=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 11224 Comm: syz-executor.2 Tainted: G 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:118
__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:_raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:192
Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 21 da b6 f2 eb be 44 89 f7 e8 17 da b6
RSP: 0018:ffff888172d0b830 EFLAGS: 00000206
RAX: ffff88823fe6e700 RBX: 0000000000000000 RCX: 000000023fdce700
RDX: ffff88823fdce700 RSI: 0000000000000270 RDI: ffff88813fc1d700
RBP: ffff888172d0b848 R08: ffffea000000000f R09: ffff88813fffa000
R10: 000000008d490c19 R11: 0000000000000000 R12: ffff88813fc1d700
R13: ffff888172d1b8e8 R14: 0000000000000000 R15: 0000000000000200
unlock_hrtimer_base kernel/time/hrtimer.c:915 [inline]
hrtimer_start_range_ns+0x44f/0x4d0 kernel/time/hrtimer.c:1153
hrtimer_start include/linux/hrtimer.h:422 [inline]
j1939_tp_schedule_txtimer+0x135/0x1b0 net/can/j1939/transport.c:679
j1939_sk_send_loop net/can/j1939/socket.c:1062 [inline]
j1939_sk_sendmsg+0x1c34/0x2890 net/can/j1939/socket.c:1175
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg net/socket.c:674 [inline]
____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350
___sys_sendmsg net/socket.c:2404 [inline]
__sys_sendmsg+0x714/0x830 net/socket.c:2433
__compat_sys_sendmsg net/compat.c:347 [inline]
__do_compat_sys_sendmsg net/compat.c:354 [inline]
__se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
__ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
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+0x6a/0xc0 arch/x86/entry/common.c:167
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:210
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc4549
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:00000000f55be5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
kmsan_memcpy_memmove_metadata+0x25e/0x2d0 mm/kmsan/kmsan.c:226
kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:246
__msan_memcpy+0x46/0x60 mm/kmsan/kmsan_instr.c:110
pskb_expand_head+0x3d6/0x1e20 net/core/skbuff.c:1685
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
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]
__alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424
alloc_skb include/linux/skbuff.h:1103 [inline]
alloc_skb_with_frags+0x1f3/0xc10 net/core/skbuff.c:5948
sock_alloc_send_pskb+0xdc1/0xf90 net/core/sock.c:2362
sock_alloc_send_skb+0xca/0xe0 net/core/sock.c:2379
j1939_sk_alloc_skb net/can/j1939/socket.c:858 [inline]
j1939_sk_send_loop net/can/j1939/socket.c:1040 [inline]
j1939_sk_sendmsg+0xddd/0x2890 net/can/j1939/socket.c:1175
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg net/socket.c:674 [inline]
____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350
___sys_sendmsg net/socket.c:2404 [inline]
__sys_sendmsg+0x714/0x830 net/socket.c:2433
__compat_sys_sendmsg net/compat.c:347 [inline]
__do_compat_sys_sendmsg net/compat.c:354 [inline]
__se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
__ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
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+0x6a/0xc0 arch/x86/entry/common.c:167
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:210
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751
CPU: 0 PID: 11267 Comm: syz-executor.2 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:118
__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:_raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:192
Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 21 da b6 f2 eb be 44 89 f7 e8 17 da b6
RSP: 0018:ffff888121053830 EFLAGS: 00000206
RAX: ffff88823fe6e700 RBX: 0000000000000000 RCX: 000000023fdce700
RDX: ffff88823fdce700 RSI: 0000000000000270 RDI: ffff88813fc1d700
RBP: ffff888121053848 R08: ffffea000000000f R09: ffff88813fffa000
R10: 000000008d490c19 R11: 0000000000000000 R12: ffff88813fc1d700
R13: ffff888172d190e8 R14: 0000000000000000 R15: 0000000000000200
unlock_hrtimer_base kernel/time/hrtimer.c:915 [inline]
hrtimer_start_range_ns+0x44f/0x4d0 kernel/time/hrtimer.c:1153
hrtimer_start include/linux/hrtimer.h:422 [inline]
j1939_tp_schedule_txtimer+0x135/0x1b0 net/can/j1939/transport.c:679
j1939_sk_send_loop net/can/j1939/socket.c:1062 [inline]
j1939_sk_sendmsg+0x1c34/0x2890 net/can/j1939/socket.c:1175
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg net/socket.c:674 [inline]
____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350
___sys_sendmsg net/socket.c:2404 [inline]
__sys_sendmsg+0x714/0x830 net/socket.c:2433
__compat_sys_sendmsg net/compat.c:347 [inline]
__do_compat_sys_sendmsg net/compat.c:354 [inline]
__se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
__ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
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+0x6a/0xc0 arch/x86/entry/common.c:167
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:210
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc4549
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:00000000f55be5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
kmsan_memcpy_memmove_metadata+0x25e/0x2d0 mm/kmsan/kmsan.c:226
kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:246
__msan_memcpy+0x46/0x60 mm/kmsan/kmsan_instr.c:110
pskb_expand_head+0x3d6/0x1e20 net/core/skbuff.c:1685
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
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]
__alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424
alloc_skb include/linux/skbuff.h:1103 [inline]
alloc_skb_with_frags+0x1f3/0xc10 net/core/skbuff.c:5948
sock_alloc_send_pskb+0xdc1/0xf90 net/core/sock.c:2362
sock_alloc_send_skb+0xca/0xe0 net/core/sock.c:2379
j1939_sk_alloc_skb net/can/j1939/socket.c:858 [inline]
j1939_sk_send_loop net/can/j1939/socket.c:1040 [inline]
j1939_sk_sendmsg+0xddd/0x2890 net/can/j1939/socket.c:1175
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg net/socket.c:674 [inline]
____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350
___sys_sendmsg net/socket.c:2404 [inline]
__sys_sendmsg+0x714/0x830 net/socket.c:2433
__compat_sys_sendmsg net/compat.c:347 [inline]
__do_compat_sys_sendmsg net/compat.c:354 [inline]
__se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
__ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
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+0x6a/0xc0 arch/x86/entry/common.c:167
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:210
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================
=====================================================
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:118
__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 stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
kmsan_memcpy_memmove_metadata+0x25e/0x2d0 mm/kmsan/kmsan.c:226
kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:246
__msan_memcpy+0x46/0x60 mm/kmsan/kmsan_instr.c:110
pskb_expand_head+0x3d6/0x1e20 net/core/skbuff.c:1685
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
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]
__alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424
alloc_skb include/linux/skbuff.h:1103 [inline]
alloc_skb_with_frags+0x1f3/0xc10 net/core/skbuff.c:5948
sock_alloc_send_pskb+0xdc1/0xf90 net/core/sock.c:2362
sock_alloc_send_skb+0xca/0xe0 net/core/sock.c:2379
j1939_sk_alloc_skb net/can/j1939/socket.c:858 [inline]
j1939_sk_send_loop net/can/j1939/socket.c:1040 [inline]
j1939_sk_sendmsg+0xddd/0x2890 net/can/j1939/socket.c:1175
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg net/socket.c:674 [inline]
____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350
___sys_sendmsg net/socket.c:2404 [inline]
__sys_sendmsg+0x714/0x830 net/socket.c:2433
__compat_sys_sendmsg net/compat.c:347 [inline]
__do_compat_sys_sendmsg net/compat.c:354 [inline]
__se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351
__ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351
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+0x6a/0xc0 arch/x86/entry/common.c:167
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:210
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
=====================================================