CWE-190
AllowedInteger Overflow or Wraparound
Abstraction: Base · Status: Stable
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
3888 vulnerabilities reference this CWE, most recent first.
GHSA-Q323-HHW8-233J
Vulnerability from github – Published: 2022-05-13 01:15 – Updated: 2024-10-17 21:31Integer overflow in the TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code by sending a sequence of crafted UDP packets to a closed port, aka "Reference Counter Overflow Vulnerability."
{
"affected": [],
"aliases": [
"CVE-2011-2013"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-11-08T21:55:00Z",
"severity": "HIGH"
},
"details": "Integer overflow in the TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code by sending a sequence of crafted UDP packets to a closed port, aka \"Reference Counter Overflow Vulnerability.\"",
"id": "GHSA-q323-hhw8-233j",
"modified": "2024-10-17T21:31:28Z",
"published": "2022-05-13T01:15:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2013"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-083"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1026290"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q338-M4F4-2MM6
Vulnerability from github – Published: 2022-05-04 00:00 – Updated: 2022-05-13 00:01TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-around in function 'tos_mmheap_alloc incorrect calculation of effective memory allocation size. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
{
"affected": [],
"aliases": [
"CVE-2021-27439"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-03T21:15:00Z",
"severity": "CRITICAL"
},
"details": "TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-around in function \u0027tos_mmheap_alloc incorrect calculation of effective memory allocation size. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.",
"id": "GHSA-q338-m4f4-2mm6",
"modified": "2022-05-13T00:01:11Z",
"published": "2022-05-04T00:00:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27439"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q39J-XWR5-2GGJ
Vulnerability from github – Published: 2022-05-17 00:55 – Updated: 2025-11-21 18:30Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2013-2727.
{
"affected": [],
"aliases": [
"CVE-2013-2729"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-05-16T11:45:00Z",
"severity": "HIGH"
},
"details": "Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2013-2727.",
"id": "GHSA-q39j-xwr5-2ggj",
"modified": "2025-11-21T18:30:26Z",
"published": "2022-05-17T00:55:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-2729"
},
{
"type": "WEB",
"url": "https://github.com/cisagov/vulnrichment/issues/199"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16717"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2729"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00004.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2013-0826.html"
},
{
"type": "WEB",
"url": "http://security.gentoo.org/glsa/glsa-201308-03.xml"
},
{
"type": "WEB",
"url": "http://www.adobe.com/support/security/bulletins/apsb13-15.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q3M7-HQXQ-WG8H
Vulnerability from github – Published: 2022-05-14 01:03 – Updated: 2022-05-14 01:03Integer overflow in the Graphics Device Interface (GDI) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted image in a Windows Write (.wri) document, which is not properly handled in WordPad, aka "Graphics Device Interface Integer Overflow Vulnerability."
{
"affected": [],
"aliases": [
"CVE-2013-3940"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-11-13T00:55:00Z",
"severity": "HIGH"
},
"details": "Integer overflow in the Graphics Device Interface (GDI) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted image in a Windows Write (.wri) document, which is not properly handled in WordPad, aka \"Graphics Device Interface Integer Overflow Vulnerability.\"",
"id": "GHSA-q3m7-hqxq-wg8h",
"modified": "2022-05-14T01:03:37Z",
"published": "2022-05-14T01:03:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-3940"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-089"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18722"
},
{
"type": "WEB",
"url": "http://www.us-cert.gov/ncas/alerts/TA13-317A"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q449-R33X-V693
Vulnerability from github – Published: 2022-05-24 17:34 – Updated: 2022-05-24 17:34Garmin Forerunner 235 before 8.20 is affected by: Integer Overflow. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ application to the ConnectIQ store. The ConnectIQ program interpreter fails to check for overflow when allocating the array for the NEWA instruction. This a constrained read/write primitive across the entire MAX32630 address space. A successful exploit would allow a ConnectIQ app store application to escape and perform activities outside the restricted application execution environment.
{
"affected": [],
"aliases": [
"CVE-2020-27484"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-16T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Garmin Forerunner 235 before 8.20 is affected by: Integer Overflow. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ application to the ConnectIQ store. The ConnectIQ program interpreter fails to check for overflow when allocating the array for the NEWA instruction. This a constrained read/write primitive across the entire MAX32630 address space. A successful exploit would allow a ConnectIQ app store application to escape and perform activities outside the restricted application execution environment.",
"id": "GHSA-q449-r33x-v693",
"modified": "2022-05-24T17:34:18Z",
"published": "2022-05-24T17:34:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27484"
},
{
"type": "WEB",
"url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0004.md"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q48M-QWVW-83PX
Vulnerability from github – Published: 2022-09-07 00:01 – Updated: 2022-09-10 00:00In teei, there is a possible memory corruption due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06664701; Issue ID: ALPS06664701.
{
"affected": [],
"aliases": [
"CVE-2022-26454"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-06T18:15:00Z",
"severity": "MODERATE"
},
"details": "In teei, there is a possible memory corruption due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06664701; Issue ID: ALPS06664701.",
"id": "GHSA-q48m-qwvw-83px",
"modified": "2022-09-10T00:00:33Z",
"published": "2022-09-07T00:01:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26454"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/September-2022"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4C4-WM35-X9G8
Vulnerability from github – Published: 2022-05-17 02:53 – Updated: 2022-05-17 02:53Integer overflow in jas_image.c in JasPer before 1.900.25 allows remote attackers to cause a denial of service (application crash) via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2016-9557"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-23T18:59:00Z",
"severity": "MODERATE"
},
"details": "Integer overflow in jas_image.c in JasPer before 1.900.25 allows remote attackers to cause a denial of service (application crash) via a crafted file.",
"id": "GHSA-q4c4-wm35-x9g8",
"modified": "2022-05-17T02:53:35Z",
"published": "2022-05-17T02:53:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9557"
},
{
"type": "WEB",
"url": "https://github.com/mdadams/jasper/commit/d42b2388f7f8e0332c846675133acea151fc557a"
},
{
"type": "WEB",
"url": "https://blogs.gentoo.org/ago/2016/11/19/jasper-signed-integer-overflow-in-jas_image-c"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1398251"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/11/23/2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94490"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4CH-F363-6X69
Vulnerability from github – Published: 2022-05-17 00:27 – Updated: 2022-05-17 00:27Integer overflow in the archive_read_format_tar_skip function in archive_read_support_format_tar.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted tar file.
{
"affected": [],
"aliases": [
"CVE-2015-8933"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-09-20T14:15:00Z",
"severity": "MODERATE"
},
"details": "Integer overflow in the archive_read_format_tar_skip function in archive_read_support_format_tar.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted tar file.",
"id": "GHSA-q4ch-f363-6x69",
"modified": "2022-05-17T00:27:49Z",
"published": "2022-05-17T00:27:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8933"
},
{
"type": "WEB",
"url": "https://github.com/libarchive/libarchive/issues/548"
},
{
"type": "WEB",
"url": "https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201701-03"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3657"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/06/17/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/06/17/5"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/91421"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-3033-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4R7-GGCW-952W
Vulnerability from github – Published: 2022-04-16 00:00 – Updated: 2022-04-23 00:03stb_image.h v2.27 was discovered to contain an integer overflow via the function stbi__jpeg_decode_block_prog_dc. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.
{
"affected": [],
"aliases": [
"CVE-2022-28041"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-15T14:15:00Z",
"severity": "MODERATE"
},
"details": "stb_image.h v2.27 was discovered to contain an integer overflow via the function stbi__jpeg_decode_block_prog_dc. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.",
"id": "GHSA-q4r7-ggcw-952w",
"modified": "2022-04-23T00:03:21Z",
"published": "2022-04-16T00:00:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28041"
},
{
"type": "WEB",
"url": "https://github.com/nothings/stb/issues/1292"
},
{
"type": "WEB",
"url": "https://github.com/nothings/stb/pull/1297"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00045.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2G6JJJQ5JABTPF5H2L5FQGLILYLIGPW6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52ZIQAFEG7A6TO526OJ7OA4GSEZQ2WEG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FXLM5XL77SNH4IPTSXOQD7XL4E2EMIN"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I4HXIWU5HBOADXZVMREHT4YTO5WVYXEQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J72YJQ3R5MG23GECPUCLAWPPZ6TZPG7U"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIRW5D4CJIDS6FHOGHSS42SSDDKQMXPN"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMBCMJGAZRQS55SNECUWZSC5URVLEZ5R"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OHTD76NDEN77KCPI3XGGK2VVSA25WWEG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEQGDVH43YW7AG7TRU2CTU5TMIYP27WP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXX76TJMZBPN3NU542MGN6B7C7QHRFGB"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4R9-VXP8-26X5
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-16 15:33In the Linux kernel, the following vulnerability has been resolved:
slub: fix data loss and overflow in krealloc()
Commit 2cd8231796b5 ("mm/slub: allow to set node and align in k[v]realloc") introduced the ability to force a reallocation if the original object does not satisfy new alignment or NUMA node, even when the object is being shrunk.
This introduced two bugs in the reallocation fallback path:
-
Data loss during NUMA migration: The jump to 'alloc_new' happens before 'ks' and 'orig_size' are initialized. As a result, the memcpy() in the 'alloc_new' block would copy 0 bytes into the new allocation.
-
Buffer overflow during shrinking: When shrinking an object while forcing a new alignment, 'new_size' is smaller than the old size. However, the memcpy() used the old size ('orig_size ?: ks'), leading to an out-of-bounds write.
The same overflow bug exists in the kvrealloc() fallback path, where the old bucket size ksize(p) is copied into the new buffer without being bounded by the new size.
A simple reproducer:
// e.g. add to lkdtm as KREALLOC_SHRINK_OVERFLOW
while (1) {
void *p = kmalloc(128, GFP_KERNEL);
p = krealloc_node_align(p, 64, 256, GFP_KERNEL, NUMA_NO_NODE);
kfree(p);
}
demonstrates the issue:
================================================================== BUG: KFENCE: out-of-bounds write in memcpy_orig+0x68/0x130
Out-of-bounds write at 0xffff8883ad757038 (120B right of kfence-#47): memcpy_orig+0x68/0x130 krealloc_node_align_noprof+0x1c8/0x340 lkdtm_KREALLOC_SHRINK_OVERFLOW+0x8c/0xc0 [lkdtm] lkdtm_do_action+0x3a/0x60 [lkdtm] ...
kfence-#47: 0xffff8883ad756fc0-0xffff8883ad756fff, size=64, cache=kmalloc-64
allocated by task 316 on cpu 7 at 97.680481s (0.021813s ago): krealloc_node_align_noprof+0x19c/0x340 lkdtm_KREALLOC_SHRINK_OVERFLOW+0x8c/0xc0 [lkdtm] lkdtm_do_action+0x3a/0x60 [lkdtm] ... ==================================================================
Fix it by moving the old size calculation to the top of __do_krealloc() and bounding all copy lengths by the new allocation size.
{
"affected": [],
"aliases": [
"CVE-2026-45990"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:16Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nslub: fix data loss and overflow in krealloc()\n\nCommit 2cd8231796b5 (\"mm/slub: allow to set node and align in\nk[v]realloc\") introduced the ability to force a reallocation if the\noriginal object does not satisfy new alignment or NUMA node, even when\nthe object is being shrunk.\n\nThis introduced two bugs in the reallocation fallback path:\n\n1. Data loss during NUMA migration: The jump to \u0027alloc_new\u0027 happens\n before \u0027ks\u0027 and \u0027orig_size\u0027 are initialized. As a result, the\n memcpy() in the \u0027alloc_new\u0027 block would copy 0 bytes into the new\n allocation.\n\n2. Buffer overflow during shrinking: When shrinking an object while\n forcing a new alignment, \u0027new_size\u0027 is smaller than the old size.\n However, the memcpy() used the old size (\u0027orig_size ?: ks\u0027), leading\n to an out-of-bounds write.\n\nThe same overflow bug exists in the kvrealloc() fallback path, where the\nold bucket size ksize(p) is copied into the new buffer without being\nbounded by the new size.\n\nA simple reproducer:\n\n\t// e.g. add to lkdtm as KREALLOC_SHRINK_OVERFLOW\n\twhile (1) {\n\t\tvoid *p = kmalloc(128, GFP_KERNEL);\n\t\tp = krealloc_node_align(p, 64, 256, GFP_KERNEL, NUMA_NO_NODE);\n\t\tkfree(p);\n\t}\n\ndemonstrates the issue:\n\n ==================================================================\n BUG: KFENCE: out-of-bounds write in memcpy_orig+0x68/0x130\n\n Out-of-bounds write at 0xffff8883ad757038 (120B right of kfence-#47):\n memcpy_orig+0x68/0x130\n krealloc_node_align_noprof+0x1c8/0x340\n lkdtm_KREALLOC_SHRINK_OVERFLOW+0x8c/0xc0 [lkdtm]\n lkdtm_do_action+0x3a/0x60 [lkdtm]\n ...\n\n kfence-#47: 0xffff8883ad756fc0-0xffff8883ad756fff, size=64, cache=kmalloc-64\n\n allocated by task 316 on cpu 7 at 97.680481s (0.021813s ago):\n krealloc_node_align_noprof+0x19c/0x340\n lkdtm_KREALLOC_SHRINK_OVERFLOW+0x8c/0xc0 [lkdtm]\n lkdtm_do_action+0x3a/0x60 [lkdtm]\n ...\n ==================================================================\n\nFix it by moving the old size calculation to the top of __do_krealloc()\nand bounding all copy lengths by the new allocation size.",
"id": "GHSA-q4r9-vxp8-26x5",
"modified": "2026-06-16T15:33:40Z",
"published": "2026-05-27T15:33:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45990"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/082a6d03a2d685a83a332666b500ad3966349588"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/38387ccc0fbe38d14fb4c2ad7ee1d7404e5e59fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/550fa6b5aabb096554536ac1e3ec96b76cbb35fd"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Mitigation MIT-3
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Strategy: Input Validation
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-26
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.