BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1ef0d0067 P4D 1ef0d0067 PUD 1e39ef067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1387 Comm: syz.1.400 Not tainted 5.4.276-syzkaller-00021-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6f09d18 EFLAGS: 00010202
RAX: ffffffff8154d48a RBX: 0000000000000101 RCX: ffff8881d6c40000
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881f0e5b1c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d0ce R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffff9ba0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881f0e5b1c0
FS: 00007fd461c056c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001cfd61000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
expire_timers kernel/time/timer.c:1493 [inline]
__run_timers+0x879/0xbe0 kernel/time/timer.c:1817
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
__do_softirq+0x23b/0x6b7 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x195/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:539 [inline]
smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:clear_page_erms+0x9/0x10 arch/x86/lib/clear_page_64.S:50
Code: 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 0f 1f 80 00 00 00 00 b9 00 10 00 00 31 c0 f3 aa 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 18 48
RSP: 0018:ffff8881e1187248 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 1ffff1103ad8814b RCX: 0000000000000000
RDX: ffffc90000540000 RSI: 000000000003ffff RDI: ffff8881e6130000
RBP: ffff8881d6c40a58 R08: dffffc0000000000 R09: ffffed103e4f238e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881e612f000 R14: dffffc0000000000 R15: 0000000000000001
clear_page arch/x86/include/asm/page_64.h:49 [inline]
clear_highpage include/linux/highmem.h:219 [inline]
kernel_init_free_pages mm/page_alloc.c:1131 [inline]
prep_new_page+0xff/0x370 mm/page_alloc.c:2174
get_page_from_freelist+0x2d13/0x2d90 mm/page_alloc.c:3794
__alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4893
__alloc_pages include/linux/gfp.h:503 [inline]
__alloc_pages_node include/linux/gfp.h:516 [inline]
alloc_pages_node include/linux/gfp.h:530 [inline]
pcpu_alloc_pages mm/percpu-vm.c:94 [inline]
pcpu_populate_chunk+0x1bb/0xd00 mm/percpu-vm.c:284
pcpu_alloc+0x79e/0x1050 mm/percpu.c:1714
prealloc_init+0x238/0x800 kernel/bpf/hashtab.c:154
htab_map_alloc+0x638/0x930 kernel/bpf/hashtab.c:382
find_and_alloc_map kernel/bpf/syscall.c:122 [inline]
map_create kernel/bpf/syscall.c:573 [inline]
__do_sys_bpf kernel/bpf/syscall.c:2873 [inline]
__se_sys_bpf+0x3291/0xbcb0 kernel/bpf/syscall.c:2849
do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7fd462983f19
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:00007fd461c05048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fd462b11f60 RCX: 00007fd462983f19
RDX: 0000000000000048 RSI: 0000000020000840 RDI: 0000000000000000
RBP: 00007fd4629f2bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd462b11f60 R15: 00007ffca2051338
Modules linked in:
CR2: 0000000000000000
---[ end trace 569c8910a713de31 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8881f6f09d18 EFLAGS: 00010202
RAX: ffffffff8154d48a RBX: 0000000000000101 RCX: ffff8881d6c40000
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff8881f0e5b1c0
RBP: ffff8881f6f09ec8 R08: ffffffff8154d0ce R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 00000000ffff9ba0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881f0e5b1c0
FS: 00007fd461c056c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000001cfd61000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 47 18 48 89 rex.RXB sbb %r9b,-0x77(%r8)
4: 47 20 48 89 rex.RXB and %r9b,-0x77(%r8)
8: 47 28 48 89 rex.RXB sub %r9b,-0x77(%r8)
c: 47 30 48 89 rex.RXB xor %r9b,-0x77(%r8)
10: 47 38 48 8d rex.RXB cmp %r9b,-0x73(%r8)
14: 7f 40 jg 0x56
16: 75 d9 jne 0xfffffff1
18: 90 nop
19: c3 ret
1a: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
21: b9 00 10 00 00 mov $0x1000,%ecx
26: 31 c0 xor %eax,%eax
28: f3 aa rep stos %al,%es:(%rdi)
* 2a: c3 ret <-- trapping instruction
2b: 90 nop
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 90 nop
31: 55 push %rbp
32: 41 57 push %r15
34: 41 56 push %r14
36: 41 55 push %r13
38: 41 54 push %r12
3a: 53 push %rbx
3b: 48 83 ec 18 sub $0x18,%rsp
3f: 48 rex.W