Unable to handle kernel paging request at virtual address fffe80021626fc00
KASAN: maybe wild-memory-access in range [0xfff80010b137e000-0xfff80010b137e007]
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001a5de2000
[fffe80021626fc00] pgd=0000000000000000, p4d=10000001ae4ff003, pud=0000000000000000
Internal error: Oops: 0000000096000004 [#1] SMP
Modules linked in:
CPU: 0 UID: 0 PID: 8365 Comm: dhcpcd-run-hook Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __percpu_add_case_64 arch/arm64/include/asm/percpu.h:127 [inline]
pc : percpu_ref_get_many+0xc4/0x1f4 include/linux/percpu-refcount.h:205
lr : rcu_read_lock include/linux/rcupdate.h:842 [inline]
lr : percpu_ref_get_many+0x3c/0x1f4 include/linux/percpu-refcount.h:202
sp : ffff80009ccd75e0
x29: ffff80009ccd75f0 x28: 0000000000000000 x27: 0000000000000000
x26: dfff800000000000 x25: ffff80009ccd7720 x24: ffff0001b3879780
x23: ffff0001b3879738 x22: 1fffe0001aa527a1 x21: dfff800000000000
x20: ffff0000d5293d08 x19: 0000000000000001 x18: 0000000000000000
x17: ffff0001fea8a870 x16: ffff80008ada5d6c x15: 0000000000000001
x14: 1fffe0001a50ccc3 x13: 0000000000000000 x12: 0000000000000000
x11: 00000000590f4815 x10: 0000000000000003 x9 : ffff80012461c000
x8 : fffe80021626fc00 x7 : ffff800080c94dd0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff80008b3d7940 x0 : 0000000000000001
Call trace:
percpu_ref_get_many+0xc4/0x1f4 include/linux/percpu-refcount.h:205 (P)
percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
obj_cgroup_get include/linux/memcontrol.h:760 [inline]
replace_stock_objcg mm/memcontrol.c:2774 [inline]
refill_obj_stock+0x150/0x470 mm/memcontrol.c:2952
obj_cgroup_uncharge mm/memcontrol.c:3015 [inline]
__memcg_slab_free_hook+0x110/0x228 mm/memcontrol.c:3102
memcg_slab_free_hook mm/slub.c:2223 [inline]
slab_free mm/slub.c:4653 [inline]
kmem_cache_free+0x270/0x550 mm/slub.c:4758
anon_vma_chain_free mm/rmap.c:147 [inline]
unlink_anon_vmas+0x224/0x520 mm/rmap.c:421
free_pgtables+0x3dc/0x63c mm/memory.c:391
exit_mmap+0x394/0xbec mm/mmap.c:1295
__mmput+0xec/0x3dc kernel/fork.c:1379
mmput+0x70/0xac kernel/fork.c:1401
exit_mm+0x13c/0x200 kernel/exit.c:589
do_exit+0x470/0x1998 kernel/exit.c:940
do_group_exit+0x194/0x22c kernel/exit.c:1102
__do_sys_exit_group kernel/exit.c:1113 [inline]
__se_sys_exit_group kernel/exit.c:1111 [inline]
pid_child_should_wake+0x0/0x1dc kernel/exit.c:1111
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 11000529 b9000289 d538d089 8b080128 (f833011f)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 11000529 add w9, w9, #0x1
4: b9000289 str w9, [x20]
8: d538d089 mrs x9, tpidr_el1
c: 8b080128 add x8, x9, x8
* 10: f833011f stadd x19, [x8] <-- trapping instruction