jffs2: Bad value for 'rp_size'
------------[ cut here ]------------
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 0 PID: 8822 at lib/refcount.c:25 refcount_warn_saturate+0x108/0x1a0 lib/refcount.c:25
Modules linked in:
CPU: 0 PID: 8822 Comm: syz-executor.0 Not tainted 5.11.0-syzkaller-11646-g5695e5161974 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--)
pc : refcount_warn_saturate+0x108/0x1a0 lib/refcount.c:25
lr : refcount_warn_saturate+0x108/0x1a0 lib/refcount.c:25
sp : ffff00003473fb70
x29: ffff00003473fb70 x28: ffff80001aceb8c0 
x27: ffff000019614000 x26: ffff00000ee60568 
x25: 1fffe00001dcc0ad x24: 1fffe0000310180a 
x23: ffff000019614000 x22: ffff800017b8ec20 
x21: ffff00000dea19c0 x20: ffff000019615108 
x19: 0000000000000002 x18: ffff00006a34eb48 
x17: 0000000000000000 x16: 0000000000000003 
x15: ffff80001b0d9010 x14: 1fffe000068e7ea4 
x13: 0000000000000000 x12: ffff60000d469d84 
x11: 1fffe0000d469d83 x10: ffff60000d469d83 
x9 : dfff800000000000 x8 : ffff00006a34ec1b 
x7 : 0000000000000001 x6 : 00009ffff2b9627d 
x5 : ffff00006a34ec18 x4 : 1fffe00001bd4339 
x3 : dfff800000000000 x2 : 0000000000000000 
x1 : 0000000000000000 x0 : ffff00000dea19c0 
Call trace:
 refcount_warn_saturate+0x108/0x1a0 lib/refcount.c:25
 __refcount_add include/linux/refcount.h:199 [inline]
 __refcount_inc include/linux/refcount.h:250 [inline]
 refcount_inc include/linux/refcount.h:267 [inline]
 kref_get include/linux/kref.h:45 [inline]
 j1939_netdev_start+0x7bc/0x900 net/can/j1939/main.c:271
 j1939_sk_bind+0x2c8/0xd30 net/can/j1939/socket.c:479
 __sys_bind+0x16c/0x1d0 net/socket.c:1637
 __do_sys_bind net/socket.c:1648 [inline]
 __se_sys_bind net/socket.c:1646 [inline]
 __arm64_sys_bind+0x6c/0xa0 net/socket.c:1646
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]
 el0_svc_common.constprop.0+0xf0/0x2c0 arch/arm64/kernel/syscall.c:129
 do_el0_svc_compat+0x40/0x70 arch/arm64/kernel/syscall.c:174
 el0_svc_compat+0x24/0x3c arch/arm64/kernel/entry-common.c:494
 el0_sync_compat_handler+0x90/0x140 arch/arm64/kernel/entry-common.c:503
 el0_sync_compat+0x174/0x180 arch/arm64/kernel/entry.S:708