syzbot
BUG: unable to handle kernel paging request in e1000_get_cfg_done_82571
Status:
upstream: reported on 2026/08/06 15:37
Subsystems:
intel-wired-lan
[Documentation on labels]
Reported-by: syzbot+8ce4dba751e79facdc38@syzkaller.appspotmail.com
First crash: 2d19h, last: 2d19h
Sample crash report:
e1000e 0000:00:03.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
e1000e 0000:00:03.0 0000:00:03.0 (uninitialized): Failed to initialize MSI interrupts. Falling back to legacy interrupts.
e1000e 0000:00:03.0: The NVM Checksum Is Not Valid
BUG: unable to handle page fault for address: ffffc900014c70b0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 1b000067 P4D 1b000067 PUD 1c2b9067 PMD 313cf067 PTE 0
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 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+0x42/0x130 drivers/net/ethernet/intel/e1000e/82571.c:850
Code: fc ff df e8 a0 97 f9 fa 4c 8d 73 08 bd 9d ff ff ff 4d 89 f4 49 c1 ec 03 43 80 3c 3c 00 74 08 4c 89 f7 e8 21 ca 68 fb 49 8b 06 <44> 8b a8 10 10 00 00 44 89 ee 81 e6 00 00 04 00 31 ff e8 a7 9b f9
RSP: 0018:ffffc9000e0bf828 EFLAGS: 00010246
RAX: ffffc900014c60a0 RBX: ffff888012ea95b8 RCX: 0000000000100000
RDX: ffffc9000f08a000 RSI: 000000000007b7ca RDI: 000000000007b7cb
RBP: 00000000ffffff9d R08: ffffffff9057c237 R09: 1ffffffff20af846
R10: dffffc0000000000 R11: ffffffff86cd8b00 R12: 1ffff110025d52b8
R13: ffff888012ea8ec0 R14: ffff888012ea95c0 R15: dffffc0000000000
FS: 00007f43c9d9e6c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900014c70b0 CR3: 0000000045878000 CR4: 0000000000352ef0
Call Trace:
<TASK>
e1000_phy_hw_reset drivers/net/ethernet/intel/e1000e/e1000.h:542 [inline]
e1000_probe+0x1fb5/0x2b20 drivers/net/ethernet/intel/e1000e/netdev.c:7725
local_pci_probe drivers/pci/pci-driver.c:332 [inline]
pci_call_probe drivers/pci/pci-driver.c:394 [inline]
__pci_device_probe drivers/pci/pci-driver.c:455 [inline]
pci_device_probe+0x431/0xc90 drivers/pci/pci-driver.c:489
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1203
bind_store+0x1d0/0x220 drivers/base/bus.c:267
kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f43c8f9e019
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:00007f43c9d9dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f43c9225fa0 RCX: 00007f43c8f9e019
RDX: 000000000000000d RSI: 0000200000000240 RDI: 0000000000000005
RBP: 00007f43c903500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f43c9226038 R14: 00007f43c9225fa0 R15: 00007ffc48486068
</TASK>
Modules linked in:
CR2: ffffc900014c70b0
---[ 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+0x42/0x130 drivers/net/ethernet/intel/e1000e/82571.c:850
Code: fc ff df e8 a0 97 f9 fa 4c 8d 73 08 bd 9d ff ff ff 4d 89 f4 49 c1 ec 03 43 80 3c 3c 00 74 08 4c 89 f7 e8 21 ca 68 fb 49 8b 06 <44> 8b a8 10 10 00 00 44 89 ee 81 e6 00 00 04 00 31 ff e8 a7 9b f9
RSP: 0018:ffffc9000e0bf828 EFLAGS: 00010246
RAX: ffffc900014c60a0 RBX: ffff888012ea95b8 RCX: 0000000000100000
RDX: ffffc9000f08a000 RSI: 000000000007b7ca RDI: 000000000007b7cb
RBP: 00000000ffffff9d R08: ffffffff9057c237 R09: 1ffffffff20af846
R10: dffffc0000000000 R11: ffffffff86cd8b00 R12: 1ffff110025d52b8
R13: ffff888012ea8ec0 R14: ffff888012ea95c0 R15: dffffc0000000000
FS: 00007f43c9d9e6c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900014c70b0 CR3: 0000000045878000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess), 3 bytes skipped:
0: e8 a0 97 f9 fa call 0xfaf997a5
5: 4c 8d 73 08 lea 0x8(%rbx),%r14
9: bd 9d ff ff ff mov $0xffffff9d,%ebp
e: 4d 89 f4 mov %r14,%r12
11: 49 c1 ec 03 shr $0x3,%r12
15: 43 80 3c 3c 00 cmpb $0x0,(%r12,%r15,1)
1a: 74 08 je 0x24
1c: 4c 89 f7 mov %r14,%rdi
1f: e8 21 ca 68 fb call 0xfb68ca45
24: 49 8b 06 mov (%r14),%rax
* 27: 44 8b a8 10 10 00 00 mov 0x1010(%rax),%r13d <-- trapping instruction
2e: 44 89 ee mov %r13d,%esi
31: 81 e6 00 00 04 00 and $0x40000,%esi
37: 31 ff xor %edi,%edi
39: e8 .byte 0xe8
3a: a7 cmpsl %es:(%rdi),%ds:(%rsi)
3b: 9b fwait
3c: f9 stc
* Struck through repros no longer work on HEAD.