CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9854 vulnerabilities reference this CWE, most recent first.
GHSA-8X5V-3JGC-W6JF
Vulnerability from github – Published: 2022-03-19 00:00 – Updated: 2022-03-25 00:00A flaw use after free in the Linux kernel FUSE filesystem was found in the way user triggers write(). A local user could use this flaw to get some unauthorized access to some data from the FUSE filesystem and as result potentially privilege escalation too.
{
"affected": [],
"aliases": [
"CVE-2022-1011"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-18T18:15:00Z",
"severity": "HIGH"
},
"details": "A flaw use after free in the Linux kernel FUSE filesystem was found in the way user triggers write(). A local user could use this flaw to get some unauthorized access to some data from the FUSE filesystem and as result potentially privilege escalation too.",
"id": "GHSA-8x5v-3jgc-w6jf",
"modified": "2022-03-25T00:00:46Z",
"published": "2022-03-19T00:00:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1011"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2064855"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-next"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BG4J46EMFPDD5QHYXDUI3PJCZQ7HQAZR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C5AUUDGSDLGYU7SZSK4PFAN22NISQZBT"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220425-0002"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5173"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/166772/Linux-FUSE-Use-After-Free.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8X8H-8P2W-8G4F
Vulnerability from github – Published: 2024-04-03 18:30 – Updated: 2024-11-04 21:30In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel
The following race is possible between bpf_timer_cancel_and_free and bpf_timer_cancel. It will lead a UAF on the timer->timer.
bpf_timer_cancel(); spin_lock(); t = timer->time; spin_unlock();
bpf_timer_cancel_and_free();
spin_lock();
t = timer->timer;
timer->timer = NULL;
spin_unlock();
hrtimer_cancel(&t->timer);
kfree(t);
/* UAF on t */
hrtimer_cancel(&t->timer);
In bpf_timer_cancel_and_free, this patch frees the timer->timer after a rcu grace period. This requires a rcu_head addition to the "struct bpf_hrtimer". Another kfree(t) happens in bpf_timer_init, this does not need a kfree_rcu because it is still under the spin_lock and timer->timer has not been visible by others yet.
In bpf_timer_cancel, rcu_read_lock() is added because this helper can be used in a non rcu critical section context (e.g. from a sleepable bpf prog). Other timer->timer usages in helpers.c have been audited, bpf_timer_cancel() is the only place where timer->timer is used outside of the spin_lock.
Another solution considered is to mark a t->flag in bpf_timer_cancel and clear it after hrtimer_cancel() is done. In bpf_timer_cancel_and_free, it busy waits for the flag to be cleared before kfree(t). This patch goes with a straight forward solution and frees timer->timer after a rcu grace period.
{
"affected": [],
"aliases": [
"CVE-2024-26737"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-03T17:15:51Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel\n\nThe following race is possible between bpf_timer_cancel_and_free\nand bpf_timer_cancel. It will lead a UAF on the timer-\u003etimer.\n\nbpf_timer_cancel();\n\tspin_lock();\n\tt = timer-\u003etime;\n\tspin_unlock();\n\n\t\t\t\t\tbpf_timer_cancel_and_free();\n\t\t\t\t\t\tspin_lock();\n\t\t\t\t\t\tt = timer-\u003etimer;\n\t\t\t\t\t\ttimer-\u003etimer = NULL;\n\t\t\t\t\t\tspin_unlock();\n\t\t\t\t\t\thrtimer_cancel(\u0026t-\u003etimer);\n\t\t\t\t\t\tkfree(t);\n\n\t/* UAF on t */\n\thrtimer_cancel(\u0026t-\u003etimer);\n\nIn bpf_timer_cancel_and_free, this patch frees the timer-\u003etimer\nafter a rcu grace period. This requires a rcu_head addition\nto the \"struct bpf_hrtimer\". Another kfree(t) happens in bpf_timer_init,\nthis does not need a kfree_rcu because it is still under the\nspin_lock and timer-\u003etimer has not been visible by others yet.\n\nIn bpf_timer_cancel, rcu_read_lock() is added because this helper\ncan be used in a non rcu critical section context (e.g. from\na sleepable bpf prog). Other timer-\u003etimer usages in helpers.c\nhave been audited, bpf_timer_cancel() is the only place where\ntimer-\u003etimer is used outside of the spin_lock.\n\nAnother solution considered is to mark a t-\u003eflag in bpf_timer_cancel\nand clear it after hrtimer_cancel() is done. In bpf_timer_cancel_and_free,\nit busy waits for the flag to be cleared before kfree(t). This patch\ngoes with a straight forward solution and frees timer-\u003etimer after\na rcu grace period.",
"id": "GHSA-8x8h-8p2w-8g4f",
"modified": "2024-11-04T21:30:26Z",
"published": "2024-04-03T18:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26737"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0281b919e175bb9c3128bd3872ac2903e9436e3f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5268bb02107b9eedfdcd51db75b407d10043368c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d80a9e745fa5b47da3bca001f186c02485c7c33"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8327ed12e8ebc5436bfaa1786c49988894f9c8a6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/addf5e297e6cbf5341f9c07720693ca9ba0057b5"
}
],
"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"
}
]
}
GHSA-8X9P-CW2C-6253
Vulnerability from github – Published: 2023-06-20 12:30 – Updated: 2025-02-13 18:31There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.
{
"affected": [],
"aliases": [
"CVE-2023-1999"
],
"database_specific": {
"cwe_ids": [
"CWE-415",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-20T12:15:09Z",
"severity": "HIGH"
},
"details": "There exists a use after free/double free in libwebp. An attacker can use the\u00a0ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.\u00a0",
"id": "GHSA-8x9p-cw2c-6253",
"modified": "2025-02-13T18:31:39Z",
"published": "2023-06-20T12:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1999"
},
{
"type": "WEB",
"url": "https://chromium.googlesource.com/webm/libwebp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202309-05"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8X9R-PG87-R424
Vulnerability from github – Published: 2026-06-09 18:31 – Updated: 2026-06-09 18:31InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2026-34696"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T18:16:40Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-8x9r-pg87-r424",
"modified": "2026-06-09T18:31:03Z",
"published": "2026-06-09T18:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34696"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb26-58.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8XGR-FVRM-F9G3
Vulnerability from github – Published: 2024-05-20 12:30 – Updated: 2024-10-29 21:30In the Linux kernel, the following vulnerability has been resolved:
phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered
The power_supply frame-work is not really designed for there to be long living in kernel references to power_supply devices.
Specifically unregistering a power_supply while some other code has a reference to it triggers a WARN in power_supply_unregister():
WARN_ON(atomic_dec_return(&psy->use_cnt));
Folllowed by the power_supply still getting removed and the backing data freed anyway, leaving the tusb1210 charger-detect code with a dangling reference, resulting in a crash the next time tusb1210_get_online() is called.
Fix this by only holding the reference in tusb1210_get_online() freeing it at the end of the function. Note this still leaves a theoretical race window, but it avoids the issue when manually rmmod-ing the charger chip driver during development.
{
"affected": [],
"aliases": [
"CVE-2024-35986"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-20T10:15:12Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered\n\nThe power_supply frame-work is not really designed for there to be\nlong living in kernel references to power_supply devices.\n\nSpecifically unregistering a power_supply while some other code has\na reference to it triggers a WARN in power_supply_unregister():\n\n\tWARN_ON(atomic_dec_return(\u0026psy-\u003euse_cnt));\n\nFolllowed by the power_supply still getting removed and the\nbacking data freed anyway, leaving the tusb1210 charger-detect code\nwith a dangling reference, resulting in a crash the next time\ntusb1210_get_online() is called.\n\nFix this by only holding the reference in tusb1210_get_online()\nfreeing it at the end of the function. Note this still leaves\na theoretical race window, but it avoids the issue when manually\nrmmod-ing the charger chip driver during development.",
"id": "GHSA-8xgr-fvrm-f9g3",
"modified": "2024-10-29T21:30:46Z",
"published": "2024-05-20T12:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35986"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/25b3498485ac281e5851700e33b97f12c9533fd8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73224a5d2180066c7fe05b4656647601ba08d588"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9827caa5105fb16d1fae2e75c8d0e4662014b3ca"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052"
}
],
"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"
}
]
}
GHSA-8XGV-Q88P-GHQ4
Vulnerability from github – Published: 2024-05-31 00:30 – Updated: 2024-07-03 18:43Use after free in Media Session in Google Chrome prior to 125.0.6422.141 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2024-5496"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-30T23:15:48Z",
"severity": "HIGH"
},
"details": "Use after free in Media Session in Google Chrome prior to 125.0.6422.141 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-8xgv-q88p-ghq4",
"modified": "2024-07-03T18:43:53Z",
"published": "2024-05-31T00:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5496"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_30.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/338929744"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5SQOWDIVBXQYQPPBSCH7EFISYAOCTHD"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW4TZXVPN3NLZ4UDGZP6OASUM4OVLXX2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8XH8-884J-FGGJ
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2022-05-24 17:08In binder_thread_release of binder.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-145286050References: Upstream kernel
{
"affected": [],
"aliases": [
"CVE-2020-0030"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-13T15:15:00Z",
"severity": "MODERATE"
},
"details": "In binder_thread_release of binder.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-145286050References: Upstream kernel",
"id": "GHSA-8xh8-884j-fggj",
"modified": "2022-05-24T17:08:54Z",
"published": "2022-05-24T17:08:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-0030"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2020-02-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8XHG-FJ3F-85VR
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-59515"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:37Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-8xhg-fj3f-85vr",
"modified": "2025-11-11T18:30:21Z",
"published": "2025-11-11T18:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59515"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59515"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8XJ3-HM3H-9352
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30InDesign Desktop versions 20.5, 19.5.5 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2025-61815"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T17:15:52Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions 20.5, 19.5.5 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-8xj3-hm3h-9352",
"modified": "2025-11-11T18:30:20Z",
"published": "2025-11-11T18:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61815"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb25-106.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8XJ7-CQGP-89JF
Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2022-05-14 00:53Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have a Use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.
{
"affected": [],
"aliases": [
"CVE-2018-12792"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-20T19:29:00Z",
"severity": "CRITICAL"
},
"details": "Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have a Use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.",
"id": "GHSA-8xj7-cqgp-89jf",
"modified": "2022-05-14T00:53:03Z",
"published": "2022-05-14T00:53:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12792"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-21.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104701"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041250"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.