From: syzbot <syzbot+8ce4dba751e79facdc38@syzkaller.appspotmail.com>
To: andrew+netdev@lunn.ch, andrew@lunn.ch,
anthony.l.nguyen@intel.com, davem@davemloft.net,
edumazet@google.com, intel-wired-lan-owner@osuosl.org,
intel-wired-lan@lists.osuosl.org, kuba@kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
pabeni@redhat.com, przemyslaw.kitszel@intel.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [intel-wired-lan?] BUG: unable to handle kernel paging request in e1000_get_cfg_done_82571
Date: Sun, 16 Aug 2026 00:29:23 -0700 [thread overview]
Message-ID: <6a8166d3.f7a79266.2f965f.000f.GAE@google.com> (raw)
In-Reply-To: <6a74aa44.01d0871a.3a0d52.0029.GAE@google.com>
syzbot has found a reproducer for the following issue on:
HEAD commit: 3eb40771c00a Merge tag 'soc-fixes-7.2-3' of git://git.kern..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1553c6c6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=1d67342c314f228d
dashboard link: https://syzkaller.appspot.com/bug?extid=8ce4dba751e79facdc38
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c39279580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17167279580000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-3eb40771.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/08eda747d304/vmlinux-3eb40771.xz
kernel image: https://storage.googleapis.com/syzbot-assets/24378ecbcb01/bzImage-3eb40771.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8ce4dba751e79facdc38@syzkaller.appspotmail.com
e1000e 0000:00:03.0: The NVM Checksum Is Not Valid
BUG: unable to handle page fault for address: ffffc9000374c0b0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 1c000067 P4D 1c000067 PUD 1d6a8067 PMD 2645e067 PTE 0
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 5948 Comm: syz.3.20 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:readl arch/x86/include/asm/io.h:59 [inline]
RIP: 0010:__er32 drivers/net/ethernet/intel/e1000e/e1000.h:604 [inline]
RIP: 0010:e1000_get_cfg_done_82571+0x68/0x150 drivers/net/ethernet/intel/e1000e/82571.c:850
Code: 00 00 ba 02 00 00 00 e8 c6 6e c5 04 31 ff 89 ee e8 3d 77 10 fb 85 ed 74 4e e8 c4 7c 10 fb 41 80 7d 00 00 75 5e 49 8b 44 24 08 <8b> 98 10 10 00 00 81 e3 00 00 04 00 31 ff 89 de e8 13 77 10 fb 85
RSP: 0018:ffffc90003737850 EFLAGS: 00010246
RAX: ffffc9000374b0a0 RBX: ffff88802c8d15b8 RCX: ffffffff86ffdd0d
RDX: ffff888024450000 RSI: ffffffff86f9f6bc RDI: ffff88802c8d15b8
RBP: 0000000000000064 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802c8d15b8
R13: ffffed100591a2b8 R14: ffff88802c8d15c0 R15: 1ffff920006e6f25
FS: 00007f474f1f86c0(0000) GS:ffff8880d5cde000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000374c0b0 CR3: 000000002793c000 CR4: 0000000000352ef0
Call Trace:
<TASK>
e1000e_phy_hw_reset_generic+0x1f2/0x260 drivers/net/ethernet/intel/e1000e/phy.c:2167
e1000_phy_hw_reset drivers/net/ethernet/intel/e1000e/e1000.h:542 [inline]
e1000_probe+0x2446/0x36b0 drivers/net/ethernet/intel/e1000e/netdev.c:7725
local_pci_probe+0xdd/0x1b0 drivers/pci/pci-driver.c:332
pci_call_probe+0x176/0x800 drivers/pci/pci-driver.c:394
__pci_device_probe drivers/pci/pci-driver.c:455 [inline]
pci_device_probe+0x1cd/0x370 drivers/pci/pci-driver.c:489
call_driver_probe drivers/base/dd.c:628 [inline]
really_probe+0x241/0xa60 drivers/base/dd.c:706
__driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
device_driver_attach+0xd1/0x220 drivers/base/dd.c:1203
bind_store+0xf4/0x190 drivers/base/bus.c:267
drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x6ac/0x1050 fs/read_write.c:687
ksys_write+0x12a/0x250 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f474e39e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f474f1f8028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f474e625fa0 RCX: 00007f474e39e0d9
RDX: 000000000000000d RSI: 0000200000000240 RDI: 0000000000000005
RBP: 00007f474e435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f474e626038 R14: 00007f474e625fa0 R15: 00007fff59364b48
</TASK>
Modules linked in:
CR2: ffffc9000374c0b0
---[ end trace 0000000000000000 ]---
RIP: 0010:readl arch/x86/include/asm/io.h:59 [inline]
RIP: 0010:__er32 drivers/net/ethernet/intel/e1000e/e1000.h:604 [inline]
RIP: 0010:e1000_get_cfg_done_82571+0x68/0x150 drivers/net/ethernet/intel/e1000e/82571.c:850
Code: 00 00 ba 02 00 00 00 e8 c6 6e c5 04 31 ff 89 ee e8 3d 77 10 fb 85 ed 74 4e e8 c4 7c 10 fb 41 80 7d 00 00 75 5e 49 8b 44 24 08 <8b> 98 10 10 00 00 81 e3 00 00 04 00 31 ff 89 de e8 13 77 10 fb 85
RSP: 0018:ffffc90003737850 EFLAGS: 00010246
RAX: ffffc9000374b0a0 RBX: ffff88802c8d15b8 RCX: ffffffff86ffdd0d
RDX: ffff888024450000 RSI: ffffffff86f9f6bc RDI: ffff88802c8d15b8
RBP: 0000000000000064 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802c8d15b8
R13: ffffed100591a2b8 R14: ffff88802c8d15c0 R15: 1ffff920006e6f25
FS: 00007f474f1f86c0(0000) GS:ffff8880d5cde000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000374c0b0 CR3: 000000002793c000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: ba 02 00 00 00 mov $0x2,%edx
7: e8 c6 6e c5 04 call 0x4c56ed2
c: 31 ff xor %edi,%edi
e: 89 ee mov %ebp,%esi
10: e8 3d 77 10 fb call 0xfb107752
15: 85 ed test %ebp,%ebp
17: 74 4e je 0x67
19: e8 c4 7c 10 fb call 0xfb107ce2
1e: 41 80 7d 00 00 cmpb $0x0,0x0(%r13)
23: 75 5e jne 0x83
25: 49 8b 44 24 08 mov 0x8(%r12),%rax
* 2a: 8b 98 10 10 00 00 mov 0x1010(%rax),%ebx <-- trapping instruction
30: 81 e3 00 00 04 00 and $0x40000,%ebx
36: 31 ff xor %edi,%edi
38: 89 de mov %ebx,%esi
3a: e8 13 77 10 fb call 0xfb107752
3f: 85 .byte 0x85
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
prev parent reply other threads:[~2026-08-16 7:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-06 15:37 [syzbot] [intel-wired-lan?] BUG: unable to handle kernel paging request in e1000_get_cfg_done_82571 syzbot
2026-08-06 15:37 ` [Intel-wired-lan] " syzbot
2026-08-16 6:41 ` syzbot
2026-08-16 7:29 ` syzbot [this message]
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