------------[ cut here ]------------
WARNING: CPU: 1 PID: 5037 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 5037 Comm: sed Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c0 f3 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000dd0b90 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000000 RCX: ffff88801ff30000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1003fe6001
R10: ffffed1003fe6001 R11: 1ffff11003fe6000 R12: ffff88801ff31788
R13: 00007ffffffff000 R14: ffffc90000dd0bc8 R15: 0000000020000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fabdc808fe8 CR3: 000000005def2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_8fc34fd13f997abc+0x3d/0xa84
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 trace_hrtimer_start include/trace/events/timer.h:199 [inline]
 debug_activate kernel/time/hrtimer.c:466 [inline]
 enqueue_hrtimer+0x314/0x370 kernel/time/hrtimer.c:1074
 __run_hrtimer kernel/time/hrtimer.c:1707 [inline]
 __hrtimer_run_queues+0x65a/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1816
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:rb_prev+0x78/0xd0 lib/rbtree.c:537
Code: e8 2d 10 bf fd 49 8b 06 48 85 c0 75 0a eb 30 48 8b 03 48 85 c0 74 cb 49 89 c6 48 8d 58 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> e3 48 89 df e8 fe 0f bf fd eb d9 49 3b 5e 10 4c 89 f3 75 a3 48
RSP: 0018:ffffc9000384f8a8 EFLAGS: 00000246
RAX: 1ffff110055d754f RBX: ffff88802aebaa78 RCX: ffff88801ff30000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802aeba548
RBP: 0000000000000019 R08: dffffc0000000000 R09: ffffed100f038630
R10: ffffed100f038630 R11: 1ffff1100f03862f R12: ffff88802aeba548
R13: dffffc0000000000 R14: ffff88802aebaa70 R15: dffffc0000000000
 browse_rb mm/mmap.c:370 [inline]
 validate_mm+0x717/0x950 mm/mmap.c:423
 __vma_adjust+0x1b6c/0x1c20 mm/mmap.c:1029
 vma_adjust include/linux/mm.h:2567 [inline]
 __split_vma+0x34b/0x410 mm/mmap.c:-1
 __do_munmap+0x3eb/0xdc0 mm/mmap.c:2865
 do_munmap mm/mmap.c:2910 [inline]
 munmap_vma_range mm/mmap.c:603 [inline]
 __mmap_region mm/mmap.c:1757 [inline]
 mmap_region+0x8bb/0x1660 mm/mmap.c:2933
 do_mmap+0x81f/0xea0 mm/mmap.c:1586
 vm_mmap_pgoff+0x1b2/0x2b0 mm/util.c:551
 ksys_mmap_pgoff+0x542/0x780 mm/mmap.c:1635
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fabdcad2242
Code: 08 00 04 00 00 eb e2 90 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 33 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e 5b 5d c3 0f 1f 00 c7 05 46 40 01 00 16 00
RSP: 002b:00007ffd6d47d4c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fabdc7f6000 RCX: 00007fabdcad2242
RDX: 0000000000000005 RSI: 0000000000002000 RDI: 00007fabdc7f6000
RBP: 0000000000000812 R08: 0000000000000003 R09: 0000000000002000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffd6d47d518
R13: 00007fabdcaaf050 R14: 00007ffd6d47d900 R15: 00000fffada8fa9c
 </TASK>
----------------
Code disassembly (best guess):
   0:	e8 2d 10 bf fd       	call   0xfdbf1032
   5:	49 8b 06             	mov    (%r14),%rax
   8:	48 85 c0             	test   %rax,%rax
   b:	75 0a                	jne    0x17
   d:	eb 30                	jmp    0x3f
   f:	48 8b 03             	mov    (%rbx),%rax
  12:	48 85 c0             	test   %rax,%rax
  15:	74 cb                	je     0xffffffe2
  17:	49 89 c6             	mov    %rax,%r14
  1a:	48 8d 58 08          	lea    0x8(%rax),%rbx
  1e:	48 89 d8             	mov    %rbx,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
* 2a:	74 e3                	je     0xf <-- trapping instruction
  2c:	48 89 df             	mov    %rbx,%rdi
  2f:	e8 fe 0f bf fd       	call   0xfdbf1032
  34:	eb d9                	jmp    0xf
  36:	49 3b 5e 10          	cmp    0x10(%r14),%rbx
  3a:	4c 89 f3             	mov    %r14,%rbx
  3d:	75 a3                	jne    0xffffffe2
  3f:	48                   	rex.W