=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24121 Comm: syz-executor.5 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:kmsan_phys_addr_valid mm/kmsan/kmsan_shadow.c:59 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:83 [inline]
RIP: 0010:virt_to_page_or_null+0x31/0xf0 mm/kmsan/kmsan_shadow.c:125
Code: 48 2d 00 00 00 80 0f 83 c3 00 00 00 48 ba 00 00 00 00 80 77 00 00 48 01 fa 48 39 c2 77 55 8a 0d e2 1d aa 0f 48 89 d6 48 d3 ee <48> 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 6a ef 05 10 48
RSP: 0018:ffff8880a3e63230 EFLAGS: 00000246
RAX: ffff8881a0455ec0 RBX: ffff888120455ec0 RCX: 000000001a40c22e
RDX: 0000000120455ec0 RSI: 0000000000000000 RDI: ffff888120455ec0
RBP: ffff8880a3e63230 R08: ffffea000000000f R09: ffff88813fffa000
R10: 0000000000000007 R11: ffff888097de8000 R12: 0000000000000000
R13: 0000000004300197 R14: 0000000000000000 R15: 0000000000000000
kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190
kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145
__msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52
skb_zcopy include/linux/skbuff.h:1445 [inline]
skb_orphan_frags include/linux/skbuff.h:2790 [inline]
____dev_forward_skb include/linux/netdevice.h:4000 [inline]
__bpf_rx_skb_no_mac net/core/filter.c:2092 [inline]
__bpf_redirect_no_mac net/core/filter.c:2141 [inline]
__bpf_redirect+0xbb4/0x16b0 net/core/filter.c:2164
____bpf_clone_redirect net/core/filter.c:2448 [inline]
bpf_clone_redirect+0x4a1/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
------------[ cut here ]------------
Illegal XDP return value 4294967274, expect packet loss!
WARNING: CPU: 0 PID: 24121 at net/core/filter.c:8111 bpf_warn_invalid_xdp_action+0x147/0x150 net/core/filter.c:8109
Modules linked in:
CPU: 0 PID: 24121 Comm: syz-executor.5 Tainted: G B 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:bpf_warn_invalid_xdp_action+0x147/0x150 net/core/filter.c:8109
Code: 45 89 bd 50 06 00 00 45 89 a5 70 09 00 00 49 c7 85 80 0c 00 00 00 00 00 00 48 c7 c7 34 2f 9e 90 44 89 f2 31 c0 e8 09 c5 ef f4 <0f> 0b e9 fa fe ff ff 66 90 55 48 89 e5 41 57 41 56 41 55 41 54 53
RSP: 0018:ffff88813fc05890 EFLAGS: 00010246
RAX: cbaafe13b9732200 RBX: 00000000ffffff00 RCX: ffff888097de8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88813fc058b8 R08: ffffffff81a4b0aa R09: ffff88813fffa000
R10: 0000000000000003 R11: 00000000ffffffff R12: 0000000004e900cc
R13: ffff88813fc27b00 R14: 00000000ffffffea R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88813fc00000(0063) knlGS:00000000f55c3b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008159944 CR3: 0000000013188000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
netif_receive_generic_xdp+0x1ed6/0x2590 net/core/dev.c:4768
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:kmsan_phys_addr_valid mm/kmsan/kmsan_shadow.c:59 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:83 [inline]
RIP: 0010:virt_to_page_or_null+0x31/0xf0 mm/kmsan/kmsan_shadow.c:125
Code: 48 2d 00 00 00 80 0f 83 c3 00 00 00 48 ba 00 00 00 00 80 77 00 00 48 01 fa 48 39 c2 77 55 8a 0d e2 1d aa 0f 48 89 d6 48 d3 ee <48> 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 6a ef 05 10 48
RSP: 0018:ffff8880a3e63230 EFLAGS: 00000246
RAX: ffff8881a0455ec0 RBX: ffff888120455ec0 RCX: 000000001a40c22e
RDX: 0000000120455ec0 RSI: 0000000000000000 RDI: ffff888120455ec0
RBP: ffff8880a3e63230 R08: ffffea000000000f R09: ffff88813fffa000
R10: 0000000000000007 R11: ffff888097de8000 R12: 0000000000000000
R13: 0000000004300197 R14: 0000000000000000 R15: 0000000000000000
kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190
kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145
__msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52
skb_zcopy include/linux/skbuff.h:1445 [inline]
skb_orphan_frags include/linux/skbuff.h:2790 [inline]
____dev_forward_skb include/linux/netdevice.h:4000 [inline]
__bpf_rx_skb_no_mac net/core/filter.c:2092 [inline]
__bpf_redirect_no_mac net/core/filter.c:2141 [inline]
__bpf_redirect+0xbb4/0x16b0 net/core/filter.c:2164
____bpf_clone_redirect net/core/filter.c:2448 [inline]
bpf_clone_redirect+0x4a1/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
---[ end trace 63e6ae0a30db4843 ]---
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24121 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:kmsan_phys_addr_valid mm/kmsan/kmsan_shadow.c:59 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:83 [inline]
RIP: 0010:virt_to_page_or_null+0x31/0xf0 mm/kmsan/kmsan_shadow.c:125
Code: 48 2d 00 00 00 80 0f 83 c3 00 00 00 48 ba 00 00 00 00 80 77 00 00 48 01 fa 48 39 c2 77 55 8a 0d e2 1d aa 0f 48 89 d6 48 d3 ee <48> 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 6a ef 05 10 48
RSP: 0018:ffff8880a3e63230 EFLAGS: 00000246
RAX: ffff8881a0455ec0 RBX: ffff888120455ec0 RCX: 000000001a40c22e
RDX: 0000000120455ec0 RSI: 0000000000000000 RDI: ffff888120455ec0
RBP: ffff8880a3e63230 R08: ffffea000000000f R09: ffff88813fffa000
R10: 0000000000000007 R11: ffff888097de8000 R12: 0000000000000000
R13: 0000000004300197 R14: 0000000000000000 R15: 0000000000000000
kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190
kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145
__msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52
skb_zcopy include/linux/skbuff.h:1445 [inline]
skb_orphan_frags include/linux/skbuff.h:2790 [inline]
____dev_forward_skb include/linux/netdevice.h:4000 [inline]
__bpf_rx_skb_no_mac net/core/filter.c:2092 [inline]
__bpf_redirect_no_mac net/core/filter.c:2141 [inline]
__bpf_redirect+0xbb4/0x16b0 net/core/filter.c:2164
____bpf_clone_redirect net/core/filter.c:2448 [inline]
bpf_clone_redirect+0x4a1/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24121 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:kmsan_phys_addr_valid mm/kmsan/kmsan_shadow.c:59 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:83 [inline]
RIP: 0010:virt_to_page_or_null+0x31/0xf0 mm/kmsan/kmsan_shadow.c:125
Code: 48 2d 00 00 00 80 0f 83 c3 00 00 00 48 ba 00 00 00 00 80 77 00 00 48 01 fa 48 39 c2 77 55 8a 0d e2 1d aa 0f 48 89 d6 48 d3 ee <48> 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 6a ef 05 10 48
RSP: 0018:ffff8880a3e63230 EFLAGS: 00000246
RAX: ffff8881a0455ec0 RBX: ffff888120455ec0 RCX: 000000001a40c22e
RDX: 0000000120455ec0 RSI: 0000000000000000 RDI: ffff888120455ec0
RBP: ffff8880a3e63230 R08: ffffea000000000f R09: ffff88813fffa000
R10: 0000000000000007 R11: ffff888097de8000 R12: 0000000000000000
R13: 0000000004300197 R14: 0000000000000000 R15: 0000000000000000
kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190
kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145
__msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52
skb_zcopy include/linux/skbuff.h:1445 [inline]
skb_orphan_frags include/linux/skbuff.h:2790 [inline]
____dev_forward_skb include/linux/netdevice.h:4000 [inline]
__bpf_rx_skb_no_mac net/core/filter.c:2092 [inline]
__bpf_redirect_no_mac net/core/filter.c:2141 [inline]
__bpf_redirect+0xbb4/0x16b0 net/core/filter.c:2164
____bpf_clone_redirect net/core/filter.c:2448 [inline]
bpf_clone_redirect+0x4a1/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24121 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:kmsan_phys_addr_valid mm/kmsan/kmsan_shadow.c:59 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:83 [inline]
RIP: 0010:virt_to_page_or_null+0x31/0xf0 mm/kmsan/kmsan_shadow.c:125
Code: 48 2d 00 00 00 80 0f 83 c3 00 00 00 48 ba 00 00 00 00 80 77 00 00 48 01 fa 48 39 c2 77 55 8a 0d e2 1d aa 0f 48 89 d6 48 d3 ee <48> 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 6a ef 05 10 48
RSP: 0018:ffff8880a3e63230 EFLAGS: 00000246
RAX: ffff8881a0455ec0 RBX: ffff888120455ec0 RCX: 000000001a40c22e
RDX: 0000000120455ec0 RSI: 0000000000000000 RDI: ffff888120455ec0
RBP: ffff8880a3e63230 R08: ffffea000000000f R09: ffff88813fffa000
R10: 0000000000000007 R11: ffff888097de8000 R12: 0000000000000000
R13: 0000000004300197 R14: 0000000000000000 R15: 0000000000000000
kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190
kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145
__msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52
skb_zcopy include/linux/skbuff.h:1445 [inline]
skb_orphan_frags include/linux/skbuff.h:2790 [inline]
____dev_forward_skb include/linux/netdevice.h:4000 [inline]
__bpf_rx_skb_no_mac net/core/filter.c:2092 [inline]
__bpf_redirect_no_mac net/core/filter.c:2141 [inline]
__bpf_redirect+0xbb4/0x16b0 net/core/filter.c:2164
____bpf_clone_redirect net/core/filter.c:2448 [inline]
bpf_clone_redirect+0x4a1/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
clocksource: timekeeping watchdog on CPU0: Marking clocksource 'tsc' as unstable because the skew is too large:
clocksource: 'acpi_pm' wd_now: 4af654 wd_last: 7e75f4 mask: ffffff
clocksource: 'tsc' cs_now: 23b85f200b2 cs_last: 23984a989d4 mask: ffffffffffffffff
tsc: Marking TSC unstable due to clocksource watchdog
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 22840 Comm: kworker/0:4 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
do_softirq+0x123/0x1c0 kernel/softirq.c:248
__local_bh_enable_ip+0xa1/0xb0 kernel/softirq.c:198
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
_raw_spin_unlock_bh+0x4b/0x60 kernel/locking/spinlock.c:207
spin_unlock_bh include/linux/spinlock.h:399 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:585 [inline]
nsim_dev_trap_report_work+0xc4e/0x1180 drivers/net/netdevsim/dev.c:611
process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 24138 Comm: syz-executor.5 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
invoke_softirq kernel/softirq.c:221 [inline]
__irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422
irq_exit_rcu+0xe/0x10 kernel/softirq.c:434
sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__msan_chain_origin+0x7c/0xa0 mm/kmsan/kmsan_instr.c:150
Code: ff ff 89 c3 e8 35 eb ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1e e8 e0 e1 0b ff 41 f7 c7 00 02 00 00 74 01 fb 89 d8 <48> 83 c4 08 5b 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 39 19 7c 90 31 c0
RSP: 0018:ffff8880a3f73248 EFLAGS: 00000206
RAX: 00000000245d0197 RBX: 00000000245d0197 RCX: 0000000014430197
RDX: 0000000000000a20 RSI: 0000000000000000 RDI: 00000000045d0197
RBP: ffff8880a3f73268 R08: 0000000000000003 R09: ffff8880a3f72ffc
R10: 000000009cb7a2be R11: ffffffff8fc00715 R12: ffff888080b027a0
R13: ffff888080b02700 R14: 0000000014430197 R15: 0000000000000246
__skb_clone+0x7d4/0x9b0 net/core/skbuff.c:1047
skb_clone+0x435/0x650 net/core/skbuff.c:1503
____bpf_clone_redirect net/core/filter.c:2433 [inline]
bpf_clone_redirect+0x188/0x660 net/core/filter.c:2420
___bpf_prog_run+0x2b78/0xb950 kernel/bpf/core.c:1525
__bpf_prog_run512+0x12e/0x190 kernel/bpf/core.c:1750
bpf_test_run+0x53f/0xe60 include/linux/filter.h:770
bpf_prog_test_run_skb+0x1914/0x3500 net/bpf/test_run.c:582
bpf_prog_test_run kernel/bpf/syscall.c:3132 [inline]
__do_sys_bpf+0xbe6f/0x1aba0 kernel/bpf/syscall.c:4411
__se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4351
__ia32_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4351
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142
do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc9549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55c35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000165
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000040
RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 11 Comm: ksoftirqd/0 Tainted: G B W 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
run_ksoftirqd+0x20/0x40 kernel/softirq.c:652
smpboot_thread_fn+0x5f5/0xa90 kernel/smpboot.c:165
kthread+0x521/0x560 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104
kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76
slab_alloc_node mm/slub.c:2922 [inline]
__kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609
kmalloc_reserve net/core/skbuff.c:353 [inline]
pskb_expand_head+0x25e/0x1e20 net/core/skbuff.c:1676
netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699
do_xdp_generic net/core/dev.c:4816 [inline]
__netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207
__netif_receive_skb_one_core net/core/dev.c:5382 [inline]
__netif_receive_skb+0xf2/0x640 net/core/dev.c:5498
process_backlog+0x517/0xbd0 net/core/dev.c:6365
__napi_poll+0x13e/0xca0 net/core/dev.c:6912
napi_poll net/core/dev.c:6979 [inline]
net_rx_action+0x726/0x14a0 net/core/dev.c:7065
__do_softirq+0x1b9/0x715 kernel/softirq.c:345
=====================================================