------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at ./include/linux/skbuff.h:5155 skb_checksum_none_assert include/linux/skbuff.h:5155 [inline] WARNING: CPU: 1 PID: 0 at ./include/linux/skbuff.h:5155 e1000_rx_checksum.constprop.0+0x176/0x1e0 drivers/net/ethernet/intel/e1000/e1000_main.c:3954 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc2-syzkaller-00041-g4dc1d1bec898 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:skb_checksum_none_assert include/linux/skbuff.h:5155 [inline] RIP: 0010:e1000_rx_checksum.constprop.0+0x176/0x1e0 drivers/net/ethernet/intel/e1000/e1000_main.c:3954 Code: 00 00 00 00 fc ff df 80 3c 02 00 75 76 48 83 85 b0 04 00 00 01 5b 5d 41 5c 41 5d 41 5e 41 5f e9 e0 6e 33 fb e8 db 6e 33 fb 90 <0f> 0b 90 e9 e7 fe ff ff e8 cd 6e 33 fb 48 8d bd a8 04 00 00 48 b8 RSP: 0018:ffffc900006b0a30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000007 RCX: ffffffff868663ec RDX: ffff88801d2b4880 RSI: ffffffff86866505 RDI: 0000000000000001 RBP: ffff888107a08d80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000020 R11: 0000000000000000 R12: ffff888035a5d7c0 R13: 0000000000000020 R14: ffff888035a5d840 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0958da2060 CR3: 0000000040c66000 CR4: 0000000000352ef0 Call Trace: e1000_clean_jumbo_rx_irq+0xf3e/0x28c0 drivers/net/ethernet/intel/e1000/e1000_main.c:4275 e1000_clean+0x9d6/0x2700 drivers/net/ethernet/intel/e1000/e1000_main.c:3807 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0xa94/0x1010 net/core/dev.c:7297 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 common_interrupt+0xbf/0xe0 arch/x86/kernel/irq.c:278 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline] RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:744 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 13 20 10 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffc90000187e08 EFLAGS: 00000206 RAX: 000000000016d7bb RBX: 0000000000000001 RCX: ffffffff8b567469 RDX: 0000000000000000 RSI: ffffffff8b6ced20 RDI: ffffffff8bd35100 RBP: ffffed1003a56910 R08: 0000000000000001 R09: ffffed100d4e6f85 R10: ffff88806a737c2b R11: 0000000000000000 R12: 0000000000000001 R13: ffff88801d2b4880 R14: ffffffff90623910 R15: 0000000000000000 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:185 [inline] do_idle+0x329/0x3f0 kernel/sched/idle.c:325 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423 start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315 common_startup_64+0x13e/0x148 ---------------- Code disassembly (best guess): 0: 4c 01 c7 add %r8,%rdi 3: 4c 29 c2 sub %r8,%rdx 6: e9 72 ff ff ff jmp 0xffffff7d b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 13 20 10 00 verw 0x102013(%rip) # 0x10203b 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 37: 00 00 00 00 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop