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WARNING in bpf_get_stackid_raw_tp

Status: upstream: reported on 2025/05/30 11:40
Reported-by: syzbot+6f5bd4b585cd5d340eca@syzkaller.appspotmail.com
First crash: 40d, last: 16d

Sample crash report:
hrtimer: interrupt took 33362 ns
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4274 at kernel/trace/bpf_trace.c:1411 get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1411 [inline]
WARNING: CPU: 1 PID: 4274 at kernel/trace/bpf_trace.c:1411 ____bpf_get_stackid_raw_tp kernel/trace/bpf_trace.c:1457 [inline]
WARNING: CPU: 1 PID: 4274 at kernel/trace/bpf_trace.c:1411 bpf_get_stackid_raw_tp+0x182/0x1b0 kernel/trace/bpf_trace.c:1454
Modules linked in:
CPU: 1 PID: 4274 Comm: syz.1.2 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1411 [inline]
RIP: 0010:____bpf_get_stackid_raw_tp kernel/trace/bpf_trace.c:1457 [inline]
RIP: 0010:bpf_get_stackid_raw_tp+0x182/0x1b0 kernel/trace/bpf_trace.c:1454
Code: c9 45 31 c0 e8 df ca 13 00 65 ff 0d 90 f3 81 7e 4c 63 f8 4c 89 f8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 6e 78 f6 ff <0f> 0b 65 ff 0d 6d f3 81 7e 49 c7 c7 f0 ff ff ff eb d7 e8 57 78 f6
RSP: 0018:ffffc90000dd04f0 EFLAGS: 00010246
RAX: ffffffff818149b2 RBX: 0000000000000004 RCX: ffff888023118000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 00000000fffffffc
RBP: ffffc90000dd0520 R08: dffffc0000000000 R09: fffffbfff1ff3619
R10: fffffbfff1ff3619 R11: 1ffffffff1ff3618 R12: dffffc0000000000
R13: ffff8880b9100000 R14: ffff88807522d000 R15: 0000000000000001
FS:  00007efe2c8ea6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000772e9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_prog_ffe0f4df14f1e7a3+0x21/0x370
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x188/0x330 kernel/trace/bpf_trace.c:1917
 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201
 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline]
 __alloc_pages+0x449/0x470 mm/page_alloc.c:5496
 alloc_slab_page mm/slub.c:1775 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xc0/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 kmem_cache_alloc_node+0x1c3/0x2d0 mm/slub.c:3256
 __alloc_skb+0xf4/0x750 net/core/skbuff.c:415
 skb_copy+0x139/0x790 net/core/skbuff.c:1595
 mac80211_hwsim_tx_frame_no_nl+0xcc7/0x15d0 drivers/net/wireless/mac80211_hwsim.c:1569
 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/mac80211_hwsim.c:1788
 mac80211_hwsim_beacon_tx+0x4f3/0x920 drivers/net/wireless/mac80211_hwsim.c:1842
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 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:console_unlock+0xd90/0x1200 kernel/printk/printk.c:2749
Code: 00 48 83 7c 24 28 00 75 19 e8 ec 9e 18 00 eb 18 e8 e5 9e 18 00 e8 80 49 42 08 48 83 7c 24 28 00 74 e7 e8 d3 9e 18 00 fb 31 ff <89> de e8 29 a2 18 00 85 db 0f 94 c0 22 44 24 17 3c 01 75 1f e8 b7
RSP: 0018:ffffc9000323e280 EFLAGS: 00000246
RAX: ffffffff815f234d RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc900040c4000 RSI: 000000000000429a RDI: 0000000000000000
RBP: ffffc9000323e4f0 R08: dffffc0000000000 R09: fffffbfff1ff3619
R10: fffffbfff1ff3619 R11: 1ffffffff1ff3618 R12: 1ffffffff194c725
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffffffff194c71e
 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
 _printk+0xcc/0x110 kernel/printk/printk.c:2299
 report_bug+0x1e5/0x2e0 lib/bug.c:195
 handle_bug+0x3a/0x70 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:604
RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1411 [inline]
RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1483 [inline]
RIP: 0010:bpf_get_stack_raw_tp+0x196/0x1d0 kernel/trace/bpf_trace.c:1480
Code: c8 45 31 c0 e8 db ce 13 00 65 ff 0d cc f1 81 7e 4c 63 e0 4c 89 e0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 aa 76 f6 ff <0f> 0b 65 ff 0d a9 f1 81 7e 49 c7 c4 f0 ff ff ff eb d7 e8 93 76 f6
RSP: 0018:ffffc9000323e778 EFLAGS: 00010287
RAX: ffffffff81814b76 RBX: ffff8880b9100000 RCX: 0000000000080000
RDX: ffffc900040c4000 RSI: 000000000000058f RDI: 0000000000000590
RBP: ffffc9000323e7b0 R08: dffffc0000000000 R09: fffffbfff1ff3619
R10: fffffbfff1ff3619 R11: 1ffffffff1ff3618 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000000
 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc68
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x188/0x330 kernel/trace/bpf_trace.c:1917
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline]
 __mmap_lock_do_trace_acquire_returned+0x231/0x290 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 stack_map_get_build_id_offset+0x83d/0x860 kernel/bpf/stackmap.c:185
 __bpf_get_stack+0x44a/0x4f0 kernel/bpf/stackmap.c:496
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline]
 bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1480
 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc68
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x188/0x330 kernel/trace/bpf_trace.c:1917
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline]
 __mmap_lock_do_trace_acquire_returned+0x231/0x290 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 stack_map_get_build_id_offset+0x83d/0x860 kernel/bpf/stackmap.c:185
 __bpf_get_stack+0x44a/0x4f0 kernel/bpf/stackmap.c:496
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline]
 bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1480
 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc68
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x188/0x330 kernel/trace/bpf_trace.c:1917
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline]
 __mmap_lock_do_trace_acquire_returned+0x231/0x290 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 stack_map_get_build_id_offset+0x83d/0x860 kernel/bpf/stackmap.c:185
 __bpf_get_stack+0x44a/0x4f0 kernel/bpf/stackmap.c:496
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline]
 bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1480
 bpf_prog_ec3b2eefa702d8d3+0x3a/0xc68
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x188/0x330 kernel/trace/bpf_trace.c:1917
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline]
 __mmap_lock_do_trace_acquire_returned+0x231/0x290 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 do_user_addr_fault+0xbbb/0xc80 arch/x86/mm/fault.c:1298
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
RIP: 0010:strncpy_from_user+0x163/0x360 lib/strncpy_from_user.c:139
Code: 4c 89 e6 e8 ff e7 7c fd 49 83 fc 07 0f 86 a1 00 00 00 4c 89 74 24 08 48 c7 44 24 10 f8 ff ff ff 45 31 ed 4c 89 3c 24 48 89 dd <4f> 8b 3c 2f 48 b8 ff fe fe fe fe fe fe fe 49 8d 1c 07 4d 89 fe 49
RSP: 0018:ffffc9000323fb90 EFLAGS: 00050246
RAX: ffffffff83fade01 RBX: ffffc9000323fcb0 RCX: ffff888023118000
RDX: 0000000000000002 RSI: 000000000000007f RDI: 0000000000000007
RBP: ffffc9000323fcb0 R08: ffff888023118000 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000002 R12: 000000000000007f
R13: 0000000000000000 R14: 000000000000007f R15: 0000000000000000
 strncpy_from_bpfptr include/linux/bpfptr.h:84 [inline]
 bpf_prog_load+0x1a8/0x1550 kernel/bpf/syscall.c:2233
 __sys_bpf+0x4c2/0x670 kernel/bpf/syscall.c:4651
 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4753 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753
 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: 0033:0x7efe2ea82929
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:00007efe2c8ea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007efe2eca9fa0 RCX: 00007efe2ea82929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007efe2eb04b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efe2eca9fa0 R15: 00007ffd4b5f2838
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 83             	add    %cl,-0x7d(%rax)
   3:	7c 24                	jl     0x29
   5:	28 00                	sub    %al,(%rax)
   7:	75 19                	jne    0x22
   9:	e8 ec 9e 18 00       	call   0x189efa
   e:	eb 18                	jmp    0x28
  10:	e8 e5 9e 18 00       	call   0x189efa
  15:	e8 80 49 42 08       	call   0x842499a
  1a:	48 83 7c 24 28 00    	cmpq   $0x0,0x28(%rsp)
  20:	74 e7                	je     0x9
  22:	e8 d3 9e 18 00       	call   0x189efa
  27:	fb                   	sti
  28:	31 ff                	xor    %edi,%edi
* 2a:	89 de                	mov    %ebx,%esi <-- trapping instruction
  2c:	e8 29 a2 18 00       	call   0x18a25a
  31:	85 db                	test   %ebx,%ebx
  33:	0f 94 c0             	sete   %al
  36:	22 44 24 17          	and    0x17(%rsp),%al
  3a:	3c 01                	cmp    $0x1,%al
  3c:	75 1f                	jne    0x5d
  3e:	e8                   	.byte 0xe8
  3f:	b7                   	.byte 0xb7

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/23 18:04 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in bpf_get_stackid_raw_tp
2025/05/30 11:39 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in bpf_get_stackid_raw_tp
* Struck through repros no longer work on HEAD.