IPv6: ADDRCONF(NETDEV_CHANGE): bpq0: link becomes ready
Unable to handle kernel paging request at virtual address dfff800000000006
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
Mem abort info:
ESR = 0x0000000096000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x06: level 2 translation fault
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
[dfff800000000006] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4455 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : rose_transmit_link+0x40/0x668 net/rose/rose_link.c:266
lr : rose_transmit_link+0x34/0x668 net/rose/rose_link.c:263
sp : ffff800021567760
x29: ffff800021567760 x28: dfff800000000000 x27: ffff7000042acefc
x26: dfff800000000000 x25: 0000000000000032 x24: 0000000000000000
x23: ffff0000d4aec5ad x22: 0000000000000000 x21: 0000000000000036
x20: ffff0000d14d1280 x19: 0000000000000000 x18: ffff800011b8bf60
x17: ffff80000fd47170 x16: ffff8000082d9364 x15: 0000000000000000
x14: 000000000000000f x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff00800010b80a94 x10: 0000000000000000 x9 : 0000000000000006
x8 : 0000000000000006 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000fd637bc
x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff0000d14d1280
Call trace:
rose_transmit_link+0x40/0x668 net/rose/rose_link.c:266
rose_write_internal+0xefc/0x17d0 net/rose/rose_subr.c:198
rose_release+0x208/0x4d4 net/rose/af_rose.c:671
__sock_release net/socket.c:654 [inline]
sock_close+0xb4/0x1f8 net/socket.c:1399
__fput+0x1bc/0x7b8 fs/file_table.c:320
____fput+0x20/0x30 fs/file_table.c:348
task_work_run+0x1ec/0x278 kernel/task_work.c:203
get_signal+0x111c/0x1304 kernel/signal.c:2648
do_signal arch/arm64/kernel/signal.c:1095 [inline]
do_notify_resume+0x33c/0x2aa4 arch/arm64/kernel/signal.c:1148
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 97d1b2a8 9100da75 d343fea8 12000aa9 (38fa6908)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 97d1b2a8 bl 0xffffffffff46caa0
4: 9100da75 add x21, x19, #0x36
8: d343fea8 lsr x8, x21, #3
c: 12000aa9 and w9, w21, #0x7
* 10: 38fa6908 ldrsb w8, [x8, x26] <-- trapping instruction