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Message-ID: <70a434e017d75a94b5e246ad7a678b752fe97d30.camel@huaweicloud.com>
Date: Tue, 03 Sep 2024 11:06:20 +0200
From: Roberto Sassu <roberto.sassu@...weicloud.com>
To: Xingyu Li <xli399@....edu>
Cc: zohar@...ux.ibm.com, roberto.sassu@...wei.com,
dmitry.kasatkin@...il.com, eric.snowberg@...cle.com, paul@...l-moore.com,
jmorris@...ei.org, serge@...lyn.com, linux-integrity@...r.kernel.org,
linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org, Yu
Hao <yhao016@....edu>
Subject: Re: WARNING in process_measurement
On Thu, 2024-08-29 at 16:28 -0700, Xingyu Li wrote:
> Here is the config file:
> https://gist.github.com/TomAPU/64f5db0fe976a3e94a6dd2b621887cdd
Thanks, still cannot reproduce:
13151 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0
13151 close(5) = 0
13151 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36
13151 recvfrom(4, [{nlmsg_len=56, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=13151}, {error=-EBUSY, msg=[{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"]}], 4096, 0, NULL, NULL) = 56
I also get:
[ 824.654761] ieee802154 phy0 wpan0: encryption failed: -22
[ 824.655606] ieee802154 phy1 wpan1: encryption failed: -22
Roberto
> On Thu, Aug 29, 2024 at 5:56 AM Roberto Sassu
> <roberto.sassu@...weicloud.com> wrote:
> >
> > On 8/29/2024 12:53 PM, Xingyu Li wrote:
> > > The above syzkaller reproducer needs additional support. And here is
> > > the C reproducer:
> > > https://gist.github.com/freexxxyyy/c3d1ccb8104af6b0d51ed50c29b363d3
> >
> > Hi Xingyu
> >
> > do you have a .config for testing?
> >
> > Thanks
> >
> > Roberto
> >
> > > On Sat, Aug 24, 2024 at 10:23 PM Xingyu Li <xli399@....edu> wrote:
> > > >
> > > > Hi,
> > > >
> > > > We found a bug in Linux 6.10. This is likely a mutex corruption bug,
> > > > where the mutex's internal state has been compromised, leading to an
> > > > integrity check failure. The bug occurs in
> > > > https://elixir.bootlin.com/linux/v6.10/source/security/integrity/ima/ima_main.c#L269.
> > > >
> > > > The bug report and syzkaller reproducer are as follows:
> > > >
> > > > Bug report:
> > > >
> > > > DEBUG_LOCKS_WARN_ON(lock->magic != lock)
> > > > WARNING: CPU: 0 PID: 8057 at kernel/locking/mutex.c:587
> > > > __mutex_lock_common kernel/locking/mutex.c:587 [inline]
> > > > WARNING: CPU: 0 PID: 8057 at kernel/locking/mutex.c:587
> > > > __mutex_lock+0xc2d/0xd50 kernel/locking/mutex.c:752
> > > > Modules linked in:
> > > > CPU: 0 PID: 8057 Comm: cron Not tainted 6.10.0 #13
> > > > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
> > > > RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:587 [inline]
> > > > RIP: 0010:__mutex_lock+0xc2d/0xd50 kernel/locking/mutex.c:752
> > > > Code: 04 20 84 c0 0f 85 13 01 00 00 83 3d fc e5 23 04 00 0f 85 e9 f4
> > > > ff ff 48 c7 c7 60 70 4c 8b 48 c7 c6 e0 70 4c 8b e8 83 f4 54 f6 <0f> 0b
> > > > e9 cf f4 ff ff 0f 0b e9 dc f8 ff ff 0f 0b e9 5b f5 ff ff 48
> > > > RSP: 0018:ffffc9000aa77380 EFLAGS: 00010246
> > > > RAX: 26a6b2d2d0cdac00 RBX: 0000000000000000 RCX: ffff8880241e5a00
> > > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> > > > RBP: ffffc9000aa774d0 R08: ffffffff8155a25a R09: 1ffff1100c74519a
> > > > R10: dffffc0000000000 R11: ffffed100c74519b R12: dffffc0000000000
> > > > R13: ffff888020efc330 R14: 0000000000000000 R15: 1ffff9200154eeb8
> > > > FS: 00007f902ffb1840(0000) GS:ffff888063a00000(0000) knlGS:0000000000000000
> > > > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > > > CR2: 00007f902fb7e06a CR3: 0000000018c3c000 CR4: 0000000000350ef0
> > > > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > > > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > > > Call Trace:
> > > > <TASK>
> > > > process_measurement+0x536/0x1ff0 security/integrity/ima/ima_main.c:269
> > > > ima_file_check+0xec/0x170 security/integrity/ima/ima_main.c:572
> > > > security_file_post_open+0x51/0xb0 security/security.c:2982
> > > > do_open fs/namei.c:3656 [inline]
> > > > path_openat+0x2c0b/0x3580 fs/namei.c:3813
> > > > do_filp_open+0x22d/0x480 fs/namei.c:3840
> > > > do_sys_openat2+0x13a/0x1c0 fs/open.c:1413
> > > > do_sys_open fs/open.c:1428 [inline]
> > > > __do_sys_openat fs/open.c:1444 [inline]
> > > > __se_sys_openat fs/open.c:1439 [inline]
> > > > __x64_sys_openat+0x243/0x290 fs/open.c:1439
> > > > do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> > > > do_syscall_64+0x7e/0x150 arch/x86/entry/common.c:83
> > > > entry_SYSCALL_64_after_hwframe+0x67/0x6f
> > > > RIP: 0033:0x7f903019a167
> > > > Code: 25 00 00 41 00 3d 00 00 41 00 74 47 64 8b 04 25 18 00 00 00 85
> > > > c0 75 6b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d
> > > > 00 f0 ff ff 0f 87 95 00 00 00 48 8b 4c 24 28 64 48 2b 0c 25
> > > > RSP: 002b:00007fff194600a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> > > > RAX: ffffffffffffffda RBX: 0000564dd2fb9cf0 RCX: 00007f903019a167
> > > > RDX: 0000000000000000 RSI: 00007f902fb7e103 RDI: 00000000ffffff9c
> > > > RBP: 00007f902fb7e103 R08: 0000000000000008 R09: 0000000000000001
> > > > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
> > > > R13: 0000564dd2fb9cf0 R14: 0000000000000001 R15: 0000000000000000
> > > > </TASK>
> > > >
> > > >
> > > > Syzkaller reproducer:
> > > > # {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1
> > > > Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false
> > > > NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false
> > > > KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false
> > > > Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true
> > > > HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false
> > > > FaultCall:0 FaultNth:0}}
> > > > r0 = openat$ptmx(0xffffffffffffff9c, 0x0, 0x141040, 0x0)
> > > > ioctl$TIOCSETD(r0, 0x5423, 0x0)
> > > > mmap$IORING_OFF_CQ_RING(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2,
> > > > 0x20031, 0xffffffffffffffff, 0x8000000)
> > > > mmap$IORING_OFF_SQ_RING(&(0x7f0000ff4000/0xc000)=nil, 0xc000, 0xe,
> > > > 0x12, 0xffffffffffffffff, 0x0)
> > > > openat$sndseq(0xffffffffffffff9c, 0x0, 0x902)
> > > > write$syz_spec_18446744072532934322_80(0xffffffffffffffff,
> > > > &(0x7f0000000000)="2b952480c7ca55097d1707935ba64b20f3026c03d658026b81bf264340512b3cb4e01afda2de754299ea7a113343ab7b9bda2fc0a2e2cdbfecbca0233a0772b12ebde5d98a1203cb871672dff7e4c86ec1dccef0a76312fbe8d45dc2bd0f8fc2ebeb2a6be6a300916c5281da2c1ef64d66267091b82429976c019da3645557ed1d439c5a637f6bf58c53bc414539dd87c69098d671402586b631f9ac5c2fe9cedc281a6f005b5c4d1dd5ed9be400",
> > > > 0xb4)
> > > > r1 = syz_open_dev$sg(&(0x7f00000003c0), 0x0, 0x8000)
> > > > ioctl$syz_spec_1724254976_2866(r1, 0x1, &(0x7f0000000080)={0x0, 0x2,
> > > > [0x85, 0x8, 0x15, 0xd]})
> > > > ioctl$KDGKBDIACR(0xffffffffffffffff, 0x4bfa, 0x0)
> > > >
> > > >
> > > > --
> > > > Yours sincerely,
> > > > Xingyu
> > >
> > >
> > >
> >
>
>
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