CWE-401
AllowedMissing Release of Memory after Effective Lifetime
Abstraction: Variant · Status: Draft
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
2165 vulnerabilities reference this CWE, most recent first.
GHSA-7MRH-GFR7-2P24
Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-07-08 18:31In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: fix memory leak in error path of hci_alloc_dev()
Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory.
When device initialization fails before hci_register_dev() completes, the HCI_UNREGISTER flag is never set. As a result, when the device reference count reaches zero, bt_host_release() evaluates this flag as false and falls back to a direct kfree(hdev).
Because hci_release_dev() is bypassed, the SRCU struct initialized early in hci_alloc_dev() is never cleaned up, resulting in a leak of percpu memory.
Fix the leak by explicitly calling cleanup_srcu_struct() in the fallback (unregistered) branch of bt_host_release() before freeing the device.
{
"affected": [],
"aliases": [
"CVE-2026-53252"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T09:16:43Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix memory leak in error path of hci_alloc_dev()\n\nEarly failures in Bluetooth HCI UART configuration leak SRCU percpu\nmemory.\n\nWhen device initialization fails before hci_register_dev() completes,\nthe HCI_UNREGISTER flag is never set. As a result, when the device\nreference count reaches zero, bt_host_release() evaluates this flag as\nfalse and falls back to a direct kfree(hdev).\n\nBecause hci_release_dev() is bypassed, the SRCU struct initialized\nearly in hci_alloc_dev() is never cleaned up, resulting in a leak of\npercpu memory.\n\nFix the leak by explicitly calling cleanup_srcu_struct() in the\nfallback (unregistered) branch of bt_host_release() before freeing\nthe device.",
"id": "GHSA-7mrh-gfr7-2p24",
"modified": "2026-07-08T18:31:32Z",
"published": "2026-06-25T09:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53252"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0622e527a31d4b44737fed5c1a2ac1fc2cfb5184"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/37b3009bf5976e8ab77c8b9a9bc3bbd7ff49e37f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5b7dfca6f852e6b9d809fd0263b5427cc9fb33fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bc2efe73c194a74839d7cf57b63880d97e21d309"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c016118b9e51eeaf5bc93850d4c455a3b583c0aa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce4b4cac3c5749b6aa75e62e2991ae2263f2f889"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f82799407a50af7bcacacf09cc9b279af8fe9b81"
}
],
"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-7PGX-8VW6-GXGV
Vulnerability from github – Published: 2026-01-25 15:30 – Updated: 2026-07-14 15:31In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: fix device leaks on compat bind and unbind
Make sure to drop the reference taken when looking up the idxd device as part of the compat bind and unbind sysfs interface.
{
"affected": [],
"aliases": [
"CVE-2025-71163"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-25T15:15:54Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: fix device leaks on compat bind and unbind\n\nMake sure to drop the reference taken when looking up the idxd device as\npart of the compat bind and unbind sysfs interface.",
"id": "GHSA-7pgx-8vw6-gxgv",
"modified": "2026-07-14T15:31:33Z",
"published": "2026-01-25T15:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71163"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0c97ff108f825a70c3bb29d65ddf0a013d231bb9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/799900f01792cf8b525a44764f065f83fcafd468"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a7226fd61def74b60dd8e47ec84cabafc39d575b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b2d077180a56e3b7c97b7517d0465b584adc693b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b7bd948f89271c92d9ca9b2b682bfba56896e959"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c81ea0222eaaafdd77348e27d1e84a1b8cfc0c99"
}
],
"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-7PXC-HV76-QWG9
Vulnerability from github – Published: 2022-05-13 01:10 – Updated: 2022-05-13 01:10In ImageMagick before 7.0.8-25 and GraphicsMagick through 1.3.31, several memory leaks exist in WritePDFImage in coders/pdf.c.
{
"affected": [],
"aliases": [
"CVE-2019-7397"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-05T00:29:00Z",
"severity": "HIGH"
},
"details": "In ImageMagick before 7.0.8-25 and GraphicsMagick through 1.3.31, several memory leaks exist in WritePDFImage in coders/pdf.c.",
"id": "GHSA-7pxc-hv76-qwg9",
"modified": "2022-05-13T01:10:29Z",
"published": "2022-05-13T01:10:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7397"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/1454"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/306c1f0fa5754ca78efd16ab752f0e981d4f6b82"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4034-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4712"
},
{
"type": "WEB",
"url": "http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/11ad3aeb8ab1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00034.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00006.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106847"
}
],
"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-7Q3W-F4RC-VR9M
Vulnerability from github – Published: 2025-05-19 03:30 – Updated: 2025-05-19 03:30In Node.js, the ReadFileUtf8 internal binding leaks memory due to a corrupted pointer in uv_fs_s.file: a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service.
Impact:
* This vulnerability affects APIs relying on ReadFileUtf8 on Node.js release lines: v20 and v22.
{
"affected": [],
"aliases": [
"CVE-2025-23122"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-19T02:15:17Z",
"severity": "LOW"
},
"details": "In Node.js, the `ReadFileUtf8` internal binding leaks memory due to a corrupted pointer in `uv_fs_s.file`: a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service.\n\nImpact:\n* This vulnerability affects APIs relying on `ReadFileUtf8` on Node.js release lines: v20 and v22.",
"id": "GHSA-7q3w-f4rc-vr9m",
"modified": "2025-05-19T03:30:29Z",
"published": "2025-05-19T03:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23122"
},
{
"type": "WEB",
"url": "https://nodejs.org/en/blog/vulnerability/may-2025-security-releases"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-7Q6X-5WQ3-W7MH
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-21 00:00Dell PowerScale OneFS, 8.2.2 - 9.3.0.x, contain a missing release of memory after effective lifetime vulnerability. An authenticated user with ISI_PRIV_LOGIN_SSH and/or ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_AUTH_PROVIDERS privileges could exploit this vulnerability, leading to a Denial-Of-Service. This can also impact a cluster in Compliance mode. Dell recommends to update at the earliest opportunity.
{
"affected": [],
"aliases": [
"CVE-2022-23159"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-12T18:15:00Z",
"severity": "MODERATE"
},
"details": "Dell PowerScale OneFS, 8.2.2 - 9.3.0.x, contain a missing release of memory after effective lifetime vulnerability. An authenticated user with ISI_PRIV_LOGIN_SSH and/or ISI_PRIV_LOGIN_CONSOLE and ISI_PRIV_AUTH_PROVIDERS privileges could exploit this vulnerability, leading to a Denial-Of-Service. This can also impact a cluster in Compliance mode. Dell recommends to update at the earliest opportunity.",
"id": "GHSA-7q6x-5wq3-w7mh",
"modified": "2022-04-21T00:00:47Z",
"published": "2022-04-13T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23159"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/000196009"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7QQ5-WFV8-HVVH
Vulnerability from github – Published: 2026-02-02 15:30 – Updated: 2026-04-22 12:30A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.
{
"affected": [],
"aliases": [
"CVE-2026-1757"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-02T13:15:58Z",
"severity": "MODERATE"
},
"details": "A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.",
"id": "GHSA-7qq5-wfv8-hvvh",
"modified": "2026-04-22T12:30:29Z",
"published": "2026-02-02T15:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1757"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7519"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-1757"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2435940"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1009"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7QX4-MVFM-598F
Vulnerability from github – Published: 2022-01-26 00:01 – Updated: 2022-01-28 00:02Jsish v3.5.0 was discovered to contain a memory leak via linenoise at src/linenoise.c.
{
"affected": [],
"aliases": [
"CVE-2021-46481"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-25T01:15:00Z",
"severity": "MODERATE"
},
"details": "Jsish v3.5.0 was discovered to contain a memory leak via linenoise at src/linenoise.c.",
"id": "GHSA-7qx4-mvfm-598f",
"modified": "2022-01-28T00:02:23Z",
"published": "2022-01-26T00:01:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46481"
},
{
"type": "WEB",
"url": "https://github.com/pcmacdon/jsish/issues/55"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-7R25-M49H-VW58
Vulnerability from github – Published: 2024-02-27 21:31 – Updated: 2024-12-06 18:30In the Linux kernel, the following vulnerability has been resolved:
virtiofs: fix memory leak in virtio_fs_probe()
When accidentally passing twice the same tag to qemu, kmemleak ended up reporting a memory leak in virtiofs. Also, looking at the log I saw the following error (that's when I realised the duplicated tag):
virtiofs: probe of virtio5 failed with error -17
Here's the kmemleak log for reference:
unreferenced object 0xffff888103d47800 (size 1024): comm "systemd-udevd", pid 118, jiffies 4294893780 (age 18.340s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 80 90 02 a0 ff ff ff ff ................ backtrace: [<000000000ebb87c1>] virtio_fs_probe+0x171/0x7ae [virtiofs] [<00000000f8aca419>] virtio_dev_probe+0x15f/0x210 [<000000004d6baf3c>] really_probe+0xea/0x430 [<00000000a6ceeac8>] device_driver_attach+0xa8/0xb0 [<00000000196f47a7>] __driver_attach+0x98/0x140 [<000000000b20601d>] bus_for_each_dev+0x7b/0xc0 [<00000000399c7b7f>] bus_add_driver+0x11b/0x1f0 [<0000000032b09ba7>] driver_register+0x8f/0xe0 [<00000000cdd55998>] 0xffffffffa002c013 [<000000000ea196a2>] do_one_initcall+0x64/0x2e0 [<0000000008f727ce>] do_init_module+0x5c/0x260 [<000000003cdedab6>] __do_sys_finit_module+0xb5/0x120 [<00000000ad2f48c6>] do_syscall_64+0x33/0x40 [<00000000809526b5>] entry_SYSCALL_64_after_hwframe+0x44/0xae
{
"affected": [],
"aliases": [
"CVE-2021-46956"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-27T19:04:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtiofs: fix memory leak in virtio_fs_probe()\n\nWhen accidentally passing twice the same tag to qemu, kmemleak ended up\nreporting a memory leak in virtiofs. Also, looking at the log I saw the\nfollowing error (that\u0027s when I realised the duplicated tag):\n\n virtiofs: probe of virtio5 failed with error -17\n\nHere\u0027s the kmemleak log for reference:\n\nunreferenced object 0xffff888103d47800 (size 1024):\n comm \"systemd-udevd\", pid 118, jiffies 4294893780 (age 18.340s)\n hex dump (first 32 bytes):\n 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........\n ff ff ff ff ff ff ff ff 80 90 02 a0 ff ff ff ff ................\n backtrace:\n [\u003c000000000ebb87c1\u003e] virtio_fs_probe+0x171/0x7ae [virtiofs]\n [\u003c00000000f8aca419\u003e] virtio_dev_probe+0x15f/0x210\n [\u003c000000004d6baf3c\u003e] really_probe+0xea/0x430\n [\u003c00000000a6ceeac8\u003e] device_driver_attach+0xa8/0xb0\n [\u003c00000000196f47a7\u003e] __driver_attach+0x98/0x140\n [\u003c000000000b20601d\u003e] bus_for_each_dev+0x7b/0xc0\n [\u003c00000000399c7b7f\u003e] bus_add_driver+0x11b/0x1f0\n [\u003c0000000032b09ba7\u003e] driver_register+0x8f/0xe0\n [\u003c00000000cdd55998\u003e] 0xffffffffa002c013\n [\u003c000000000ea196a2\u003e] do_one_initcall+0x64/0x2e0\n [\u003c0000000008f727ce\u003e] do_init_module+0x5c/0x260\n [\u003c000000003cdedab6\u003e] __do_sys_finit_module+0xb5/0x120\n [\u003c00000000ad2f48c6\u003e] do_syscall_64+0x33/0x40\n [\u003c00000000809526b5\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae",
"id": "GHSA-7r25-m49h-vw58",
"modified": "2024-12-06T18:30:44Z",
"published": "2024-02-27T21:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46956"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/310efc95c72c13faf855c692d19cd4d054d827c8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5116e79fc6e6725b8acdad8b7e928a83ab7b47e6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9b9d60c0eb8ada99cce2a9ab5c15dffc523b01ae"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c79c5e0178922a9e092ec8fed026750f39dcaef4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d19555ff225d0896a33246a49279e6d578095f15"
}
],
"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-7R2W-9MRV-HFQG
Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-30 21:30In the Linux kernel, the following vulnerability has been resolved:
net: hamradio: fix memory leak in mkiss_close
My local syzbot instance hit memory leak in mkiss_open()[1]. The problem was in missing free_netdev() in mkiss_close().
In mkiss_open() netdevice is allocated and then registered, but in mkiss_close() netdevice was only unregistered, but not freed.
Fail log:
BUG: memory leak unreferenced object 0xffff8880281ba000 (size 4096): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): 61 78 30 00 00 00 00 00 00 00 00 00 00 00 00 00 ax0............. 00 27 fa 2a 80 88 ff ff 00 00 00 00 00 00 00 00 .'.*............ backtrace: [] kvmalloc_node+0x61/0xf0 [] alloc_netdev_mqs+0x98/0xe80 [] mkiss_open+0xb2/0x6f0 [1] [] tty_ldisc_open+0x9b/0x110 [] tty_set_ldisc+0x2e8/0x670 [] tty_ioctl+0xda3/0x1440 [] __x64_sys_ioctl+0x193/0x200 [] do_syscall_64+0x3a/0xb0 [] entry_SYSCALL_64_after_hwframe+0x44/0xae
BUG: memory leak unreferenced object 0xffff8880141a9a00 (size 96): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): e8 a2 1b 28 80 88 ff ff e8 a2 1b 28 80 88 ff ff ...(.......(.... 98 92 9c aa b0 40 02 00 00 00 00 00 00 00 00 00 .....@.......... backtrace: [] __hw_addr_create_ex+0x5b/0x310 [] __hw_addr_add_ex+0x1f8/0x2b0 [] dev_addr_init+0x10b/0x1f0 [] alloc_netdev_mqs+0x13b/0xe80 [] mkiss_open+0xb2/0x6f0 [1] [] tty_ldisc_open+0x9b/0x110 [] tty_set_ldisc+0x2e8/0x670 [] tty_ioctl+0xda3/0x1440 [] __x64_sys_ioctl+0x193/0x200 [] do_syscall_64+0x3a/0xb0 [] entry_SYSCALL_64_after_hwframe+0x44/0xae
BUG: memory leak unreferenced object 0xffff8880219bfc00 (size 512): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): 00 a0 1b 28 80 88 ff ff 80 8f b1 8d ff ff ff ff ...(............ 80 8f b1 8d ff ff ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [] kvmalloc_node+0x61/0xf0 [] alloc_netdev_mqs+0x777/0xe80 [] mkiss_open+0xb2/0x6f0 [1] [] tty_ldisc_open+0x9b/0x110 [] tty_set_ldisc+0x2e8/0x670 [] tty_ioctl+0xda3/0x1440 [] __x64_sys_ioctl+0x193/0x200 [] do_syscall_64+0x3a/0xb0 [] entry_SYSCALL_64_after_hwframe+0x44/0xae
BUG: memory leak unreferenced object 0xffff888029b2b200 (size 256): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kvmalloc_node+0x61/0xf0 [] alloc_netdev_mqs+0x912/0xe80 [] mkiss_open+0xb2/0x6f0 [1] [] tty_ldisc_open+0x9b/0x110 [] tty_set_ldisc+0x2e8/0x670 [] tty_ioctl+0xda3/0x1440 [] __x64_sys_ioctl+0x193/0x200 [] do_syscall_64+0x3a/0xb0 [] entry_SYSCALL_64_after_hwframe+0x44/0xae
{
"affected": [],
"aliases": [
"CVE-2021-47237"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:12Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hamradio: fix memory leak in mkiss_close\n\nMy local syzbot instance hit memory leak in\nmkiss_open()[1]. The problem was in missing\nfree_netdev() in mkiss_close().\n\nIn mkiss_open() netdevice is allocated and then\nregistered, but in mkiss_close() netdevice was\nonly unregistered, but not freed.\n\nFail log:\n\nBUG: memory leak\nunreferenced object 0xffff8880281ba000 (size 4096):\n comm \"syz-executor.1\", pid 11443, jiffies 4295046091 (age 17.660s)\n hex dump (first 32 bytes):\n 61 78 30 00 00 00 00 00 00 00 00 00 00 00 00 00 ax0.............\n 00 27 fa 2a 80 88 ff ff 00 00 00 00 00 00 00 00 .\u0027.*............\n backtrace:\n [\u003cffffffff81a27201\u003e] kvmalloc_node+0x61/0xf0\n [\u003cffffffff8706e7e8\u003e] alloc_netdev_mqs+0x98/0xe80\n [\u003cffffffff84e64192\u003e] mkiss_open+0xb2/0x6f0 [1]\n [\u003cffffffff842355db\u003e] tty_ldisc_open+0x9b/0x110\n [\u003cffffffff84236488\u003e] tty_set_ldisc+0x2e8/0x670\n [\u003cffffffff8421f7f3\u003e] tty_ioctl+0xda3/0x1440\n [\u003cffffffff81c9f273\u003e] __x64_sys_ioctl+0x193/0x200\n [\u003cffffffff8911263a\u003e] do_syscall_64+0x3a/0xb0\n [\u003cffffffff89200068\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBUG: memory leak\nunreferenced object 0xffff8880141a9a00 (size 96):\n comm \"syz-executor.1\", pid 11443, jiffies 4295046091 (age 17.660s)\n hex dump (first 32 bytes):\n e8 a2 1b 28 80 88 ff ff e8 a2 1b 28 80 88 ff ff ...(.......(....\n 98 92 9c aa b0 40 02 00 00 00 00 00 00 00 00 00 .....@..........\n backtrace:\n [\u003cffffffff8709f68b\u003e] __hw_addr_create_ex+0x5b/0x310\n [\u003cffffffff8709fb38\u003e] __hw_addr_add_ex+0x1f8/0x2b0\n [\u003cffffffff870a0c7b\u003e] dev_addr_init+0x10b/0x1f0\n [\u003cffffffff8706e88b\u003e] alloc_netdev_mqs+0x13b/0xe80\n [\u003cffffffff84e64192\u003e] mkiss_open+0xb2/0x6f0 [1]\n [\u003cffffffff842355db\u003e] tty_ldisc_open+0x9b/0x110\n [\u003cffffffff84236488\u003e] tty_set_ldisc+0x2e8/0x670\n [\u003cffffffff8421f7f3\u003e] tty_ioctl+0xda3/0x1440\n [\u003cffffffff81c9f273\u003e] __x64_sys_ioctl+0x193/0x200\n [\u003cffffffff8911263a\u003e] do_syscall_64+0x3a/0xb0\n [\u003cffffffff89200068\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBUG: memory leak\nunreferenced object 0xffff8880219bfc00 (size 512):\n comm \"syz-executor.1\", pid 11443, jiffies 4295046091 (age 17.660s)\n hex dump (first 32 bytes):\n 00 a0 1b 28 80 88 ff ff 80 8f b1 8d ff ff ff ff ...(............\n 80 8f b1 8d ff ff ff ff 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003cffffffff81a27201\u003e] kvmalloc_node+0x61/0xf0\n [\u003cffffffff8706eec7\u003e] alloc_netdev_mqs+0x777/0xe80\n [\u003cffffffff84e64192\u003e] mkiss_open+0xb2/0x6f0 [1]\n [\u003cffffffff842355db\u003e] tty_ldisc_open+0x9b/0x110\n [\u003cffffffff84236488\u003e] tty_set_ldisc+0x2e8/0x670\n [\u003cffffffff8421f7f3\u003e] tty_ioctl+0xda3/0x1440\n [\u003cffffffff81c9f273\u003e] __x64_sys_ioctl+0x193/0x200\n [\u003cffffffff8911263a\u003e] do_syscall_64+0x3a/0xb0\n [\u003cffffffff89200068\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBUG: memory leak\nunreferenced object 0xffff888029b2b200 (size 256):\n comm \"syz-executor.1\", pid 11443, jiffies 4295046091 (age 17.660s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003cffffffff81a27201\u003e] kvmalloc_node+0x61/0xf0\n [\u003cffffffff8706f062\u003e] alloc_netdev_mqs+0x912/0xe80\n [\u003cffffffff84e64192\u003e] mkiss_open+0xb2/0x6f0 [1]\n [\u003cffffffff842355db\u003e] tty_ldisc_open+0x9b/0x110\n [\u003cffffffff84236488\u003e] tty_set_ldisc+0x2e8/0x670\n [\u003cffffffff8421f7f3\u003e] tty_ioctl+0xda3/0x1440\n [\u003cffffffff81c9f273\u003e] __x64_sys_ioctl+0x193/0x200\n [\u003cffffffff8911263a\u003e] do_syscall_64+0x3a/0xb0\n [\u003cffffffff89200068\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae",
"id": "GHSA-7r2w-9mrv-hfqg",
"modified": "2024-12-30T21:30:46Z",
"published": "2024-05-21T15:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47237"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/290b0b6432e2599021db0b8d6046f756d931c29f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3942d0f9ace1a95a74930b5b4fc0e5005c62b37b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/765a8a04f828db7222b36a42b1031f576bfe95c3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7edcc682301492380fbdd604b4516af5ae667a13"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a49cbb762ef20655f5c91abdc13658b0af5e159d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c16c4716a1b5ba4f83c7e00da457cba06761f119"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c634ba0b4159838ff45a60d3a0ace3b4118077a5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f4de2b43d13b7cf3ced9310e371b90c836dbd7cd"
}
],
"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-7R62-FW3J-XJQF
Vulnerability from github – Published: 2025-10-04 18:31 – Updated: 2026-02-05 18:30In the Linux kernel, the following vulnerability has been resolved:
ipmi_si: fix a memleak in try_smi_init()
Kmemleak reported the following leak info in try_smi_init():
unreferenced object 0xffff00018ecf9400 (size 1024): comm "modprobe", pid 2707763, jiffies 4300851415 (age 773.308s) backtrace: [<000000004ca5b312>] __kmalloc+0x4b8/0x7b0 [<00000000953b1072>] try_smi_init+0x148/0x5dc [ipmi_si] [<000000006460d325>] 0xffff800081b10148 [<0000000039206ea5>] do_one_initcall+0x64/0x2a4 [<00000000601399ce>] do_init_module+0x50/0x300 [<000000003c12ba3c>] load_module+0x7a8/0x9e0 [<00000000c246fffe>] __se_sys_init_module+0x104/0x180 [<00000000eea99093>] __arm64_sys_init_module+0x24/0x30 [<0000000021b1ef87>] el0_svc_common.constprop.0+0x94/0x250 [<0000000070f4f8b7>] do_el0_svc+0x48/0xe0 [<000000005a05337f>] el0_svc+0x24/0x3c [<000000005eb248d6>] el0_sync_handler+0x160/0x164 [<0000000030a59039>] el0_sync+0x160/0x180
The problem was that when an error occurred before handlers registration
and after allocating new_smi->si_sm, the variable wouldn't be freed in
the error handling afterwards since shutdown_smi() hadn't been
registered yet. Fix it by adding a kfree() in the error handling path
in try_smi_init().
{
"affected": [],
"aliases": [
"CVE-2023-53611"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-04T16:15:57Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi_si: fix a memleak in try_smi_init()\n\nKmemleak reported the following leak info in try_smi_init():\n\nunreferenced object 0xffff00018ecf9400 (size 1024):\n comm \"modprobe\", pid 2707763, jiffies 4300851415 (age 773.308s)\n backtrace:\n [\u003c000000004ca5b312\u003e] __kmalloc+0x4b8/0x7b0\n [\u003c00000000953b1072\u003e] try_smi_init+0x148/0x5dc [ipmi_si]\n [\u003c000000006460d325\u003e] 0xffff800081b10148\n [\u003c0000000039206ea5\u003e] do_one_initcall+0x64/0x2a4\n [\u003c00000000601399ce\u003e] do_init_module+0x50/0x300\n [\u003c000000003c12ba3c\u003e] load_module+0x7a8/0x9e0\n [\u003c00000000c246fffe\u003e] __se_sys_init_module+0x104/0x180\n [\u003c00000000eea99093\u003e] __arm64_sys_init_module+0x24/0x30\n [\u003c0000000021b1ef87\u003e] el0_svc_common.constprop.0+0x94/0x250\n [\u003c0000000070f4f8b7\u003e] do_el0_svc+0x48/0xe0\n [\u003c000000005a05337f\u003e] el0_svc+0x24/0x3c\n [\u003c000000005eb248d6\u003e] el0_sync_handler+0x160/0x164\n [\u003c0000000030a59039\u003e] el0_sync+0x160/0x180\n\nThe problem was that when an error occurred before handlers registration\nand after allocating `new_smi-\u003esi_sm`, the variable wouldn\u0027t be freed in\nthe error handling afterwards since `shutdown_smi()` hadn\u0027t been\nregistered yet. Fix it by adding a `kfree()` in the error handling path\nin `try_smi_init()`.",
"id": "GHSA-7r62-fw3j-xjqf",
"modified": "2026-02-05T18:30:29Z",
"published": "2025-10-04T18:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53611"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/09cb2a71b2e982015fe0464f28da1ab42b8e6375"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1bfcfea0fae0d0a6c6ff5543e6d704b3807b83ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5c5f02e16b919c8cb6024dc3778c8d8f1fb1f26b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6cf1a126de2992b4efe1c3c4d398f8de4aed6e3f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7291af9a738d936c2d6869d030711dceb68404d0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b9bc8fbb2d416ce87f0342478dc9fcfd79f2c65f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cbb7d8a4b4beb3061b3a1847a742983a01dca381"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f53ab5a2bf20fed59a2f7542d3453228b8056358"
}
],
"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 MIT-41
Strategy: Libraries or Frameworks
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.
No CAPEC attack patterns related to this CWE.