CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6340 vulnerabilities reference this CWE, most recent first.
GHSA-3C6V-88WH-34PH
Vulnerability from github – Published: 2026-01-23 18:31 – Updated: 2026-02-26 21:31In the Linux kernel, the following vulnerability has been resolved:
net: do not write to msg_get_inq in callee
NULL pointer dereference fix.
msg_get_inq is an input field from caller to callee. Don't set it in the callee, as the caller may not clear it on struct reuse.
This is a kernel-internal variant of msghdr only, and the only user does reinitialize the field. So this is not critical for that reason. But it is more robust to avoid the write, and slightly simpler code. And it fixes a bug, see below.
Callers set msg_get_inq to request the input queue length to be returned in msg_inq. This is equivalent to but independent from the SO_INQ request to return that same info as a cmsg (tp->recvmsg_inq). To reduce branching in the hot path the second also sets the msg_inq. That is WAI.
This is a fix to commit 4d1442979e4a ("af_unix: don't post cmsg for SO_INQ unless explicitly asked for"), which fixed the inverse.
Also avoid NULL pointer dereference in unix_stream_read_generic if state->msg is NULL and msg->msg_get_inq is written. A NULL state->msg can happen when splicing as of commit 2b514574f7e8 ("net: af_unix: implement splice for stream af_unix sockets").
Also collapse two branches using a bitwise or.
{
"affected": [],
"aliases": [
"CVE-2026-22983"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T16:15:54Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: do not write to msg_get_inq in callee\n\nNULL pointer dereference fix.\n\nmsg_get_inq is an input field from caller to callee. Don\u0027t set it in\nthe callee, as the caller may not clear it on struct reuse.\n\nThis is a kernel-internal variant of msghdr only, and the only user\ndoes reinitialize the field. So this is not critical for that reason.\nBut it is more robust to avoid the write, and slightly simpler code.\nAnd it fixes a bug, see below.\n\nCallers set msg_get_inq to request the input queue length to be\nreturned in msg_inq. This is equivalent to but independent from the\nSO_INQ request to return that same info as a cmsg (tp-\u003erecvmsg_inq).\nTo reduce branching in the hot path the second also sets the msg_inq.\nThat is WAI.\n\nThis is a fix to commit 4d1442979e4a (\"af_unix: don\u0027t post cmsg for\nSO_INQ unless explicitly asked for\"), which fixed the inverse.\n\nAlso avoid NULL pointer dereference in unix_stream_read_generic if\nstate-\u003emsg is NULL and msg-\u003emsg_get_inq is written. A NULL state-\u003emsg\ncan happen when splicing as of commit 2b514574f7e8 (\"net: af_unix:\nimplement splice for stream af_unix sockets\").\n\nAlso collapse two branches using a bitwise or.",
"id": "GHSA-3c6v-88wh-34ph",
"modified": "2026-02-26T21:31:27Z",
"published": "2026-01-23T18:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22983"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d11e047eda5f98514ae62507065ac961981c025"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ffa2be496ef65055b28b39c6bd9a7d66943ee89a"
}
],
"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-3CFM-49VW-5QRV
Vulnerability from github – Published: 2024-01-15 12:30 – Updated: 2024-06-25 21:31A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.
{
"affected": [],
"aliases": [
"CVE-2023-6915"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-15T10:15:26Z",
"severity": "MODERATE"
},
"details": "A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.",
"id": "GHSA-3cfm-49vw-5qrv",
"modified": "2024-06-25T21:31:10Z",
"published": "2024-01-15T12:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6915"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:2394"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:2950"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:3138"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-6915"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254982"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
}
],
"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-3CG3-JW2V-VMVX
Vulnerability from github – Published: 2025-10-23 21:31 – Updated: 2025-10-23 21:31NVIDIA Display Driver for Linux contains a vulnerability in a kernel module, where an attacker might be able to trigger a null pointer deference. A successful exploit of this vulnerability might lead to denial of service.
{
"affected": [],
"aliases": [
"CVE-2025-23332"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-23T19:15:49Z",
"severity": "MODERATE"
},
"details": "NVIDIA Display Driver for Linux contains a vulnerability in a kernel module, where an attacker might be able to trigger a null pointer deference. A successful exploit of this vulnerability might lead to denial of service.",
"id": "GHSA-3cg3-jw2v-vmvx",
"modified": "2025-10-23T21:31:43Z",
"published": "2025-10-23T21:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23332"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5703"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23332"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3CJC-5649-5JCW
Vulnerability from github – Published: 2022-03-17 00:00 – Updated: 2022-03-23 00:00Adobe Premiere Pro 15.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service 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-2021-42264"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-16T15:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Premiere Pro 15.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service 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-3cjc-5649-5jcw",
"modified": "2022-03-23T00:00:31Z",
"published": "2022-03-17T00:00:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42264"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/premiere_pro/apsb21-100.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-3CJQ-W2M7-3294
Vulnerability from github – Published: 2025-07-09 12:31 – Updated: 2025-11-19 18:31In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix invalid inode pointer dereferences during log replay
In a few places where we call read_one_inode(), if we get a NULL pointer we end up jumping into an error path, or fallthrough in case of __add_inode_ref(), where we then do something like this:
iput(&inode->vfs_inode);
which results in an invalid inode pointer that triggers an invalid memory access, resulting in a crash.
Fix this by making sure we don't do such dereferences.
{
"affected": [],
"aliases": [
"CVE-2025-38243"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-09T11:15:26Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid inode pointer dereferences during log replay\n\nIn a few places where we call read_one_inode(), if we get a NULL pointer\nwe end up jumping into an error path, or fallthrough in case of\n__add_inode_ref(), where we then do something like this:\n\n iput(\u0026inode-\u003evfs_inode);\n\nwhich results in an invalid inode pointer that triggers an invalid memory\naccess, resulting in a crash.\n\nFix this by making sure we don\u0027t do such dereferences.",
"id": "GHSA-3cjq-w2m7-3294",
"modified": "2025-11-19T18:31:15Z",
"published": "2025-07-09T12:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38243"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf"
}
],
"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-3CQG-R9W7-GJFG
Vulnerability from github – Published: 2025-10-07 18:31 – Updated: 2026-02-03 21:31In the Linux kernel, the following vulnerability has been resolved:
ice: Don't tx before switchdev is fully configured
There is possibility that ice_eswitch_port_start_xmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if switchdev configuration was finished.
{
"affected": [],
"aliases": [
"CVE-2023-53657"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-07T16:15:49Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Don\u0027t tx before switchdev is fully configured\n\nThere is possibility that ice_eswitch_port_start_xmit might be\ncalled while some resources are still not allocated which might\ncause NULL pointer dereference. Fix this by checking if switchdev\nconfiguration was finished.",
"id": "GHSA-3cqg-r9w7-gjfg",
"modified": "2026-02-03T21:31:46Z",
"published": "2025-10-07T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53657"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5760a72b3060150b587eff3e879648c7470efddd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/63ff5a94649837d980e3b9ef535c793ec8cb0ca7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7aa529a69e92b9aff585e569d5003f7c15d8d60b"
}
],
"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-3CRH-XXFM-7QQG
Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-21 18:33In the Linux kernel, the following vulnerability has been resolved:
scsi: hisi_sas: Fix NULL pointer exception during user_scan()
user_scan() invokes updated sas_user_scan() for channel 0, and if successful, iteratively scans remaining channels (1 to shost->max_channel) via scsi_scan_host_selected() in commit 37c4e72b0651 ("scsi: Fix sas_user_scan() to handle wildcard and multi-channel scans"). However, hisi_sas supports only one channel, and the current value of max_channel is 1. sas_user_scan() for channel 1 will trigger the following NULL pointer exception:
[ 441.554662] Unable to handle kernel NULL pointer dereference at virtual address 00000000000008b0 [ 441.554699] Mem abort info: [ 441.554710] ESR = 0x0000000096000004 [ 441.554718] EC = 0x25: DABT (current EL), IL = 32 bits [ 441.554723] SET = 0, FnV = 0 [ 441.554726] EA = 0, S1PTW = 0 [ 441.554730] FSC = 0x04: level 0 translation fault [ 441.554735] Data abort info: [ 441.554737] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 441.554742] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 441.554747] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 441.554752] user pgtable: 4k pages, 48-bit VAs, pgdp=00000828377a6000 [ 441.554757] [00000000000008b0] pgd=0000000000000000, p4d=0000000000000000 [ 441.554769] Internal error: Oops: 0000000096000004 [#1] SMP [ 441.629589] Modules linked in: arm_spe_pmu arm_smmuv3_pmu tpm_tis_spi hisi_uncore_sllc_pmu hisi_uncore_pa_pmu hisi_uncore_l3c_pmu hisi_uncore_hha_pmu hisi_uncore_ddrc_pmu hisi_uncore_cpa_pmu hns3_pmu hisi_ptt hisi_pcie_pmu tpm_tis_core spidev spi_hisi_sfc_v3xx hisi_uncore_pmu spi_dw_mmio fuse hclge hclge_common hisi_sec2 hisi_hpre hisi_zip hisi_qm hns3 hisi_sas_v3_hw sm3_ce sbsa_gwdt hnae3 hisi_sas_main uacce hisi_dma i2c_hisi dm_mirror dm_region_hash dm_log dm_mod [ 441.670819] CPU: 46 UID: 0 PID: 6994 Comm: bash Kdump: loaded Not tainted 7.0.0-rc2+ #84 PREEMPT [ 441.691327] pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 441.698277] pc : sas_find_dev_by_rphy+0x44/0x118 [ 441.702896] lr : sas_find_dev_by_rphy+0x3c/0x118 [ 441.707502] sp : ffff80009abbba40 [ 441.710805] x29: ffff80009abbba40 x28: ffff082819a40008 x27: ffff082810c37c08 [ 441.717930] x26: ffff082810c37c28 x25: ffff082819a40290 x24: ffff082810c37c00 [ 441.725054] x23: 0000000000000000 x22: 0000000000000001 x21: ffff082819a40000 [ 441.732179] x20: ffff082819a40290 x19: 0000000000000000 x18: 0000000000000020 [ 441.739304] x17: 0000000000000000 x16: ffffb5dad6bda690 x15: 00000000ffffffff [ 441.746428] x14: ffff082814c3b26c x13: 00000000ffffffff x12: ffff082814c3b26a [ 441.753553] x11: 00000000000000c0 x10: 000000000000003a x9 : ffffb5dad5ea94f4 [ 441.760678] x8 : 000000000000003a x7 : ffff80009abbbab0 x6 : 0000000000000030 [ 441.767802] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 441.774926] x2 : ffff08280f35a300 x1 : ffffb5dad7127180 x0 : 0000000000000000 [ 441.782053] Call trace: [ 441.784488] sas_find_dev_by_rphy+0x44/0x118 (P) [ 441.789095] sas_target_alloc+0x24/0xb0 [ 441.792920] scsi_alloc_target+0x290/0x330 [ 441.797010] __scsi_scan_target+0x88/0x258 [ 441.801096] scsi_scan_channel+0x74/0xb8 [ 441.805008] scsi_scan_host_selected+0x170/0x188 [ 441.809615] sas_user_scan+0xfc/0x148 [ 441.813267] store_scan+0x10c/0x180 [ 441.816743] dev_attr_store+0x20/0x40 [ 441.820398] sysfs_kf_write+0x84/0xa8 [ 441.824054] kernfs_fop_write_iter+0x130/0x1c8 [ 441.828487] vfs_write+0x2c0/0x370 [ 441.831880] ksys_write+0x74/0x118 [ 441.835271] __arm64_sys_write+0x24/0x38 [ 441.839182] invoke_syscall+0x50/0x120 [ 441.842919] el0_svc_common.constprop.0+0xc8/0xf0 [ 441.847611] do_el0_svc+0x24/0x38 [ 441.850913] el0_svc+0x38/0x158 [ 441.854043] el0t_64_sync_handler+0xa0/0xe8 [ 441.858214] el0t_64_sync+0x1ac/0x1b0 [ 441.861865] Code: aa1303e0 97ff70a8 34ffff80 d10a4273 (f9445a75) [ 441.867946] ---[ end trace 0000000000000000 ]---
Therefore ---truncated---
{
"affected": [],
"aliases": [
"CVE-2026-43413"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-08T15:16:53Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: hisi_sas: Fix NULL pointer exception during user_scan()\n\nuser_scan() invokes updated sas_user_scan() for channel 0, and if\nsuccessful, iteratively scans remaining channels (1 to shost-\u003emax_channel)\nvia scsi_scan_host_selected() in commit 37c4e72b0651 (\"scsi: Fix\nsas_user_scan() to handle wildcard and multi-channel scans\"). However,\nhisi_sas supports only one channel, and the current value of max_channel is\n1. sas_user_scan() for channel 1 will trigger the following NULL pointer\nexception:\n\n[ 441.554662] Unable to handle kernel NULL pointer dereference at virtual address 00000000000008b0\n[ 441.554699] Mem abort info:\n[ 441.554710] ESR = 0x0000000096000004\n[ 441.554718] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 441.554723] SET = 0, FnV = 0\n[ 441.554726] EA = 0, S1PTW = 0\n[ 441.554730] FSC = 0x04: level 0 translation fault\n[ 441.554735] Data abort info:\n[ 441.554737] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[ 441.554742] CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[ 441.554747] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 441.554752] user pgtable: 4k pages, 48-bit VAs, pgdp=00000828377a6000\n[ 441.554757] [00000000000008b0] pgd=0000000000000000, p4d=0000000000000000\n[ 441.554769] Internal error: Oops: 0000000096000004 [#1] SMP\n[ 441.629589] Modules linked in: arm_spe_pmu arm_smmuv3_pmu tpm_tis_spi hisi_uncore_sllc_pmu hisi_uncore_pa_pmu hisi_uncore_l3c_pmu hisi_uncore_hha_pmu hisi_uncore_ddrc_pmu hisi_uncore_cpa_pmu hns3_pmu hisi_ptt hisi_pcie_pmu tpm_tis_core spidev spi_hisi_sfc_v3xx hisi_uncore_pmu spi_dw_mmio fuse hclge hclge_common hisi_sec2 hisi_hpre hisi_zip hisi_qm hns3 hisi_sas_v3_hw sm3_ce sbsa_gwdt hnae3 hisi_sas_main uacce hisi_dma i2c_hisi dm_mirror dm_region_hash dm_log dm_mod\n[ 441.670819] CPU: 46 UID: 0 PID: 6994 Comm: bash Kdump: loaded Not tainted 7.0.0-rc2+ #84 PREEMPT\n[ 441.691327] pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[ 441.698277] pc : sas_find_dev_by_rphy+0x44/0x118\n[ 441.702896] lr : sas_find_dev_by_rphy+0x3c/0x118\n[ 441.707502] sp : ffff80009abbba40\n[ 441.710805] x29: ffff80009abbba40 x28: ffff082819a40008 x27: ffff082810c37c08\n[ 441.717930] x26: ffff082810c37c28 x25: ffff082819a40290 x24: ffff082810c37c00\n[ 441.725054] x23: 0000000000000000 x22: 0000000000000001 x21: ffff082819a40000\n[ 441.732179] x20: ffff082819a40290 x19: 0000000000000000 x18: 0000000000000020\n[ 441.739304] x17: 0000000000000000 x16: ffffb5dad6bda690 x15: 00000000ffffffff\n[ 441.746428] x14: ffff082814c3b26c x13: 00000000ffffffff x12: ffff082814c3b26a\n[ 441.753553] x11: 00000000000000c0 x10: 000000000000003a x9 : ffffb5dad5ea94f4\n[ 441.760678] x8 : 000000000000003a x7 : ffff80009abbbab0 x6 : 0000000000000030\n[ 441.767802] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[ 441.774926] x2 : ffff08280f35a300 x1 : ffffb5dad7127180 x0 : 0000000000000000\n[ 441.782053] Call trace:\n[ 441.784488] sas_find_dev_by_rphy+0x44/0x118 (P)\n[ 441.789095] sas_target_alloc+0x24/0xb0\n[ 441.792920] scsi_alloc_target+0x290/0x330\n[ 441.797010] __scsi_scan_target+0x88/0x258\n[ 441.801096] scsi_scan_channel+0x74/0xb8\n[ 441.805008] scsi_scan_host_selected+0x170/0x188\n[ 441.809615] sas_user_scan+0xfc/0x148\n[ 441.813267] store_scan+0x10c/0x180\n[ 441.816743] dev_attr_store+0x20/0x40\n[ 441.820398] sysfs_kf_write+0x84/0xa8\n[ 441.824054] kernfs_fop_write_iter+0x130/0x1c8\n[ 441.828487] vfs_write+0x2c0/0x370\n[ 441.831880] ksys_write+0x74/0x118\n[ 441.835271] __arm64_sys_write+0x24/0x38\n[ 441.839182] invoke_syscall+0x50/0x120\n[ 441.842919] el0_svc_common.constprop.0+0xc8/0xf0\n[ 441.847611] do_el0_svc+0x24/0x38\n[ 441.850913] el0_svc+0x38/0x158\n[ 441.854043] el0t_64_sync_handler+0xa0/0xe8\n[ 441.858214] el0t_64_sync+0x1ac/0x1b0\n[ 441.861865] Code: aa1303e0 97ff70a8 34ffff80 d10a4273 (f9445a75)\n[ 441.867946] ---[ end trace 0000000000000000 ]---\n\nTherefore\n---truncated---",
"id": "GHSA-3crh-xxfm-7qqg",
"modified": "2026-05-21T18:33:06Z",
"published": "2026-05-08T15:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43413"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/21a13db8d449b9c7eda4471da7f12417602dbbc7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/40119a21d9769bf8fdab5c93c6c878296e628abf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70c78429ef383e35f9c58848994aeeac8083ae35"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8ddc0c26916574395447ebf4cff684314f6873a9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/beadac156610a4f3bb15cb7bb4b07b6ac06f6567"
}
],
"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-3CVR-Q9WG-JWQW
Vulnerability from github – Published: 2022-05-24 17:18 – Updated: 2022-11-16 12:00address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.
{
"affected": [],
"aliases": [
"CVE-2020-13659"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-06-02T13:15:00Z",
"severity": "MODERATE"
},
"details": "address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.",
"id": "GHSA-3cvr-q9wg-jwqw",
"modified": "2022-11-16T12:00:19Z",
"published": "2022-05-24T17:18:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13659"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg07313.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202011-09"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200608-0007"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4467-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4728"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2020/06/01/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-3F4Q-435V-WXFP
Vulnerability from github – Published: 2022-09-15 00:00 – Updated: 2022-09-17 00:00A NULL pointer dereference flaw in diFree in fs/jfs/inode.c in Journaled File System (JFS)in the Linux kernel. This could allow a local attacker to crash the system or leak kernel internal information.
{
"affected": [],
"aliases": [
"CVE-2022-3202"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-14T15:15:00Z",
"severity": "HIGH"
},
"details": "A NULL pointer dereference flaw in diFree in fs/jfs/inode.c in Journaled File System (JFS)in the Linux kernel. This could allow a local attacker to crash the system or leak kernel internal information.",
"id": "GHSA-3f4q-435v-wxfp",
"modified": "2022-09-17T00:00:31Z",
"published": "2022-09-15T00:00:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3202"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/a53046291020ec41e09181396c1e829287b48d47"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20221228-0007"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3F55-WWXJ-X5JC
Vulnerability from github – Published: 2022-05-24 19:16 – Updated: 2022-05-24 19:16Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An authenticated attacker could leverage this vulnerability to achieve an application denial-of-service 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-2021-39851"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-29T16:15:00Z",
"severity": "MODERATE"
},
"details": "Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An authenticated attacker could leverage this vulnerability to achieve an application denial-of-service 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-3f55-wwxj-x5jc",
"modified": "2022-05-24T19:16:05Z",
"published": "2022-05-24T19:16:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39851"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.