------------[ cut here ]------------
WARNING: CPU: 1 PID: 5878 at kernel/signal.c:2008 posixtimer_send_sigqueue+0x9da/0xbc0 kernel/signal.c:2008
Modules linked in:
CPU: 1 UID: 0 PID: 5878 Comm: syz-executor346 Not tainted 6.12.0-rc6-next-20241108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:posixtimer_send_sigqueue+0x9da/0xbc0 kernel/signal.c:2008
Code: df 80 3c 08 00 74 08 48 89 df e8 c1 ad a5 00 4c 89 2b eb 51 e8 a7 32 3b 00 41 be 02 00 00 00 e9 e9 fd ff ff e8 97 32 3b 00 90 <0f> 0b 90 e9 f2 fa ff ff 4c 89 ef e8 86 33 5a 03 84 c0 0f 84 aa 01
RSP: 0018:ffffc90000a18bc0 EFLAGS: 00010006
RAX: ffffffff81644979 RBX: 0000000000000000 RCX: ffff888035291e00
RDX: 0000000000010000 RSI: 000000000000001e RDI: 0000000000000009
RBP: ffffc90000a18cc0 R08: ffffffff816450cc R09: 1ffffffff203910e
R10: dffffc0000000000 R11: fffffbfff203910f R12: ffff88807c8b9ac4
R13: 1ffff1100f917358 R14: ffff88807c8b9a40 R15: ffff88807c8b9b00
FS:  0000555576afa380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000273e4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 alarm_handle_timer+0x2f/0x60 kernel/time/alarmtimer.c:537
 alarmtimer_fired+0x173/0x410 kernel/time/alarmtimer.c:205
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0xc3/0x120 kernel/kcov.c:351
Code: 8b 74 d6 10 65 8b 05 94 52 64 7e 25 00 01 ff 00 74 11 3d 00 01 00 00 75 de 41 83 bb 1c 16 00 00 00 74 d4 41 8b 83 f8 15 00 00 <83> f8 03 75 c8 49 8b 8b 00 16 00 00 45 8b bb fc 15 00 00 49 c1 e7
RSP: 0018:ffffc900040e6bb0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000020e5a000 RCX: ffff888035291e00
RDX: 0000000000000001 RSI: ffffffff9003aed0 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000005 R09: ffffffff8bbb3dab
R10: 0000000000000004 R11: ffff888035291e00 R12: dffffc0000000000
R13: 00007f1e024d0fff R14: 0000000000000001 R15: 0000000000000000
 ma_slots lib/maple_tree.c:775 [inline]
 mtree_range_walk+0x3eb/0x8e0 lib/maple_tree.c:2801
 mas_state_walk lib/maple_tree.c:3620 [inline]
 mt_find+0x3a8/0x920 lib/maple_tree.c:6929
 find_vma+0xf9/0x170 mm/mmap.c:956
 gup_vma_lookup mm/gup.c:1336 [inline]
 __get_user_pages+0x4b3/0x49e0 mm/gup.c:1453
 __get_user_pages_locked mm/gup.c:1751 [inline]
 get_dump_page+0x155/0x2f0 mm/gup.c:2269
 dump_user_range+0x14d/0x970 fs/coredump.c:943
 elf_core_dump+0x3e9f/0x4790 fs/binfmt_elf.c:2127
 do_coredump+0x214b/0x2e60 fs/coredump.c:758
 get_signal+0x140b/0x1750 kernel/signal.c:2995
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f1e0250095e
Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 d2 04 00 00 <c5> fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f
RSP: 002b:00007ffd4b194448 EFLAGS: 00010287
RAX: 00007ffd4b1944a0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000000000e0 RSI: 0000000000000000 RDI: 00007ffd4b1944a0
RBP: 0000000020000180 R08: 00000000000000e0 R09: 00007ffd4b194480
R10: 0000000000000000 R11: 0000000000000217 R12: 00007ffd4b1944a0
R13: 0000000000000006 R14: 431bde82d7b634db R15: 00007ffd4b19446c
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 74 d6 10          	mov    0x10(%rsi,%rdx,8),%esi
   4:	65 8b 05 94 52 64 7e 	mov    %gs:0x7e645294(%rip),%eax        # 0x7e64529f
   b:	25 00 01 ff 00       	and    $0xff0100,%eax
  10:	74 11                	je     0x23
  12:	3d 00 01 00 00       	cmp    $0x100,%eax
  17:	75 de                	jne    0xfffffff7
  19:	41 83 bb 1c 16 00 00 	cmpl   $0x0,0x161c(%r11)
  20:	00
  21:	74 d4                	je     0xfffffff7
  23:	41 8b 83 f8 15 00 00 	mov    0x15f8(%r11),%eax
* 2a:	83 f8 03             	cmp    $0x3,%eax <-- trapping instruction
  2d:	75 c8                	jne    0xfffffff7
  2f:	49 8b 8b 00 16 00 00 	mov    0x1600(%r11),%rcx
  36:	45 8b bb fc 15 00 00 	mov    0x15fc(%r11),%r15d
  3d:	49                   	rex.WB
  3e:	c1                   	.byte 0xc1
  3f:	e7                   	.byte 0xe7