cve/published/2023/CVE-2023-53119.mbox

From bippy-1.1.0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@kernel.org>
To: <linux-cve-announce@vger.kernel.org>
Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org>
Subject: CVE-2023-53119: nfc: pn533: initialize struct pn533_out_arg properly

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

nfc: pn533: initialize struct pn533_out_arg properly

struct pn533_out_arg used as a temporary context for out_urb is not
initialized properly. Its uninitialized 'phy' field can be dereferenced in
error cases inside pn533_out_complete() callback function. It causes the
following failure:

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc3-next-20230110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:pn533_out_complete.cold+0x15/0x44 drivers/nfc/pn533/usb.c:441
Call Trace:
 <IRQ>
 __usb_hcd_giveback_urb+0x2b6/0x5c0 drivers/usb/core/hcd.c:1671
 usb_hcd_giveback_urb+0x384/0x430 drivers/usb/core/hcd.c:1754
 dummy_timer+0x1203/0x32d0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x1da/0x800 kernel/time/timer.c:1700
 expire_timers+0x234/0x330 kernel/time/timer.c:1751
 __run_timers kernel/time/timer.c:2022 [inline]
 __run_timers kernel/time/timer.c:1995 [inline]
 run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
 __do_softirq+0x1fb/0xaf6 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107

Initialize the field with the pn533_usb_phy currently used.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

The Linux kernel CVE team has assigned CVE-2023-53119 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 4.14.303 with commit 35529d6b827eedb6bf7e81130e4b7e0aba9e58d2 and fixed in 4.14.311 with commit 2bd1ed6d607d7013ed4959e86990a04f028543ef
	Issue introduced in 4.19.270 with commit 321db5131c92983dac4f3338e8fbb6df214238c0 and fixed in 4.19.279 with commit 4c20a07ed26a71a8ccc9c6d935fc181573f5462e
	Issue introduced in 5.4.229 with commit 9424d2205fe94a095fb9365ec0c6137f0b394a2b and fixed in 5.4.238 with commit 0f9c1f26d434c32520dfe33326b28c5954bc4299
	Issue introduced in 5.10.164 with commit 0ca78c99656f5c448567db1e148367aa3b01c80a and fixed in 5.10.176 with commit 2703da78849c47b6b5b4471edb35fc7b7f91dead
	Issue introduced in 5.15.89 with commit 39ae73e581112cfe27ba50aecb1c891ce57cecb1 and fixed in 5.15.104 with commit 2bee84369b76f6c9ef71938069c65a6ebd1a12f7
	Issue introduced in 6.1.7 with commit 8998db5021a28ad67aa8d627bdb4226e4046ccc4 and fixed in 6.1.21 with commit a97ef110c491b72c138111a595a3a3af56cbc94c
	Issue introduced in 6.2 with commit 9dab880d675b9d0dd56c6428e4e8352a3339371d and fixed in 6.2.8 with commit 2cbd4213baf7be5d87d183e2032c54003de0790f
	Issue introduced in 6.2 with commit 9dab880d675b9d0dd56c6428e4e8352a3339371d and fixed in 6.3 with commit 484b7059796e3bc1cb527caa61dfc60da649b4f6

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2023-53119
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/nfc/pn533/usb.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/2bd1ed6d607d7013ed4959e86990a04f028543ef
	https://git.kernel.org/stable/c/4c20a07ed26a71a8ccc9c6d935fc181573f5462e
	https://git.kernel.org/stable/c/0f9c1f26d434c32520dfe33326b28c5954bc4299
	https://git.kernel.org/stable/c/2703da78849c47b6b5b4471edb35fc7b7f91dead
	https://git.kernel.org/stable/c/2bee84369b76f6c9ef71938069c65a6ebd1a12f7
	https://git.kernel.org/stable/c/a97ef110c491b72c138111a595a3a3af56cbc94c
	https://git.kernel.org/stable/c/2cbd4213baf7be5d87d183e2032c54003de0790f
	https://git.kernel.org/stable/c/484b7059796e3bc1cb527caa61dfc60da649b4f6