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Computer arithmetic error
In computer programming, an integer overflow occurs when an arithmetic operation on integers attempts to create a numeric value that is outside of the
Integer_overflow
Topics referred to by the same term
Look up overflow in Wiktionary, the free dictionary. Overflow may refer to: Integer overflow, a condition that occurs when an integer calculation produces
Overflow
Software development methodology
the program from improper memory reads. Integer overflow occurs when an arithmetic operation results in an integer too large to be represented within the
Secure_coding
Binary representation for signed numbers
implementations can be used on signed as well as unsigned integers and differ only in the integer overflow situations, since the sum of representations of a positive
Two's_complement
Computer software bug occurring in 2038
1 January 1970)—and store it in a signed 32-bit integer. When the data type's maximum value is exceeded, the integer will overflow to its minimum value, which systems
Year_2038_problem
Natural number
or hacking the game, results in many different outcomes caused by integer overflow. The most common outcome is the number "wrapping" into the negatives
2,147,483,647
Datum of integral data type
computer science, an integer is a datum of integral data type, a data type that represents some range of mathematical integers. Integral data types may
Integer_(computer_science)
Software anomaly
Heap overflow Integer overflow NX bit – no-execute bit for areas of memory Security-Enhanced Linux Stack overflow – when the stack itself overflows Storage
Stack_buffer_overflow
Unpredictable result when running a program
behavior, as does integer division by zero, signed integer overflow, indexing an array outside of its defined bounds (see buffer overflow), or null pointer
Undefined_behavior
Failed maiden flight of Ariane 5, 1996
code, intended only for Ariane 4, with inadequate protection against integer overflow led to an exception handled inappropriately, halting the whole otherwise
Ariane_flight_V88
Video game urban legend
recognizable video game glitches and has been used as an example of integer overflow in computer science, and was included as an Easter egg in other games
Nuclear_Gandhi
American computer scientist
is a professor at the University of Utah. He is best known for the integer overflow sanitizer which was merged into the Clang C compiler, the C compiler
John_Regehr
Cryptographic network protocol
implementations. Many of these updated implementations contained a new integer overflow vulnerability that allowed attackers to execute arbitrary code with
Secure_Shell
Method for computing the relation of two integers with their greatest common divisor
unsigned integer data type, a computer program can compute the Bézout coefficients in the corresponding signed integer type without integer overflow. The
Extended_Euclidean_algorithm
Data types supported by the C programming language
equals 0; otherwise, it gives 1 (true). This behavior exists to avoid integer overflows in implicit narrowing conversions. For example, in the following code:
C_data_types
Product of numbers from 1 to n
factorial of a non-negative integer n {\displaystyle n} , denoted by n ! {\displaystyle n!} , is the product of all positive integers less than or equal to
Factorial
Event occurring every 1024 weeks
therefore 0–1,023, in the legacy NAV (L1) message format. After 1,023, an integer overflow causes the internal value to roll over, changing to zero again. Software
GPS_week_number_rollover
Programming idiom
memory could no longer hold i. If i was a signed integer, rather than an unsigned integer, overflow would be undefined. Mathematics portal Cycle detection
Infinite_loop
Class of software bugs
stored as a signed 48-bit integer representing the number of 4-microsecond units since 1 January 1980. This value overflowed on 2 November 1997, rendering
Time formatting and storage bugs
Time_formatting_and_storage_bugs
Type of software bug
function that may result in a stack overflow in these languages. Consider the example below of two simple integer exponentiation functions. Both pow(base
Stack_overflow
Attribute of data
32-bit integers ranging in value from −2,147,483,648 to 2,147,483,647, with arithmetic operations that wrap on overflow. In Rust this 32-bit integer type
Data_type
Binary arithmetic algorithm
always works even in case of integer overflow, since, according to the C standard, addition and subtraction of unsigned integers follow the rules of modular
XOR_swap_algorithm
1980 video game
effect decreases in duration, eventually disappearing entirely. An integer overflow causes the 256th level to load improperly, rendering it impossible
Pac-Man
Computer format for representing real numbers
as long as no overflow occurs—that is, as long as the resulting integer can be stored in the receiving program variable. If overflow happens, it occurs
Fixed-point_arithmetic
Computer security exploit technique
on the destination of the branch. Blind return oriented programming Integer overflow JIT spraying Sigreturn-oriented programming (SROP) Threaded code –
Return-oriented_programming
Calculations where numbers' precision is only limited by computer memory
commonly employ arithmetic with integers having hundreds of digits. Another is in situations where artificial limits and overflows would be inappropriate. It
Arbitrary-precision arithmetic
Arbitrary-precision_arithmetic
American government data repository
exploit the vulnerability. In August 2023, the NVD initially marked an integer overflow bug in old versions of cURL as a 9.8 out of 10 critical vulnerability
National Vulnerability Database
National_Vulnerability_Database
Type of cyber-attack
(SACK) may be used by a remote peer to cause a denial of service by an integer overflow in the Linux kernel, potentially causing a kernel panic. Jonathan Looney
Denial-of-service_attack
Line of computers sold by Digital Equipment Corporation
overflow trap enable 29:28 MBZ (must be zero) 6 floating-point underflow trap enable 27 first part done (interrupted instruction) 5 integer overflow trap
VAX
Order of accesses to computer memory by a CPU
that the integer data type in most programming languages only follows the algebra for the mathematics integers in the absence of integer overflow and that
Memory_ordering
Computer programming condition
hardware level. Denormal number Floating-point arithmetic IEEE 754 Integer overflow Logarithmic number system Machine epsilon Normal number (computing)
Arithmetic_underflow
Messaging and VoIP service owned by Meta
security issue in WhatsApp's Android video call feature was reported. An integer overflow bug allowed a malicious user to take full control of the victim's application
Radiotherapy machine involved in six accidents
flag was being incremented instead of being set to non-zero, and so integer overflow still allowed the electron beam to be set for X-ray mode without the
Therac-25
Online gaming video series
game, the terrain generation does not function correctly due to an integer overflow, creating a warped landscape. Kurt began traveling in March 2011, and
Far_Lands_or_Bust
Form of inter-process communication in computer systems
floating-point or integer arithmetic hardware. This may include division by zero, floating-point underflow or overflow, integer overflow, an invalid operation
Signal_(IPC)
Japanese light novel series and its adaptations
was set intentionally to the 16-bit integer limit of 65,536 and Makoto is basically causing an integer overflow error. In the Goddess' World, he is also
Tsukimichi:_Moonlit_Fantasy
Microsoft's programming language based on BASIC and COM
this to work) until the form is closed or an integer overflow occurs: Option Explicit Dim Count As Integer Private Sub Form_Load() Count = 0 Timer1.Interval
Visual_Basic_(classic)
Anomaly in computer security and programming
In programming and information security, a buffer overflow or buffer overrun is an anomaly whereby a program writes data to a buffer beyond the buffer's
Buffer_overflow
Open-source, primary boot the device's operating system kernel
filesystem data structures, an attacker can cause an integer overflow, a stack overflow or a heap overflow. As a result, an attacker can perform an arbitrary
Das_U-Boot
bytes. If a player's score exceeded that limit, it would cause an integer overflow, causing the display to 'roll over' and start again at the minimum
Glossary_of_video_game_terms
Replacing a number with a simpler value
converted to an integer if necessary. This approach may avoid spurious overflows because floating-point types have a larger range than integer types. Some
Rounding
Defunct internet trolling group
They also have used a combination of inter-protocol, cross-site, and integer overflow bugs in both the Firefox and Safari web browsers to flood IRC channels
Gay Nigger Association of America
Gay_Nigger_Association_of_America
Units that are not part of a coherent system
units are convenient because binary integer overflow resembles angular arithmetic: the value of an 8-bit integer overflows from 255 to 0 when a full circle
List of non-coherent units of measurement
List_of_non-coherent_units_of_measurement
Apple's general-purpose, open-source, compiled programming language
and array bounds are always checked. Integer overflows, which result in undefined behavior for signed integers in C, are trapped as a run-time error
Swift_(programming_language)
Programming environment
Design Verifier uses formal methods to identify design errors like integer overflow, division by zero and dead logic, and generates test case scenarios
Simulink
2020 edition of the C++ programming language standard
new consteval keyword signed integers are now defined to be represented using two's complement (signed integer overflow remains undefined behavior) a
C++20
Computer security exploit
disguised as GIF files to inject JBIG2-encoded data to provoke an integer overflow in Apple's CoreGraphics system, circumventing Apple's "BlastDoor" sandbox
FORCEDENTRY
Natural number
binary counter that runs for 1024 weeks, 0 to 1023, at which point an integer overflow causes its internal value to roll over to zero again. Also its radio
1023_(number)
Divide and conquer sorting algorithm
Selecting a pivot element is also complicated by the existence of integer overflow. If the boundary indices of the subarray being sorted are sufficiently
Quicksort
Type of data structure algorithm
by F Shafait et al. is that of integer overflow occurring for the higher order integral images in case 32-bit integers are used. The data type for the
Summed-area_table
opportunity in the first place. An example of this in an Integer Overflow attack would be that the integer-based input field is not checking size of the value
Attack_patterns
Computer hacking contest
deprecated archival service (link) "Apple Safari WebKit PCRE Handling Integer Overflow Vulnerability". April 16, 2008. Retrieved March 31, 2025. Schofield
Pwn2Own
Software bug in Android
carry out the attack. The underlying attack vector exploits certain integer overflow vulnerabilities in the Android core component called libstagefright
Stagefright_(bug)
Language for controlling a computer
Storing an integer in a type that is too small to represent it leads to integer overflow. The most common way of representing negative numbers with signed types
Programming_language
Instruction set architecture
instructions (deprecated in previous releases). integer overflow trapping instructions with 16-bit immediate integer accumulator instructions (together HI/LO
MIPS_architecture
2012 music video
the view counting system to prevent an integer overflow. In fact, YouTube had already updated to a 64-bit integer months before. On January 19, 2016, the
Gangnam_Style_(music_video)
Container format
during early development. Using an unsigned 32-bit integer and the 1904 epoch, integer overflow will overflow will occur sometime in 2040. Others may be observed
PDB_(Palm_OS)
Digit transferred from one column to another
reset the carry flag on borrow (and vice versa). A carry can lead to integer overflow. Holte, John M. (February 1997), "Carries, Combinatorics, and an Amazing
Carry_(arithmetic)
Form of waveform distortion
of, for instance, 32000 should become 64000, but instead cause an integer overflow and saturate to the maximum, 32767. Clipping is preferable to the alternative
Clipping_(audio)
Technique for program analysis
would need to equal 6 or (if int is a 32-bit two's complement integer and integer overflow is taken into account) -2147483642. Symbolically executing all
Symbolic_execution
Figurate number
triangular numbers where the standard formula t = n*(n+1)/2 would suffer integer overflow before the final division by 2. For example, T20 = 210 < 256, so will
Triangular_number
Natural number
4,294,967,295 is the highest unsigned (that is, not negative) 32-bit integer, which makes it the highest possible number a 32-bit system can store in
4,294,967,295
of the Ariane 5 rocket self-destructed due to an overflow occurring during a floating-point to integer conversion in the on-board guidance software. The
List_of_software_bugs
Image file format
format or color XPM and GIF formats "libXpm library contains multiple integer overflow vulnerabilities". US-CERT. 2005-10-06. VU#537878. Retrieved 2014-01-01
X_PixMap
Keyboard and mouse sharing software
June 2026. "synergy/LICENSE". GitHub. Retrieved 2017-06-10. "Synergy: Integer Overflow, Key Reuse, IV Reuse". DefuseSec. Retrieved 2016-05-04. "Cracking Synergy's
Synergy_(software)
Hosted hypervisor for Windows and Linux
Unsupported: 14.1.5 Pro 23 November 2018 VMware Workstation Pro contains an integer overflow vulnerability in the virtual network devices which may allow a guest
VMware_Workstation
1989 video game
details on unexpected behaviors that occur at very high levels. An integer overflow bug is first encountered at level 138, where color palettes would be
Tetris_(NES_video_game)
2016 Android mobile operating system
to harden the media stack against future vulnerabilities. Runtime integer overflow detection was implemented, preventing the majority of Stagefright-like
Android_Nougat
Topics referred to by the same term
(disambiguation) "Roll Over Beethoven", a 1956 song by Chuck Berry Integer overflow, when an arithmetic operation attempts to create a numeric value that
Rollover
Touchscreen smart speaker produced by Amazon
version of Chromium. The security team exploited the code using "an integer overflow JavaScript bug to hijack the device while it was connected to a malicious
Amazon_Echo_Show
Free software library for handling the JPEG image format
2021-01-25. Friesenhahn, Bob (June 6, 2020). "Re: [Libjpeg-devel-6x] 4 Integer Overflow Errors in libjpeg-9c". libjpeg-devel-6x (Mailing list). Retrieved 2021-01-25
Libjpeg
Computer programmer
array, and had coded the loop in such a way as to take advantage of an Integer overflow. Adding 1 to the address field of an instruction that referred to address
The_Story_of_Mel
Polish hacker (born 1981)
Retrieved August 22, 2005. "VU#945216 SSH CRC32 (...) Contains Remote Integer Overflow". CERT Advisories. Retrieved August 22, 2005. This vulnerability made
Michał_Zalewski
Mail transfer agent for Unix
software version. In 2005, security researcher Georgi Guninski found an integer overflow in qmail. On 64-bit platforms, in default configurations with sufficient
Qmail
Topics referred to by the same term
with serious or complex needs Wraparound, a possible outcome of an integer overflow in computing Wraparound bridge, guitar bridge Wraparound corkscrew
Wraparound
Hacker group
Encyclopedia Dramatica. In March 2010, Goatse Security discovered an integer overflow vulnerability within Apple's web browser, Safari, and posted an exploit
Goatse_Security
IEEE standard for floating-point arithmetic
the unhandled trap consecutive to a floating-point to 16-bit integer conversion overflow that caused the loss of an Ariane 5 rocket would not have happened
IEEE_754
Standard library function in the C programming language
returning x - y, which can cause undefined behaviour // because of signed integer overflow. if (x < y) { // Return -1 for ascending, +1 for descending order.
Qsort
Apple Watch operating system
September 13, 2021 This release fixes FORCEDENTRY (CVE-2021-30860), an integer overflow bug that allows a malicious PDF to perform remote code execution. Security
WatchOS
Topics referred to by the same term
spelled as "yero" and "yeros" Year End Roll Over (YERO), a type of integer overflow or counter reset in data systems and calendrical systems Dimitris Yeros
Yero_(disambiguation)
Date and time representation system widely used in computing
referred to as the Unix epoch. Unix time is typically encoded as a signed integer. The Unix time 0 is exactly midnight UTC on 1 January 1970, with Unix time
Unix_time
Declaration of a function's name and type signature but not body
Compiler error: too few arguments // Although adding 1 to INT_MAX is an integer overflow error, // it cannot be detected at compile time putchar(myFunction(INT_MAX
Function_prototype
Super Mario 64 YouTuber
run) and his use of parallel universes (a collision glitch caused by integer overflow).[better source needed] On October 1, 2023, Buchanan uploaded an updated
Pannenkoek2012
Greatest integer less than or equal to square root
number theory, the integer square root (isqrt) of a non-negative integer n is the non-negative integer m which is the greatest integer less than or equal
Integer_square_root
Combinational digital circuit
combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which
Arithmetic_logic_unit
and determining the precision required for all calculations to avoid integer overflow conditions. For instance, two-dimensional convex hulls can be computed
Robust_geometric_computation
Type of arithmetic where output is limited to a fixed range of values
provides overflow flags and conditional moves, very simple branch-free code is possible. Although saturation arithmetic is less popular for integer arithmetic
Saturation_arithmetic
Standard for cryptographic certificates
subidentifiers of object identifiers, wrong implementations or by using integer overflows of the client's browsers, an attacker can include an unknown attribute
X.509
1982 video game
17–22. The kill screen occurs the same way as in Donkey Kong, where an integer overflow occurs after too big a result is given after a multiplication problem
Donkey_Kong_Jr.
Russian computer security researcher (born 1984)
"1443891 - (CVE-2018-5178) Integer overflow in nsScriptableUnicodeConverter::ConvertFromByteArray can cause a heap buffer overflow". bugzilla.mozilla.org
Alisa_Esage
Operating system
original on 6 January 2012. "OpenBSD's IPv6 mbufs remote kernel buffer overflow". Core Security Technologies. 13 March 2007. Archived from the original
OpenBSD
Framework for cryptographic protocols
rules for nonces. Nonces are not allowed to wrap back to zero due to integer overflow, and the maximum nonce value is reserved. This means parties are not
Noise_Protocol_Framework
Automatic repair of software bugs
statement to check whether the value of a variable is null. integer overflow repair buffer overflow repair memory leak repair, with automated insertion of
Automatic_bug_fixing
1982 video game
lives during the game. At round 256, the game experiences an 8-bit integer overflow bug and attempts to instead load round 0. Doing so causes level generation
Dig_Dug
Property of a numeric data type in computing
two's complement signed 16-bit integer can hold the values −32768 to 32767 inclusively, while an unsigned 16 bit integer can hold the values 0 to 65535
Signedness
they extend past a guard band. Clipping is still needed to prevent integer overflow in the rasterizer. The guard band is typically designed to be several
Guard-band_clipping
64-bit RISC instruction set architecture
condition codes for integer instructions to remove a potential bottleneck at the condition status register. Instructions resulting in an overflow, such as adding
DEC_Alpha
Counting circuit component
used to reduce a high frequency electrical signal to a lower frequency by integer division. The prescaler takes the basic timer clock frequency (which may
Prescaler
Programming language
SKIP evaluates for any integer x. ALGOL 68 leaves intentionally undefined what happens in case of integer overflow, the integer bit representation, and
ALGOL_68
School in University of Utah
Regehr - developed the C compiler fuzzer Csmith, the Clang C compiler integer overflow sanitizer, and widely-read blog Embedded in Academia Ivan Sutherland
University of Utah School of Computing
University_of_Utah_School_of_Computing
INTEGER OVERFLOW
INTEGER OVERFLOW
Boy/Male
Arabic, Muslim
To Wait
Male
Hebrew
(צוּף) Hebrew name TSUWPH means "flow, overflow," hence "honey as dropping." In the bible, this is the name of an ancestor of Elkanah.
Female
Scandinavian
Scandinavian form of Old Norse Ingigerðr, INGEGERD means "Ing's enclosure."
Boy/Male
Arabic, Indian, Muslim, Sindhi
Useful; From the Verb Fada to Overflow
Boy/Male
Muslim
To wait
Boy/Male
German, Norse, Swedish
Guarded by Ing; Ing's Beauty
Girl/Female
American, Australian, Danish, Finnish, German, Scandinavian, Swedish, Teutonic
Guarded by Ing; Ing is Beautiful; Daughter of Hero; Enclosure
Girl/Female
Scandinavian Teutonic Danish Swedish
Ing's abundance. Feminine of Ing who was Norse mythological god of the earth's fertility.
Male
English
Anglicized form of Hebrew Tsuwph, ZUPH means "flow, overflow," hence "honey as dropping." In the bible, this is the name of an ancestor of Elkanah.
Boy/Male
African, Arabic, Indian, Muslim, Sindhi, Swahili
Beneficial; Useful; Overflow
Female
Hebrew
(צוּפִית) Feminine form of Hebrew Tzuf, TZUFIT means "flow, overflow," hence "honey as dropping."
Boy/Male
Arabic
Overflowing; Generous
Female
Swedish
Swedish contracted form of Scandinavian Ingegerd, INGER means "Ing's enclosure."
Boy/Male
Muslim
Overflowing, Generous
Girl/Female
Danish, Finnish, German, Swedish
Guarded by Ing; Ing's Beauty; Ing's Place
Female
Welsh
Welsh legend name of the daughter of Brychan, possibly derived from the name of a river, from the word alar, ELERI means "more than full; overflowing."
Male
Hebrew
(צוּף) Variant spelling of Hebrew Tsuwph, TZUF means "flow, overflow," hence "honey as dropping." In the bible, this is the name of an ancestor of Elkanah.
Boy/Male
Norse
Son's army.
Girl/Female
African, Arabic, French, Indian, Kannada, Muslim, Nigerian, Swahili
Wish; Desire; Hope; Overflowing Spring; Lord is with You
Female
Native American
 Native American Hopi name MUNA means "overflowing spring." Compare with another form of Muna.
INTEGER OVERFLOW
INTEGER OVERFLOW
Girl/Female
Australian, German, Swedish
God's Promise; God is My Oath
Boy/Male
Tamil
New Moon
Boy/Male
Hindu
A shell, Conch
Girl/Female
Australian, Finnish
Gift of God
Female
Native American
Native American Algonquin name WIKIMAK means "wife."
Girl/Female
Indian, Tamil
Female God
Girl/Female
Indian, Punjabi, Sikh
God of War
Boy/Male
Greek
Hundred-armed Titan in Greek mythology.
Male
Dutch
, warrior power, or, army wielder.
Male
Thai/Siamese
Thai name THINNAKORN means "sun."
INTEGER OVERFLOW
INTEGER OVERFLOW
INTEGER OVERFLOW
INTEGER OVERFLOW
INTEGER OVERFLOW
n.
One who makes an entrance or beginning.
v. t.
To place in a tomb; to bury; to inter; to entomb.
p. pr. & vb. n.
of Inter
n.
One who intends.
v. t.
To inter.
n.
One who gathers the vintage.
v. t.
To bury; to inter; to entomb; as, obscurely sepulchered.
v. t.
To deposit and cover in the earth; to bury; to inhume; as, to inter a dead body.
v. t.
To deposit, as a dead body, in the earth; to bury; to inter.
v. t.
To deposit or inter in a chapel; to enshrine.
v. t.
To inhume; to bury; to inter.
n.
That number placed below the line in vulgar fractions which shows into how many parts the integer or unit is divided.
v. t.
To inter with funeral rites; to bury.
a.
Essential to completeness; constituent, as a part; pertaining to, or serving to form, an integer; integrant.
n.
A complete entity; a whole number, in contradistinction to a fraction or a mixed number.
n.
One who inters.
n.
One who makes an index.
v. t.
To inter again.
imp. & p. p.
of Inter