Oops: general protection fault, probably for non-canonical address 0xdffffc0000000060: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000300-0x0000000000000307]
CPU: 1 UID: 0 PID: 24322 Comm: modprobe Not tainted 6.16.0-rc2-syzkaller #0 PREEMPT(voluntary)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:strcmp+0x5b/0xb0 lib/string.c:284
Code: fa 48 c1 e8 03 83 e2 07 42 0f b6 04 28 38 d0 7f 04 84 c0 75 58 48 89 f0 48 89 f2 0f b6 6b ff 4c 8d 66 01 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 04 84 c0 75 2c 41 3a 6c 24 ff 74 ae 19 c0
RSP: 0018:ffffc900001a89b8 EFLAGS: 00010046
RAX: 0000000000000060 RBX: ffffffff87690881 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000300 RDI: ffffffff87690880
RBP: 0000000000000026 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88812b50e00b R11: 0000000000000001 R12: 0000000000000301
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8e772690
FS: 0000000000000000(0000) GS:ffff888269264000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005560046e1008 CR3: 0000000138202000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
count_matching_names kernel/locking/lockdep.c:881 [inline]
register_lock_class+0x26d/0x4c0 kernel/locking/lockdep.c:1347
__lock_acquire+0xa6/0x1c90 kernel/locking/lockdep.c:5115
lock_acquire kernel/locking/lockdep.c:5871 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5828
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
complete_with_flags kernel/sched/completion.c:20 [inline]
complete+0x1d/0x200 kernel/sched/completion.c:47
transfer drivers/usb/gadget/udc/dummy_hcd.c:1523 [inline]
dummy_timer+0x1c53/0x3a20 drivers/usb/gadget/udc/dummy_hcd.c:1979
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842
handle_softirqs+0x205/0x8d0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfa/0x160 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:mtree_range_walk+0x7bf/0xc00 lib/maple_tree.c:2796
Code: fa 48 c7 c2 80 58 35 88 be 20 03 00 00 48 c7 c7 20 54 35 88 c6 05 82 f4 46 03 01 e8 2b 00 34 fa e9 b7 fa ff ff 48 8b 54 24 18 <48> 8b 4c 24 60 44 88 24 24 4c 8b 74 24 58 4c 8b 64 24 68 48 89 54
RSP: 0018:ffffc90002a473e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff872623fd
RDX: ffffc90002a475a0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000007
R13: 0000000000000005 R14: 0000000000000300 R15: 00007ffccd95ffff
mas_state_walk lib/maple_tree.c:3630 [inline]
mas_walk+0x4f9/0x910 lib/maple_tree.c:4936
mas_find_setup lib/maple_tree.c:6001 [inline]
mas_find+0x107/0x530 lib/maple_tree.c:6041
vma_find include/linux/mm.h:855 [inline]
__mmap_prepare mm/vma.c:2340 [inline]
__mmap_region+0x208/0x2470 mm/vma.c:2607
mmap_region+0x1ab/0x3f0 mm/vma.c:2692
do_mmap+0xa2e/0x11f0 mm/mmap.c:561
vm_mmap_pgoff+0x201/0x390 mm/util.c:579
vm_mmap+0x8e/0xc0 mm/util.c:615
elf_map fs/binfmt_elf.c:380 [inline]
elf_load+0x25e/0x780 fs/binfmt_elf.c:407
load_elf_interp fs/binfmt_elf.c:674 [inline]
load_elf_binary+0x351d/0x4e40 fs/binfmt_elf.c:1239
search_binary_handler fs/exec.c:1665 [inline]
exec_binprm fs/exec.c:1697 [inline]
bprm_execve fs/exec.c:1749 [inline]
bprm_execve+0x8c3/0x1600 fs/exec.c:1725
kernel_execve+0x2ef/0x3b0 fs/exec.c:1915
call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:109
ret_from_fork+0x5b3/0x6c0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:strcmp+0x5b/0xb0 lib/string.c:284
Code: fa 48 c1 e8 03 83 e2 07 42 0f b6 04 28 38 d0 7f 04 84 c0 75 58 48 89 f0 48 89 f2 0f b6 6b ff 4c 8d 66 01 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 04 84 c0 75 2c 41 3a 6c 24 ff 74 ae 19 c0
RSP: 0018:ffffc900001a89b8 EFLAGS: 00010046
RAX: 0000000000000060 RBX: ffffffff87690881 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000300 RDI: ffffffff87690880
RBP: 0000000000000026 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88812b50e00b R11: 0000000000000001 R12: 0000000000000301
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8e772690
FS: 0000000000000000(0000) GS:ffff888269264000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005560046e1008 CR3: 0000000138202000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: fa cli
1: 48 c1 e8 03 shr $0x3,%rax
5: 83 e2 07 and $0x7,%edx
8: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax
d: 38 d0 cmp %dl,%al
f: 7f 04 jg 0x15
11: 84 c0 test %al,%al
13: 75 58 jne 0x6d
15: 48 89 f0 mov %rsi,%rax
18: 48 89 f2 mov %rsi,%rdx
1b: 0f b6 6b ff movzbl -0x1(%rbx),%ebp
1f: 4c 8d 66 01 lea 0x1(%rsi),%r12
23: 48 c1 e8 03 shr $0x3,%rax
27: 83 e2 07 and $0x7,%edx
* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2f: 38 d0 cmp %dl,%al
31: 7f 04 jg 0x37
33: 84 c0 test %al,%al
35: 75 2c jne 0x63
37: 41 3a 6c 24 ff cmp -0x1(%r12),%bpl
3c: 74 ae je 0xffffffec
3e: 19 c0 sbb %eax,%eax