CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6305 vulnerabilities reference this CWE, most recent first.
GHSA-64W2-5C96-V3QJ
Vulnerability from github – Published: 2024-10-21 21:30 – Updated: 2024-10-25 15:31In the Linux kernel, the following vulnerability has been resolved:
mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()
Kernel fault injection test reports null-ptr-deref as follows:
BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114 Call Trace: raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87 call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944 unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982 unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879 register_netdevice+0x9a8/0xb90 net/core/dev.c:10083 ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659 ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229 mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316
ieee802154_if_add() allocates wpan_dev as netdev's private data, but not init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage the list when device register/unregister, and may lead to null-ptr-deref.
Use INIT_LIST_HEAD() on it to initialize it correctly.
{
"affected": [],
"aliases": [
"CVE-2022-48972"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T20:15:09Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()\n\nKernel fault injection test reports null-ptr-deref as follows:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114\nCall Trace:\n \u003cTASK\u003e\n raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87\n call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944\n unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982\n unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879\n register_netdevice+0x9a8/0xb90 net/core/dev.c:10083\n ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659\n ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229\n mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316\n\nieee802154_if_add() allocates wpan_dev as netdev\u0027s private data, but not\ninit the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage\nthe list when device register/unregister, and may lead to null-ptr-deref.\n\nUse INIT_LIST_HEAD() on it to initialize it correctly.",
"id": "GHSA-64w2-5c96-v3qj",
"modified": "2024-10-25T15:31:26Z",
"published": "2024-10-21T21:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48972"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1831d4540406708e48239cf38fd9c3b7ea98e08f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42c319635c0cf7eb36eccac6cda76532f47b61a3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/623918f40fa68e3bb21312a3fafb90f491bf5358"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7410f4d1221bb182510b7778ab6eefa8b9b7102d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9980a3ea20de40c83817877106c909cb032692d2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a110287ef4a423980309490df632e1c1e73b3dc9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b3d72d3135d2ef68296c1ee174436efd65386f04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f00c84fb1635c27ba24ec5df65d5bd7d7dc00008"
}
],
"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-64WG-R59G-C9JM
Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2025-04-20 03:41A maliciously constructed HTTP/2 request could cause mod_http2 in Apache HTTP Server 2.4.24, 2.4.25 to dereference a NULL pointer and crash the server process.
{
"affected": [],
"aliases": [
"CVE-2017-7659"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-26T21:29:00Z",
"severity": "HIGH"
},
"details": "A maliciously constructed HTTP/2 request could cause mod_http2 in Apache HTTP Server 2.4.24, 2.4.25 to dereference a NULL pointer and crash the server process.",
"id": "GHSA-64wg-r59g-c9jm",
"modified": "2025-04-20T03:41:29Z",
"published": "2022-05-13T01:09:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7659"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2483"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E"
},
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"url": "https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e@%3Ccvs.httpd.apache.org%3E"
},
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"url": "https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E"
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},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201710-32"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20180601-0002"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT208221"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03908en_us"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/tns-2019-09"
},
{
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"url": "https://lists.apache.org/thread.html/1d0b746bbaa3a64890fcdab59ee9050aaa633b7143e7d412374e5a9a%40%3Cannounce.httpd.apache.org%3E"
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"url": "https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E"
},
{
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},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-3896"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99132"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038711"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-64X7-M7RH-9M83
Vulnerability from github – Published: 2025-06-17 21:32 – Updated: 2025-06-20 14:12Withdrawn Advisory
This advisory has been withdrawn because a website owner has to set CSS color values. The proof of concept doesn't demonstrate how a malicious user who is not the website owner can cause an application crash. This link has been maintained to preserve external references.
Original Description
A null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "microlight"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.0.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-45525"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2025-06-17T22:36:31Z",
"nvd_published_at": "2025-06-17T20:15:32Z",
"severity": "LOW"
},
"details": "## Withdrawn Advisory\nThis advisory has been withdrawn because a website owner has to set CSS color values. The proof of concept doesn\u0027t demonstrate how a malicious user who is not the website owner can cause an application crash. This link has been maintained to preserve external references.\n\n## Original Description\nA null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash.",
"id": "GHSA-64x7-m7rh-9m83",
"modified": "2025-06-20T14:12:44Z",
"published": "2025-06-17T21:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-45525"
},
{
"type": "WEB",
"url": "https://github.com/github/advisory-database/pull/5730"
},
{
"type": "WEB",
"url": "https://gist.github.com/Rootingg/843368931f70886bed3cf982f10a4424"
},
{
"type": "PACKAGE",
"url": "https://github.com/asvd/microlight"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "Withdrawn Advisory: microlight.js has a null pointer dereference vulnerability",
"withdrawn": "2025-06-18T18:46:37Z"
}
GHSA-6539-3M2G-57X4
Vulnerability from github – Published: 2023-03-01 15:30 – Updated: 2023-03-10 18:30libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input file.
{
"affected": [],
"aliases": [
"CVE-2023-24755"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-01T15:15:00Z",
"severity": "MODERATE"
},
"details": "libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the put_weighted_pred_8_fallback function at fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input file.",
"id": "GHSA-6539-3m2g-57x4",
"modified": "2023-03-10T18:30:21Z",
"published": "2023-03-01T15:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24755"
},
{
"type": "WEB",
"url": "https://github.com/strukturag/libde265/issues/384"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00004.html"
}
],
"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-6543-HMM7-9CV7
Vulnerability from github – Published: 2022-12-14 21:30 – Updated: 2022-12-16 21:30An issue was discovered in the Linux kernel through 5.16-rc6. free_charger_irq() in drivers/power/supply/wm8350_power.c lacks free of WM8350_IRQ_CHG_FAST_RDY, which is registered in wm8350_init_charger().
{
"affected": [],
"aliases": [
"CVE-2022-3111"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-14T21:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the Linux kernel through 5.16-rc6. free_charger_irq() in drivers/power/supply/wm8350_power.c lacks free of WM8350_IRQ_CHG_FAST_RDY, which is registered in wm8350_init_charger().",
"id": "GHSA-6543-hmm7-9cv7",
"modified": "2022-12-16T21:30:44Z",
"published": "2022-12-14T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3111"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2153059"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc2\u0026id=6dee930f6f6776d1e5a7edf542c6863b47d9f078"
}
],
"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-654P-55PP-9QJQ
Vulnerability from github – Published: 2022-05-13 01:05 – Updated: 2024-09-11 18:30libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c. For example, the jbig2dec utility will crash (segmentation fault) when parsing an invalid file.
{
"affected": [],
"aliases": [
"CVE-2017-9216"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-05-24T05:29:00Z",
"severity": "MODERATE"
},
"details": "libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c. For example, the jbig2dec utility will crash (segmentation fault) when parsing an invalid file.",
"id": "GHSA-654p-55pp-9qjq",
"modified": "2024-09-11T18:30:57Z",
"published": "2022-05-13T01:05:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9216"
},
{
"type": "WEB",
"url": "https://bugs.ghostscript.com/show_bug.cgi?id=697934"
},
{
"type": "WEB",
"url": "https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=3ebffb1d96ba0cacec23016eccb4047dab365853"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00023.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/98680"
}
],
"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-656F-MGF3-P7R2
Vulnerability from github – Published: 2026-05-27 12:31 – Updated: 2026-06-26 21:32In the Linux kernel, the following vulnerability has been resolved:
net/sched: taprio: fix NULL pointer dereference in class dump
When a TAPRIO child qdisc is deleted via RTM_DELQDISC, taprio_graft() is called with new == NULL and stores NULL into q->qdiscs[cl - 1]. Subsequent RTM_GETTCLASS dump operations walk all classes via taprio_walk() and call taprio_dump_class(), which calls taprio_leaf() returning the NULL pointer, then dereferences it to read child->handle, causing a kernel NULL pointer dereference.
The bug is reachable with namespace-scoped CAP_NET_ADMIN on any kernel with CONFIG_NET_SCH_TAPRIO enabled. On systems with unprivileged user namespaces enabled, an unprivileged local user can trigger a kernel panic by creating a taprio qdisc inside a new network namespace, grafting an explicit child qdisc, deleting it, and requesting a class dump. The RTM_GETTCLASS dump itself requires no capability.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] RIP: 0010:taprio_dump_class (net/sched/sch_taprio.c:2478) Call Trace: tc_fill_tclass (net/sched/sch_api.c:1966) qdisc_class_dump (net/sched/sch_api.c:2326) taprio_walk (net/sched/sch_taprio.c:2514) tc_dump_tclass_qdisc (net/sched/sch_api.c:2352) tc_dump_tclass_root (net/sched/sch_api.c:2370) tc_dump_tclass (net/sched/sch_api.c:2431) rtnl_dumpit (net/core/rtnetlink.c:6864) netlink_dump (net/netlink/af_netlink.c:2325) rtnetlink_rcv_msg (net/core/rtnetlink.c:6959) netlink_rcv_skb (net/netlink/af_netlink.c:2550)
Fix this by substituting &noop_qdisc when new is NULL in taprio_graft(), a common pattern used by other qdiscs (e.g., multiq_graft()) to ensure the q->qdiscs[] slots are never NULL. This makes control-plane dump paths safe without requiring individual NULL checks.
Since the data-plane paths (taprio_enqueue and taprio_dequeue_from_txq) previously had explicit NULL guards that would drop/skip the packet cleanly, update those checks to test for &noop_qdisc instead. Without this, packets would reach taprio_enqueue_one() which increments the root qdisc's qlen and backlog before calling the child's enqueue; noop_qdisc drops the packet but those counters are never rolled back, permanently inflating the root qdisc's statistics.
After this change old can be a valid qdisc, NULL, or &noop_qdisc. Only call qdisc_put(old) in the first case to avoid decreasing noop_qdisc's refcount, which was never increased.
{
"affected": [],
"aliases": [
"CVE-2026-45845"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T11:16:23Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: taprio: fix NULL pointer dereference in class dump\n\nWhen a TAPRIO child qdisc is deleted via RTM_DELQDISC, taprio_graft()\nis called with new == NULL and stores NULL into q-\u003eqdiscs[cl - 1].\nSubsequent RTM_GETTCLASS dump operations walk all classes via\ntaprio_walk() and call taprio_dump_class(), which calls taprio_leaf()\nreturning the NULL pointer, then dereferences it to read child-\u003ehandle,\ncausing a kernel NULL pointer dereference.\n\nThe bug is reachable with namespace-scoped CAP_NET_ADMIN on any kernel\nwith CONFIG_NET_SCH_TAPRIO enabled. On systems with unprivileged user\nnamespaces enabled, an unprivileged local user can trigger a kernel\npanic by creating a taprio qdisc inside a new network namespace,\ngrafting an explicit child qdisc, deleting it, and requesting a class\ndump. The RTM_GETTCLASS dump itself requires no capability.\n\n Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] SMP KASAN NOPTI\n KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]\n RIP: 0010:taprio_dump_class (net/sched/sch_taprio.c:2478)\n Call Trace:\n \u003cTASK\u003e\n tc_fill_tclass (net/sched/sch_api.c:1966)\n qdisc_class_dump (net/sched/sch_api.c:2326)\n taprio_walk (net/sched/sch_taprio.c:2514)\n tc_dump_tclass_qdisc (net/sched/sch_api.c:2352)\n tc_dump_tclass_root (net/sched/sch_api.c:2370)\n tc_dump_tclass (net/sched/sch_api.c:2431)\n rtnl_dumpit (net/core/rtnetlink.c:6864)\n netlink_dump (net/netlink/af_netlink.c:2325)\n rtnetlink_rcv_msg (net/core/rtnetlink.c:6959)\n netlink_rcv_skb (net/netlink/af_netlink.c:2550)\n \u003c/TASK\u003e\n\nFix this by substituting \u0026noop_qdisc when new is NULL in\ntaprio_graft(), a common pattern used by other qdiscs (e.g.,\nmultiq_graft()) to ensure the q-\u003eqdiscs[] slots are never NULL.\nThis makes control-plane dump paths safe without requiring individual\nNULL checks.\n\nSince the data-plane paths (taprio_enqueue and taprio_dequeue_from_txq)\npreviously had explicit NULL guards that would drop/skip the packet\ncleanly, update those checks to test for \u0026noop_qdisc instead. Without\nthis, packets would reach taprio_enqueue_one() which increments the root\nqdisc\u0027s qlen and backlog before calling the child\u0027s enqueue; noop_qdisc\ndrops the packet but those counters are never rolled back, permanently\ninflating the root qdisc\u0027s statistics.\n\nAfter this change *old can be a valid qdisc, NULL, or \u0026noop_qdisc.\nOnly call qdisc_put(*old) in the first case to avoid decreasing\nnoop_qdisc\u0027s refcount, which was never increased.",
"id": "GHSA-656f-mgf3-p7r2",
"modified": "2026-06-26T21:32:05Z",
"published": "2026-05-27T12:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45845"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d07ca5c0fae311226f737963984bd94bb159a87"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/48b26d48e76221dc90b02bf5428bab53643461ca"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8f1ff8866cb9f655e5faea6994eb902960be8e04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d02e2fbf60de46678e2ea698a6a904fd21e1cc31"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ec2501e361b08b50bcb1e7b3253fc861abbda28d"
}
],
"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-656H-33VG-5H9X
Vulnerability from github – Published: 2025-07-03 09:30 – Updated: 2025-12-17 18:31In the Linux kernel, the following vulnerability has been resolved:
ACPI: CPPC: Fix NULL pointer dereference when nosmp is used
With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic.
Panic backtrace:
[ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init!
[ rjw: New subject ]
{
"affected": [],
"aliases": [
"CVE-2025-38113"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-03T09:15:25Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Fix NULL pointer dereference when nosmp is used\n\nWith nosmp in cmdline, other CPUs are not brought up, leaving\ntheir cpc_desc_ptr NULL. CPU0\u0027s iteration via for_each_possible_cpu()\ndereferences these NULL pointers, causing panic.\n\nPanic backtrace:\n\n[ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8\n...\n[ 0.403255] [\u003cffffffff809a5818\u003e] cppc_allow_fast_switch+0x6a/0xd4\n...\nKernel panic - not syncing: Attempted to kill init!\n\n[ rjw: New subject ]",
"id": "GHSA-656h-33vg-5h9x",
"modified": "2025-12-17T18:31:31Z",
"published": "2025-07-03T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38113"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"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-6574-PRF4-F84H
Vulnerability from github – Published: 2022-05-14 01:54 – Updated: 2022-05-14 01:54The function DCTStream::readScan in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.
{
"affected": [],
"aliases": [
"CVE-2018-18457"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-18T06:29:00Z",
"severity": "MODERATE"
},
"details": "The function DCTStream::readScan in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.",
"id": "GHSA-6574-prf4-f84h",
"modified": "2022-05-14T01:54:36Z",
"published": "2022-05-14T01:54:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18457"
},
{
"type": "WEB",
"url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41217"
},
{
"type": "WEB",
"url": "https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm"
}
],
"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-6578-54QH-W6G3
Vulnerability from github – Published: 2022-11-14 12:00 – Updated: 2025-05-01 15:31GNOME Nautilus 42.2 allows a NULL pointer dereference and get_basename application crash via a pasted ZIP archive.
{
"affected": [],
"aliases": [
"CVE-2022-37290"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-14T08:15:00Z",
"severity": "MODERATE"
},
"details": "GNOME Nautilus 42.2 allows a NULL pointer dereference and get_basename application crash via a pasted ZIP archive.",
"id": "GHSA-6578-54qh-w6g3",
"modified": "2025-05-01T15:31:31Z",
"published": "2022-11-14T12:00:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-37290"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/nautilus/-/issues/2376"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/nautilus/-/merge_requests/1001"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/nautilus/-/tree/master"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PX5CVF4FAHFA6UNKHFBBLOP2NUMIQJAY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XYPDZ7LBBUVU3WFK7DCGDFGK2GXTKGT5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PX5CVF4FAHFA6UNKHFBBLOP2NUMIQJAY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XYPDZ7LBBUVU3WFK7DCGDFGK2GXTKGT5"
}
],
"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-56
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.