netdev - BUG: leak checking failed

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Date: Wed, 13 Sep 2023 15:17:03 +0800 (GMT+08:00)
From: "Teng Wang" <wangteng13@...t.edu.cn>
To: edumazet@...gle.com, brauner@...nel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: BUG: leak checking failed

Hello,

I modified the sysctl.conf file and ran syzkaller. Then it detected this bug. This bug was found in linux kernel v6.2.10

I haven't found similar emails on lore.kernel.org, so I report this bug. I attached the sysctl.conf file and hope it can help.




21:35:47 executing program 1:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/self/exe\x00', 0x0, 0x0)
ioctl$EXT4_IOC_GETFSUUID(r0, 0x8008662c, &(0x7f0000000440))
fchmod(r0, 0x104)

BUG: leak checking failed

VM DIAGNOSIS:
14:35:52  Registers:
info registers vcpu 0
RAX=ffffffff864d0240 RBX=0000000000000000 RCX=ffffffff854e6b77 RDX=0000000000000000
RSI=ffffffff86b80da1 RDI=00000000001a0024 RBP=0000000000000000 RSP=ffffffff86e03e88
R8 =0000000000000000 R9 =0000000000000007 R10=0000000000000000 R11=0000000000000000
R12=ffffffffffffffff R13=00000000fffffff0 R14=0000000000000000 R15=ffffffff86e14a00
RIP=ffffffff864d024b RFL=00000242 [---Z---] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 ffffffff 00000000
FS =0000 0000000000000000 ffffffff 00000000
GS =0000 ffff95187dc00000 ffffffff 00000000
LDT=0000 0000000000000000 000fffff 00000000
TR =0040 fffffe62db4c8000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe62db4c6000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=0000000001957c58 CR3=00000000018da005 CR4=003706f0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00009fc0
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000ff0000000000
XMM02=00000000000000000000ff0000000000 XMM03=00000000000000000000ff0000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000210000656369767265
XMM06=732e646c616e72756f6a2d646d657473 XMM07=00000000000000000000000000000000
XMM08=00000000202000000000200000000000 XMM09=ffff00ffffff00000000ffffff00ffff
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000
info registers vcpu 1
RAX=ffffffff864d0240 RBX=0000000000000000 RCX=ffffffff854e6b77 RDX=0000000000000000
RSI=ffffffff86b80da1 RDI=000000000023b4bc RBP=0000000000000001 RSP=ffffb27f40083ee0
R8 =0000000000000000 R9 =ffff95187dd2a140 R10=ffffb27f40073df0 R11=0000000000000000
R12=ffffffffffffffff R13=00000000fffffff0 R14=0000000000000000 R15=ffff9518012b0000
RIP=ffffffff864d024b RFL=00000252 [---ZA--] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0000 0000000000000000 ffffffff 00000000
FS =0000 0000000000000000 ffffffff 00000000
GS =0000 ffff95187dd00000 ffffffff 00000000
LDT=0000 0000000000000000 000fffff 00000000
TR =0040 fffffe22c8adf000 00004087 00008b00 DPL=0 TSS64-busy
GDT=     fffffe22c8add000 0000007f
IDT=     fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffc5684fea4 CR3=0000000009422003 CR4=003706e0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=0a64656c69616620676e696b63656863
XMM02=3d293038303030303030303066377830 XMM03=0a29307830202c307830202c27303078
XMM04=6863660a292930343430303030303030 XMM05=7830202c307228444955555346544547
XMM06=29307830202c307830202c273030785c XMM07=29303830303030303030306637783028
XMM08=30303030303030663778302826202c30 XMM09=cf2a35d60263a1d6d85351d6ca62c1d6
XMM10=00000000000000000000000000000000 XMM11=ca62c1d6ca62c1d6ca62c1d6ca62c1d6
XMM12=00000042000000420000004200000042 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000












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