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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11895 vulnerabilities reference this CWE, most recent first.
GHSA-86GP-V777-H747
Vulnerability from github – Published: 2026-07-19 12:30 – Updated: 2026-07-24 15:32In the Linux kernel, the following vulnerability has been resolved:
rpmsg: char: Fix use-after-free on probe error path
rpmsg_chrdev_probe() stores the newly allocated eptdev in the default endpoint's priv pointer before calling rpmsg_chrdev_eptdev_add(). If rpmsg_chrdev_eptdev_add() then fails, its error path frees eptdev while the default endpoint may still dispatch callbacks with the stale priv pointer.
Avoid publishing eptdev through the default endpoint until rpmsg_chrdev_eptdev_add() succeeds. Messages received before the priv pointer is published should be ignored by rpmsg_ept_cb(). Flow-control updates can hit rpmsg_ept_flow_cb() in the same window, so make both callbacks return success when priv is NULL.
{
"affected": [],
"aliases": [
"CVE-2026-63797"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-19T12:16:52Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrpmsg: char: Fix use-after-free on probe error path\n\nrpmsg_chrdev_probe() stores the newly allocated eptdev in the default\nendpoint\u0027s priv pointer before calling rpmsg_chrdev_eptdev_add(). If\nrpmsg_chrdev_eptdev_add() then fails, its error path frees eptdev while\nthe default endpoint may still dispatch callbacks with the stale priv\npointer.\n\nAvoid publishing eptdev through the default endpoint until\nrpmsg_chrdev_eptdev_add() succeeds. Messages received before the priv\npointer is published should be ignored by rpmsg_ept_cb(). Flow-control\nupdates can hit rpmsg_ept_flow_cb() in the same window, so make both\ncallbacks return success when priv is NULL.",
"id": "GHSA-86gp-v777-h747",
"modified": "2026-07-24T15:32:42Z",
"published": "2026-07-19T12:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63797"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/104d100212396801f1d9d388282f746e23e2bfd6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1306fc4f76f765727a6d5aefbf08ef0c8f32996f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1ff3f528e67d20e2b1483dcaba899dc7832b2e6b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c5ebb06c7e24d531b68707168e04698859d642bc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ddf13f91ca82c94ef7ad9c41a434a03313f8eb1b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ff268cd9ccbce6472a0658791b417bf11c31ee39"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-86JJ-HQJW-MJ6H
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-54127"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:17:04Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.",
"id": "GHSA-86jj-hqjw-mj6h",
"modified": "2026-07-14T18:32:07Z",
"published": "2026-07-14T18:32:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54127"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54127"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-86JQ-45RR-83Q7
Vulnerability from github – Published: 2022-03-11 00:02 – Updated: 2022-03-17 00:01Use after free vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file. This vulnerability is different from CVE-2022-25325.
{
"affected": [],
"aliases": [
"CVE-2022-25230"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-10T17:47:00Z",
"severity": "HIGH"
},
"details": "Use after free vulnerability in CX-Programmer v9.76.1 and earlier which is a part of CX-One (v4.60) suite allows an attacker to cause information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file. This vulnerability is different from CVE-2022-25325.",
"id": "GHSA-86jq-45rr-83q7",
"modified": "2022-03-17T00:01:23Z",
"published": "2022-03-11T00:02:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25230"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU90121984/index.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-86PF-577R-267C
Vulnerability from github – Published: 2025-04-29 03:30 – Updated: 2025-04-29 15:31A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.3 and iPadOS 18.3, visionOS 2.3, macOS Ventura 13.7.5, iPadOS 17.7.6, macOS Sonoma 14.7.5, macOS Sequoia 15.3, tvOS 18.3. An attacker on the local network may be able to cause a denial-of-service.
{
"affected": [],
"aliases": [
"CVE-2025-24179"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-29T03:15:34Z",
"severity": "MODERATE"
},
"details": "A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.3 and iPadOS 18.3, visionOS 2.3, macOS Ventura 13.7.5, iPadOS 17.7.6, macOS Sonoma 14.7.5, macOS Sequoia 15.3, tvOS 18.3. An attacker on the local network may be able to cause a denial-of-service.",
"id": "GHSA-86pf-577r-267c",
"modified": "2025-04-29T15:31:50Z",
"published": "2025-04-29T03:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24179"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122066"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122068"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122072"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122073"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122372"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122374"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122375"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-86PR-H8WV-6HGC
Vulnerability from github – Published: 2025-02-11 18:31 – Updated: 2025-02-11 18:31Microsoft Excel Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2025-21386"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-11T18:15:37Z",
"severity": "HIGH"
},
"details": "Microsoft Excel Remote Code Execution Vulnerability",
"id": "GHSA-86pr-h8wv-6hgc",
"modified": "2025-02-11T18:31:39Z",
"published": "2025-02-11T18:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21386"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21386"
}
],
"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-86VM-VP8G-7929
Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-07-08 21:30In the Linux kernel, the following vulnerability has been resolved:
net: ibm: emac: Fix use-after-free during device removal
The driver was using devm_register_netdev() which causes unregister_netdev() to be deferred until the devres cleanup phase, which runs after emac_remove() returns. This creates a use-after-free window where:
- emac_remove() is called, which tears down hardware (cancels work, detaches modules, unregisters from MAL)
- emac_remove() returns
- devres cleanup runs and finally calls unregister_netdev()
During step 3, the network stack might still process packets, triggering emac_irq(), emac_poll(), or other handlers that access now-freed hardware resources (dev->emacp, dev->mal, etc.).
Fix this by replacing devm_register_netdev() with manual register_netdev() and calling unregister_netdev() at the beginning of emac_remove(), before any hardware teardown. This ensures the network device is fully stopped and unregistered before hardware resources are released.
The change is safe because: - dev->ndev is assigned very early in probe (before any error paths that could bypass emac_remove) - platform_set_drvdata() is only called after successful registration, so emac_remove() only runs for fully registered devices - unregister_netdev() is idempotent and safe to call on any registered device
{
"affected": [],
"aliases": [
"CVE-2026-53234"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T09:16:41Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ibm: emac: Fix use-after-free during device removal\n\nThe driver was using devm_register_netdev() which causes unregister_netdev()\nto be deferred until the devres cleanup phase, which runs after emac_remove()\nreturns. This creates a use-after-free window where:\n\n1. emac_remove() is called, which tears down hardware (cancels work, detaches\n modules, unregisters from MAL)\n2. emac_remove() returns\n3. devres cleanup runs and finally calls unregister_netdev()\n\nDuring step 3, the network stack might still process packets, triggering\nemac_irq(), emac_poll(), or other handlers that access now-freed hardware\nresources (dev-\u003eemacp, dev-\u003emal, etc.).\n\nFix this by replacing devm_register_netdev() with manual register_netdev()\nand calling unregister_netdev() at the beginning of emac_remove(), before\nany hardware teardown. This ensures the network device is fully stopped and\nunregistered before hardware resources are released.\n\nThe change is safe because:\n- dev-\u003endev is assigned very early in probe (before any error paths that\n could bypass emac_remove)\n- platform_set_drvdata() is only called after successful registration, so\n emac_remove() only runs for fully registered devices\n- unregister_netdev() is idempotent and safe to call on any registered device",
"id": "GHSA-86vm-vp8g-7929",
"modified": "2026-07-08T21:30:23Z",
"published": "2026-06-25T09:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53234"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a0130d682222ae21afc395aead7cd2d87e1a8358"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c09c2e236eef6f59e105f38a30f5439e6ccbcad7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c12584cd6078085d707266be864e7e1cc91d74e3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf8e14db93eaecc4c0c58299be3b3183b0e53ed5"
}
],
"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-86WJ-XG3C-R8GX
Vulnerability from github – Published: 2022-10-17 19:00 – Updated: 2025-11-04 00:30A vulnerability was found in Exim and classified as critical. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2022-3559"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-17T18:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in Exim and classified as critical. This issue affects some unknown processing of the component Regex Handler. The manipulation leads to use after free. The name of the patch is 4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2. It is recommended to apply a patch to fix this issue. The identifier VDB-211073 was assigned to this vulnerability.",
"id": "GHSA-86wj-xg3c-r8gx",
"modified": "2025-11-04T00:30:33Z",
"published": "2022-10-17T19:00:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3559"
},
{
"type": "WEB",
"url": "https://bugs.exim.org/show_bug.cgi?id=2915"
},
{
"type": "WEB",
"url": "https://git.exim.org/exim.git/commit/4e9ed49f8f12eb331b29bd5b6dc3693c520fddc2"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EIH4W5R7SHTUEQFWWKB4TUO5YFZX64KV"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMQ6OCKPNPBPSD37YR4FOWV2R54M2UEP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WFHLZVHNNO2GWYP5EA4TZQZ5O4GVPARR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EIH4W5R7SHTUEQFWWKB4TUO5YFZX64KV"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMQ6OCKPNPBPSD37YR4FOWV2R54M2UEP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WFHLZVHNNO2GWYP5EA4TZQZ5O4GVPARR"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.211073"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8724-VRJJ-443H
Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2022-05-14 00:53Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.
{
"affected": [],
"aliases": [
"CVE-2018-4980"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-09T19:29:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.",
"id": "GHSA-8724-vrjj-443h",
"modified": "2022-05-14T00:53:46Z",
"published": "2022-05-14T00:53:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-4980"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-09.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-18-464"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104169"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040920"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8737-2W76-FPFM
Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-09-03 18:31In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: udc: Fix use-after-free in gadget_match_driver
The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usb_del_gadget() frees the udc memory (e.g., via mode-switch work) while gadget_match_driver() concurrently accesses the freed udc memory (e.g., via configfs), causing a Use-After-Free (UAF) that triggers a NULL pointer dereference when the freed memory is zeroed:
[39430.908615][ T1171] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [39430.911397][ T1171] pc : __pi_strcmp+0x20/0x140 [39430.911441][ T1171] lr : gadget_match_driver+0x34/0x60 ... [39430.911890][ T1171] usb_gadget_register_driver_owner+0x50/0xf8 [39430.911910][ T1171] gadget_dev_desc_UDC_store+0xf4/0x140 [39430.931308][ T1171] configfs_write_iter+0xec/0x134
[39430.957058][ T1171] Workqueue: events_freezable __dwc3_set_mode [39430.957287][ T1171] dwc3_gadget_exit+0x34/0x8c [39430.957304][ T1171] __dwc3_set_mode+0xc0/0x664
Fix this by ensuring the udc structure remains allocated until the gadget is released. To achieve this, introduce a new usb_gadget_release() routine to the core. When the gadget is added, usb_add_gadget() stores the gadget's release routine in the udc structure and takes a reference to the udc. When the gadget is released, usb_gadget_release() drops the reference to the udc and then calls the gadget's release routine.
{
"affected": [],
"aliases": [
"CVE-2026-64346"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-25T10:17:16Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: udc: Fix use-after-free in gadget_match_driver\n\nThe udc structure acts as the management structure for the gadget,\nbut their lifecycles are decoupled. A race condition exists where\nusb_del_gadget() frees the udc memory (e.g., via mode-switch work)\nwhile gadget_match_driver() concurrently accesses the freed udc memory\n(e.g., via configfs), causing a Use-After-Free (UAF) that triggers a\nNULL pointer dereference when the freed memory is zeroed:\n\n[39430.908615][ T1171] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[39430.911397][ T1171] pc : __pi_strcmp+0x20/0x140\n[39430.911441][ T1171] lr : gadget_match_driver+0x34/0x60\n...\n[39430.911890][ T1171] usb_gadget_register_driver_owner+0x50/0xf8\n[39430.911910][ T1171] gadget_dev_desc_UDC_store+0xf4/0x140\n[39430.931308][ T1171] configfs_write_iter+0xec/0x134\n\n[39430.957058][ T1171] Workqueue: events_freezable __dwc3_set_mode\n[39430.957287][ T1171] dwc3_gadget_exit+0x34/0x8c\n[39430.957304][ T1171] __dwc3_set_mode+0xc0/0x664\n\nFix this by ensuring the udc structure remains allocated until the\ngadget is released. To achieve this, introduce a new\nusb_gadget_release() routine to the core. When the gadget is added,\nusb_add_gadget() stores the gadget\u0027s release routine in the udc\nstructure and takes a reference to the udc. When the gadget is\nreleased, usb_gadget_release() drops the reference to the udc and\nthen calls the gadget\u0027s release routine.",
"id": "GHSA-8737-2w76-fpfm",
"modified": "2026-09-03T18:31:17Z",
"published": "2026-07-25T12:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64346"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/50eeb8e8a4f389efc91b93cff14a683e714ec194"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/54fa390aae393eb130f307a85562e3001cc39a52"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/67e511d2989eb1c8c588b599ce2fcc6bb8e6f7ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7a5214dae906d9f58e07bc4995e8181ee74439f4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b52476a83d9e12df00765359d728a875b128bef1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d026f71df141c9b064ff32a78af5391a31ef75c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f845852a5a8914277031f47d8de0f350fef52405"
}
],
"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-873H-38H4-56JX
Vulnerability from github – Published: 2022-05-24 16:51 – Updated: 2024-04-04 01:23An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
{
"affected": [],
"aliases": [
"CVE-2018-20856"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-26T05:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.",
"id": "GHSA-873h-38h4-56jx",
"modified": "2024-04-04T01:23:05Z",
"published": "2022-05-24T16:51:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20856"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4497"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4118-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4116-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4094-1"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K14673240?utm_source=f5support\u0026amp%3Butm_medium=RSS"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190905-0002"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Aug/26"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Aug/18"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0698"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0664"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0543"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0103"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0100"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3217"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3089"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3076"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3055"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/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.