Unable to handle kernel paging request at virtual address 0000000003000000
Mem abort info:
ESR = 0x0000000096000005
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x05: level 1 translation fault
Data abort info:
ISV = 0, ISS = 0x00000005
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000014fabe000
[0000000003000000] pgd=0800000156607003, p4d=0800000156607003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3162 Comm: kworker/u4:6 Not tainted 6.1.0-rc4-syzkaller-31872-g1621b6eaebf7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Workqueue: netns cleanup_net
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : count_subheaders+0x20/0xac fs/proc/proc_sysctl.c:1458
lr : count_subheaders+0x1c/0xac fs/proc/proc_sysctl.c:1452
sp : ffff800012e5bc20
x29: ffff800012e5bc20 x28: ffff000113e41be0 x27: ffff800012e5bd08
x26: ffff80000d7ade00 x25: ffff000113e41be0 x24: ffff0000c0028615
x23: ffff0001168e44d8 x22: dead000000000100 x21: ffff0001168e44c8
x20: ffff0001168e44c8 x19: 0700000003000000 x18: 000000000000026d
x17: 0000000000000000 x16: ffff80000db1a158 x15: ffff000115e98000
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff000115e98000
x11: ff808000086f4ca8 x10: 0000000000000000 x9 : ffff8000086f4ca8
x8 : ffff000115e98000 x7 : ffff80000843d3a8 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : ffff80000caf0858 x0 : 0700000003000000
Call trace:
count_subheaders+0x20/0xac fs/proc/proc_sysctl.c:1458
unregister_sysctl_table+0x38/0xd8 fs/proc/proc_sysctl.c:1730
unregister_net_sysctl_table+0x20/0x30 net/sysctl_net.c:175
sctp_sysctl_net_unregister+0x24/0x3c net/sctp/sysctl.c:602
sctp_defaults_exit+0x138/0x150 net/sctp/protocol.c:1441
ops_exit_list net/core/net_namespace.c:169 [inline]
cleanup_net+0x348/0x648 net/core/net_namespace.c:601
process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
worker_thread+0x340/0x610 kernel/workqueue.c:2436
kthread+0x12c/0x158 kernel/kthread.c:376
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863
Code: 910003fd aa0003f3 97eeb336 b4000373 (f9400268)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 910003fd mov x29, sp
4: aa0003f3 mov x19, x0
8: 97eeb336 bl 0xffffffffffbacce0
c: b4000373 cbz x19, 0x78
* 10: f9400268 ldr x8, [x19] <-- trapping instruction