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Vulnerability Change Records for CVE-2022-48978

Change History

New CVE Received from kernel.org 10/21/2024 4:15:09 PM

Action Type Old Value New Value
Added Description

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

HID: core: fix shift-out-of-bounds in hid_report_raw_event

Syzbot reported shift-out-of-bounds in hid_report_raw_event.

microsoft 0003:045E:07DA.0001: hid_field_extract() called with n (128) >
32! (swapper/0)
======================================================================
UBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:1323:20
shift exponent 127 is too large for 32-bit type 'int'
CPU: 0 PID: 0 Comm: swapper/0 Not tainted
6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS
Google 10/26/2022
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x3a6/0x420 lib/ubsan.c:322
 snto32 drivers/hid/hid-core.c:1323 [inline]
 hid_input_fetch_field drivers/hid/hid-core.c:1572 [inline]
 hid_process_report drivers/hid/hid-core.c:1665 [inline]
 hid_report_raw_event+0xd56/0x18b0 drivers/hid/hid-core.c:1998
 hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066
 hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284
 __usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671
 dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers+0x76a/0x980 kernel/time/timer.c:1790
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
 __do_softirq+0x277/0x75b kernel/softirq.c:571
 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
======================================================================

If the size of the integer (unsigned n) is bigger than 32 in snto32(),
shift exponent will be too large for 32-bit type 'int', resulting in a
shift-out-of-bounds bug.
Fix this by adding a check on the size of the integer (unsigned n) in
snto32(). To add support for n greater than 32 bits, set n to 32, if n
is greater than 32.
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/151493fe5a6ed1a88decc929a7368a3f2a246914 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/2b3b4d7aadaa1b6b58d0f34823bf86cfe8a31b4d [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/809783f8b4b600c7fb3bccb10fefef822601ea3b [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/8e14f20e12224ee2429f75a5c9418a700e26a8d3 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/bc03f809da78fc79e4aee132d4e5c6a2b3aeec73 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/db1ed1b3fb4ec0d19080a102956255769bc45c79 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/ec61b41918587be530398b0d1c9a0d16619397e5 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/f755d11c55b29049b77da5cd9ab2faae96eb33c3 [No types assigned]