170 fs/io_uring.c:6032
 __io_queue_sqe+0x1e6/0xb60 fs/io_uring.c:6354
 io_queue_sqe+0x5eb/0xfc0 fs/io_uring.c:6420
 io_submit_sqe fs/io_uring.c:6489 [inline]
 io_submit_sqes+0x10cd/0x27a0 fs/io_uring.c:6717
 __do_sys_io_uring_enter+0xe32/0x1780 fs/io_uring.c:9113
 __se_sys_io_uring_enter fs/io_uring.c:9055 [inline]
 __x64_sys_io_uring_enter+0xdc/0x1a0 fs/io_uring.c:9055
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7ff308df7a39
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff308d6e188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007ff308efaf60 RCX: 00007ff308df7a39
RDX: 0000000000000000 RSI: 0000000000007cdc RDI: 0000000000000004
RBP: 00007ff308e51e8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7a9a3d7f R14: 00007ff308d6e300 R15: 0000000000022000


addr ffffc90000ab7768 is located in stack of task syz-executor.0/440 at offset 152 in frame:
 io_write+0x0/0xab0 include/linux/uio.h:234

this frame has 3 objects:
 [48, 56) 'iovec'
 [80, 120) '__iter'
 [160, 288) 'inline_vecs'

Memory state around the buggy address:
 ffffc90000ab7600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90000ab7680: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00
>ffffc90000ab7700: 00 f2 f2 f2 00 00 00 00 00 f2 f2 f2 f2 f2 00 00
                                                          ^
 ffffc90000ab7780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3
 ffffc90000ab7800: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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