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BUG: KASAN: user-memory-access in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: user-memory-access in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inline]
BUG: KASAN: user-memory-access in __refcount_sub_and_test include/linux/refcount.h:389 [inline]
BUG: KASAN: user-memory-access in __refcount_dec_and_test include/linux/refcount.h:432 [inline]
BUG: KASAN: user-memory-access in refcount_dec_and_test include/linux/refcount.h:450 [inline]
BUG: KASAN: user-memory-access in ax25_cb_put include/net/ax25.h:281 [inline]
BUG: KASAN: user-memory-access in rose_link_up net/rose/rose_link.c:131 [inline]
BUG: KASAN: user-memory-access in rose_transmit_link+0x1ab/0x740 net/rose/rose_link.c:271
Write of size 4 at addr 00000001000003ce by task syz.1.3692/20850

CPU: 0 UID: 0 PID: 20850 Comm: syz.1.3692 Not tainted 6.15.0-syzkaller-12422-g2c7e4a2663a1 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 kasan_report+0x118/0x150 mm/kasan/report.c:634
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:189
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inline]
 __refcount_sub_and_test include/linux/refcount.h:389 [inline]
 __refcount_dec_and_test include/linux/refcount.h:432 [inline]
 refcount_dec_and_test include/linux/refcount.h:450 [inline]
 ax25_cb_put include/net/ax25.h:281 [inline]
 rose_link_up net/rose/rose_link.c:131 [inline]
 rose_transmit_link+0x1ab/0x740 net/rose/rose_link.c:271
 rose_write_internal+0x11dc/0x1ac0 net/rose/rose_subr.c:198
 rose_connect+0x8ee/0x10a0 net/rose/af_rose.c:879
 __sys_connect_file net/socket.c:2038 [inline]
 __sys_connect+0x313/0x440 net/socket.c:2057
 __do_sys_connect net/socket.c:2063 [inline]
 __se_sys_connect net/socket.c:2060 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:2060
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd31738e929
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:00007fd3182e0038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fd3175b5fa0 RCX: 00007fd31738e929
RDX: 000000000000001c RSI: 00002000000000c0 RDI: 0000000000000008
RBP: 00007fd317410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd3175b5fa0 R15: 00007ffe3d0e4ee8
 </TASK>
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