CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6350 vulnerabilities reference this CWE, most recent first.
GHSA-4WPF-X7JV-XGQJ
Vulnerability from github – Published: 2025-09-16 18:31 – Updated: 2025-12-10 21:31In the Linux kernel, the following vulnerability has been resolved:
genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()
If ipi_send_{mask|single}() is called with an invalid interrupt number, all the local variables there will be NULL. ipi_send_verify() which is invoked from these functions does verify its 'data' parameter, resulting in a kernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets dereferenced.
Add a missing NULL pointer check in ipi_send_verify()...
Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
{
"affected": [],
"aliases": [
"CVE-2023-53332"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-16T17:15:39Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()\n\nIf ipi_send_{mask|single}() is called with an invalid interrupt number, all\nthe local variables there will be NULL. ipi_send_verify() which is invoked\nfrom these functions does verify its \u0027data\u0027 parameter, resulting in a\nkernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets\ndereferenced.\n\nAdd a missing NULL pointer check in ipi_send_verify()...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.",
"id": "GHSA-4wpf-x7jv-xgqj",
"modified": "2025-12-10T21:31:29Z",
"published": "2025-09-16T18:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53332"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7448c73d64075051f50caed2c62f46553b69ab8a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/926aef60ea64cd9becf2829f7388f48dbe8bcb11"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/feabecaff5902f896531dde90646ca5dfa9d4f7d"
}
],
"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-4WXP-P2XQ-9854
Vulnerability from github – Published: 2026-06-09 21:32 – Updated: 2026-06-14 00:30A NULL pointer dereference in the gf_isom_get_user_data_count function (isomedia/isom_read.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
{
"affected": [],
"aliases": [
"CVE-2025-55651"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T19:17:31Z",
"severity": "MODERATE"
},
"details": "A NULL pointer dereference in the gf_isom_get_user_data_count function (isomedia/isom_read.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.",
"id": "GHSA-4wxp-p2xq-9854",
"modified": "2026-06-14T00:30:27Z",
"published": "2026-06-09T21:32:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55651"
},
{
"type": "WEB",
"url": "https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/4/4_poc.mp4"
},
{
"type": "WEB",
"url": "https://infosec.exchange/@sigdevel/116710512103919834"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/06/13/18"
}
],
"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-4X3F-8G5V-77FH
Vulnerability from github – Published: 2022-05-17 01:05 – Updated: 2025-04-20 03:44A NULL pointer dereference was discovered in sync_buffer in interface.c in mpglibDBL, as used in MP3Gain version 1.5.2. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of service.
{
"affected": [],
"aliases": [
"CVE-2017-14406"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-09-13T03:29:00Z",
"severity": "MODERATE"
},
"details": "A NULL pointer dereference was discovered in sync_buffer in interface.c in mpglibDBL, as used in MP3Gain version 1.5.2. The vulnerability causes a segmentation fault and application crash, which leads to remote denial of service.",
"id": "GHSA-4x3f-8g5v-77fh",
"modified": "2025-04-20T03:44:52Z",
"published": "2022-05-17T01:05:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-14406"
},
{
"type": "WEB",
"url": "https://blogs.gentoo.org/ago/2017/09/08/mp3gain-null-pointer-dereference-in-sync_buffer-mpglibdblinterface-c"
}
],
"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-4X3R-CWRJ-V74H
Vulnerability from github – Published: 2022-05-17 02:30 – Updated: 2022-05-17 02:30An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "IOFireWireFamily" component. It allows attackers to cause a denial of service (NULL pointer dereference) via a crafted app.
{
"affected": [],
"aliases": [
"CVE-2017-2388"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-04-02T01:59:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the \"IOFireWireFamily\" component. It allows attackers to cause a denial of service (NULL pointer dereference) via a crafted app.",
"id": "GHSA-4x3r-cwrj-v74h",
"modified": "2022-05-17T02:30:41Z",
"published": "2022-05-17T02:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2388"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207615"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97140"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038138"
}
],
"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-4X4Q-M68V-2CWQ
Vulnerability from github – Published: 2025-09-17 15:30 – Updated: 2025-12-11 15:30In the Linux kernel, the following vulnerability has been resolved:
drm/ttm: check null pointer before accessing when swapping
Add a check to avoid null pointer dereference as below:
[ 90.002283] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 90.002292] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 90.002346] ? exc_general_protection+0x159/0x240 [ 90.002352] ? asm_exc_general_protection+0x26/0x30 [ 90.002357] ? ttm_bo_evict_swapout_allowable+0x322/0x5e0 [ttm] [ 90.002365] ? ttm_bo_evict_swapout_allowable+0x42e/0x5e0 [ttm] [ 90.002373] ttm_bo_swapout+0x134/0x7f0 [ttm] [ 90.002383] ? __pfx_ttm_bo_swapout+0x10/0x10 [ttm] [ 90.002391] ? lock_acquire+0x44d/0x4f0 [ 90.002398] ? ttm_device_swapout+0xa5/0x260 [ttm] [ 90.002412] ? lock_acquired+0x355/0xa00 [ 90.002416] ? do_raw_spin_trylock+0xb6/0x190 [ 90.002421] ? __pfx_lock_acquired+0x10/0x10 [ 90.002426] ? ttm_global_swapout+0x25/0x210 [ttm] [ 90.002442] ttm_device_swapout+0x198/0x260 [ttm] [ 90.002456] ? __pfx_ttm_device_swapout+0x10/0x10 [ttm] [ 90.002472] ttm_global_swapout+0x75/0x210 [ttm] [ 90.002486] ttm_tt_populate+0x187/0x3f0 [ttm] [ 90.002501] ttm_bo_handle_move_mem+0x437/0x590 [ttm] [ 90.002517] ttm_bo_validate+0x275/0x430 [ttm] [ 90.002530] ? __pfx_ttm_bo_validate+0x10/0x10 [ttm] [ 90.002544] ? kasan_save_stack+0x33/0x60 [ 90.002550] ? kasan_set_track+0x25/0x30 [ 90.002554] ? __kasan_kmalloc+0x8f/0xa0 [ 90.002558] ? amdgpu_gtt_mgr_new+0x81/0x420 [amdgpu] [ 90.003023] ? ttm_resource_alloc+0xf6/0x220 [ttm] [ 90.003038] amdgpu_bo_pin_restricted+0x2dd/0x8b0 [amdgpu] [ 90.003210] ? __x64_sys_ioctl+0x131/0x1a0 [ 90.003210] ? do_syscall_64+0x60/0x90
{
"affected": [],
"aliases": [
"CVE-2023-53352"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-17T15:15:39Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: check null pointer before accessing when swapping\n\nAdd a check to avoid null pointer dereference as below:\n\n[ 90.002283] general protection fault, probably for non-canonical\naddress 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI\n[ 90.002292] KASAN: null-ptr-deref in range\n[0x0000000000000000-0x0000000000000007]\n[ 90.002346] ? exc_general_protection+0x159/0x240\n[ 90.002352] ? asm_exc_general_protection+0x26/0x30\n[ 90.002357] ? ttm_bo_evict_swapout_allowable+0x322/0x5e0 [ttm]\n[ 90.002365] ? ttm_bo_evict_swapout_allowable+0x42e/0x5e0 [ttm]\n[ 90.002373] ttm_bo_swapout+0x134/0x7f0 [ttm]\n[ 90.002383] ? __pfx_ttm_bo_swapout+0x10/0x10 [ttm]\n[ 90.002391] ? lock_acquire+0x44d/0x4f0\n[ 90.002398] ? ttm_device_swapout+0xa5/0x260 [ttm]\n[ 90.002412] ? lock_acquired+0x355/0xa00\n[ 90.002416] ? do_raw_spin_trylock+0xb6/0x190\n[ 90.002421] ? __pfx_lock_acquired+0x10/0x10\n[ 90.002426] ? ttm_global_swapout+0x25/0x210 [ttm]\n[ 90.002442] ttm_device_swapout+0x198/0x260 [ttm]\n[ 90.002456] ? __pfx_ttm_device_swapout+0x10/0x10 [ttm]\n[ 90.002472] ttm_global_swapout+0x75/0x210 [ttm]\n[ 90.002486] ttm_tt_populate+0x187/0x3f0 [ttm]\n[ 90.002501] ttm_bo_handle_move_mem+0x437/0x590 [ttm]\n[ 90.002517] ttm_bo_validate+0x275/0x430 [ttm]\n[ 90.002530] ? __pfx_ttm_bo_validate+0x10/0x10 [ttm]\n[ 90.002544] ? kasan_save_stack+0x33/0x60\n[ 90.002550] ? kasan_set_track+0x25/0x30\n[ 90.002554] ? __kasan_kmalloc+0x8f/0xa0\n[ 90.002558] ? amdgpu_gtt_mgr_new+0x81/0x420 [amdgpu]\n[ 90.003023] ? ttm_resource_alloc+0xf6/0x220 [ttm]\n[ 90.003038] amdgpu_bo_pin_restricted+0x2dd/0x8b0 [amdgpu]\n[ 90.003210] ? __x64_sys_ioctl+0x131/0x1a0\n[ 90.003210] ? do_syscall_64+0x60/0x90",
"id": "GHSA-4x4q-m68v-2cwq",
"modified": "2025-12-11T15:30:30Z",
"published": "2025-09-17T15:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53352"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1fdd16d89c01336d9a942b5f03673c17d401da87"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2dedcf414bb01b8d966eb445db1d181d92304fb2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/49b3b979e79faef129605018ad82aa0f2258f2f7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8089eb93d6787dbf348863e935698b4610d90321"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d39971d902d067b4dc366981b75b17c8c57ed5d1"
}
],
"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-4X55-VRFR-PM6M
Vulnerability from github – Published: 2022-09-02 00:01 – Updated: 2022-09-08 00:00An issue was discovered in the Linux kernel through 5.16-rc6. There is a lack of check after calling vzalloc() and lack of free after allocation in drivers/media/test-drivers/vidtv/vidtv_s302m.c.
{
"affected": [],
"aliases": [
"CVE-2022-3078"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-01T21:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the Linux kernel through 5.16-rc6. There is a lack of check after calling vzalloc() and lack of free after allocation in drivers/media/test-drivers/vidtv/vidtv_s302m.c.",
"id": "GHSA-4x55-vrfr-pm6m",
"modified": "2022-09-08T00:00:33Z",
"published": "2022-09-02T00:01:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3078"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc2\u0026id=e6a21a14106d9718aa4f8e115b1e474888eeba44"
}
],
"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-4X74-8Q36-FC3H
Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2026-05-12 12:32In the Linux kernel, the following vulnerability has been resolved:
net: avoid potential underflow in qdisc_pkt_len_init() with UFO
After commit 7c6d2ecbda83 ("net: be more gentle about silly gso requests coming from user") virtio_net_hdr_to_skb() had sanity check to detect malicious attempts from user space to cook a bad GSO packet.
Then commit cf9acc90c80ec ("net: virtio_net_hdr_to_skb: count transport header in UFO") while fixing one issue, allowed user space to cook a GSO packet with the following characteristic :
IPv4 SKB_GSO_UDP, gso_size=3, skb->len = 28.
When this packet arrives in qdisc_pkt_len_init(), we end up with hdr_len = 28 (IPv4 header + UDP header), matching skb->len
Then the following sets gso_segs to 0 :
gso_segs = DIV_ROUND_UP(skb->len - hdr_len, shinfo->gso_size);
Then later we set qdisc_skb_cb(skb)->pkt_len to back to zero :/
qdisc_skb_cb(skb)->pkt_len += (gso_segs - 1) * hdr_len;
This leads to the following crash in fq_codel [1]
qdisc_pkt_len_init() is best effort, we only want an estimation of the bytes sent on the wire, not crashing the kernel.
This patch is fixing this particular issue, a following one adds more sanity checks for another potential bug.
[1] [ 70.724101] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.724561] #PF: supervisor read access in kernel mode [ 70.724561] #PF: error_code(0x0000) - not-present page [ 70.724561] PGD 10ac61067 P4D 10ac61067 PUD 107ee2067 PMD 0 [ 70.724561] Oops: Oops: 0000 [#1] SMP NOPTI [ 70.724561] CPU: 11 UID: 0 PID: 2163 Comm: b358537762 Not tainted 6.11.0-virtme #991 [ 70.724561] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 70.724561] RIP: 0010:fq_codel_enqueue (net/sched/sch_fq_codel.c:120 net/sched/sch_fq_codel.c:168 net/sched/sch_fq_codel.c:230) sch_fq_codel [ 70.724561] Code: 24 08 49 c1 e1 06 44 89 7c 24 18 45 31 ed 45 31 c0 31 ff 89 44 24 14 4c 03 8b 90 01 00 00 eb 04 39 ca 73 37 4d 8b 39 83 c7 01 <49> 8b 17 49 89 11 41 8b 57 28 45 8b 5f 34 49 c7 07 00 00 00 00 49 All code ======== 0: 24 08 and $0x8,%al 2: 49 c1 e1 06 shl $0x6,%r9 6: 44 89 7c 24 18 mov %r15d,0x18(%rsp) b: 45 31 ed xor %r13d,%r13d e: 45 31 c0 xor %r8d,%r8d 11: 31 ff xor %edi,%edi 13: 89 44 24 14 mov %eax,0x14(%rsp) 17: 4c 03 8b 90 01 00 00 add 0x190(%rbx),%r9 1e: eb 04 jmp 0x24 20: 39 ca cmp %ecx,%edx 22: 73 37 jae 0x5b 24: 4d 8b 39 mov (%r9),%r15 27: 83 c7 01 add $0x1,%edi 2a:* 49 8b 17 mov (%r15),%rdx <-- trapping instruction 2d: 49 89 11 mov %rdx,(%r9) 30: 41 8b 57 28 mov 0x28(%r15),%edx 34: 45 8b 5f 34 mov 0x34(%r15),%r11d 38: 49 c7 07 00 00 00 00 movq $0x0,(%r15) 3f: 49 rex.WB
Code starting with the faulting instruction
0: 49 8b 17 mov (%r15),%rdx 3: 49 89 11 mov %rdx,(%r9) 6: 41 8b 57 28 mov 0x28(%r15),%edx a: 45 8b 5f 34 mov 0x34(%r15),%r11d e: 49 c7 07 00 00 00 00 movq $0x0,(%r15) 15: 49 rex.WB [ 70.724561] RSP: 0018:ffff95ae85e6fb90 EFLAGS: 00000202 [ 70.724561] RAX: 0000000002000000 RBX: ffff95ae841de000 RCX: 0000000000000000 [ 70.724561] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 70.724561] RBP: ffff95ae85e6fbf8 R08: 0000000000000000 R09: ffff95b710a30000 [ 70.724561] R10: 0000000000000000 R11: bdf289445ce31881 R12: ffff95ae85e6fc58 [ 70.724561] R13: 0000000000000000 R14: 0000000000000040 R15: 0000000000000000 [ 70.724561] FS: 000000002c5c1380(0000) GS:ffff95bd7fcc0000(0000) knlGS:0000000000000000 [ 70.724561] CS: 0010 DS: 0000 ES: 0000 C ---truncated---
{
"affected": [],
"aliases": [
"CVE-2024-49949"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T18:15:16Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: avoid potential underflow in qdisc_pkt_len_init() with UFO\n\nAfter commit 7c6d2ecbda83 (\"net: be more gentle about silly gso\nrequests coming from user\") virtio_net_hdr_to_skb() had sanity check\nto detect malicious attempts from user space to cook a bad GSO packet.\n\nThen commit cf9acc90c80ec (\"net: virtio_net_hdr_to_skb: count\ntransport header in UFO\") while fixing one issue, allowed user space\nto cook a GSO packet with the following characteristic :\n\nIPv4 SKB_GSO_UDP, gso_size=3, skb-\u003elen = 28.\n\nWhen this packet arrives in qdisc_pkt_len_init(), we end up\nwith hdr_len = 28 (IPv4 header + UDP header), matching skb-\u003elen\n\nThen the following sets gso_segs to 0 :\n\ngso_segs = DIV_ROUND_UP(skb-\u003elen - hdr_len,\n shinfo-\u003egso_size);\n\nThen later we set qdisc_skb_cb(skb)-\u003epkt_len to back to zero :/\n\nqdisc_skb_cb(skb)-\u003epkt_len += (gso_segs - 1) * hdr_len;\n\nThis leads to the following crash in fq_codel [1]\n\nqdisc_pkt_len_init() is best effort, we only want an estimation\nof the bytes sent on the wire, not crashing the kernel.\n\nThis patch is fixing this particular issue, a following one\nadds more sanity checks for another potential bug.\n\n[1]\n[ 70.724101] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 70.724561] #PF: supervisor read access in kernel mode\n[ 70.724561] #PF: error_code(0x0000) - not-present page\n[ 70.724561] PGD 10ac61067 P4D 10ac61067 PUD 107ee2067 PMD 0\n[ 70.724561] Oops: Oops: 0000 [#1] SMP NOPTI\n[ 70.724561] CPU: 11 UID: 0 PID: 2163 Comm: b358537762 Not tainted 6.11.0-virtme #991\n[ 70.724561] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[ 70.724561] RIP: 0010:fq_codel_enqueue (net/sched/sch_fq_codel.c:120 net/sched/sch_fq_codel.c:168 net/sched/sch_fq_codel.c:230) sch_fq_codel\n[ 70.724561] Code: 24 08 49 c1 e1 06 44 89 7c 24 18 45 31 ed 45 31 c0 31 ff 89 44 24 14 4c 03 8b 90 01 00 00 eb 04 39 ca 73 37 4d 8b 39 83 c7 01 \u003c49\u003e 8b 17 49 89 11 41 8b 57 28 45 8b 5f 34 49 c7 07 00 00 00 00 49\nAll code\n========\n 0:\t24 08 \tand $0x8,%al\n 2:\t49 c1 e1 06 \tshl $0x6,%r9\n 6:\t44 89 7c 24 18 \tmov %r15d,0x18(%rsp)\n b:\t45 31 ed \txor %r13d,%r13d\n e:\t45 31 c0 \txor %r8d,%r8d\n 11:\t31 ff \txor %edi,%edi\n 13:\t89 44 24 14 \tmov %eax,0x14(%rsp)\n 17:\t4c 03 8b 90 01 00 00 \tadd 0x190(%rbx),%r9\n 1e:\teb 04 \tjmp 0x24\n 20:\t39 ca \tcmp %ecx,%edx\n 22:\t73 37 \tjae 0x5b\n 24:\t4d 8b 39 \tmov (%r9),%r15\n 27:\t83 c7 01 \tadd $0x1,%edi\n 2a:*\t49 8b 17 \tmov (%r15),%rdx\t\t\u003c-- trapping instruction\n 2d:\t49 89 11 \tmov %rdx,(%r9)\n 30:\t41 8b 57 28 \tmov 0x28(%r15),%edx\n 34:\t45 8b 5f 34 \tmov 0x34(%r15),%r11d\n 38:\t49 c7 07 00 00 00 00 \tmovq $0x0,(%r15)\n 3f:\t49 \trex.WB\n\nCode starting with the faulting instruction\n===========================================\n 0:\t49 8b 17 \tmov (%r15),%rdx\n 3:\t49 89 11 \tmov %rdx,(%r9)\n 6:\t41 8b 57 28 \tmov 0x28(%r15),%edx\n a:\t45 8b 5f 34 \tmov 0x34(%r15),%r11d\n e:\t49 c7 07 00 00 00 00 \tmovq $0x0,(%r15)\n 15:\t49 \trex.WB\n[ 70.724561] RSP: 0018:ffff95ae85e6fb90 EFLAGS: 00000202\n[ 70.724561] RAX: 0000000002000000 RBX: ffff95ae841de000 RCX: 0000000000000000\n[ 70.724561] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001\n[ 70.724561] RBP: ffff95ae85e6fbf8 R08: 0000000000000000 R09: ffff95b710a30000\n[ 70.724561] R10: 0000000000000000 R11: bdf289445ce31881 R12: ffff95ae85e6fc58\n[ 70.724561] R13: 0000000000000000 R14: 0000000000000040 R15: 0000000000000000\n[ 70.724561] FS: 000000002c5c1380(0000) GS:ffff95bd7fcc0000(0000) knlGS:0000000000000000\n[ 70.724561] CS: 0010 DS: 0000 ES: 0000 C\n---truncated---",
"id": "GHSA-4x74-8q36-fc3h",
"modified": "2026-05-12T12:32:11Z",
"published": "2024-10-21T18:30:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49949"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1598d70ad9c7d0a4d9d54b82094e9f45908fda6d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/25ab0b87dbd89cecef8a9c60a02bb97832e471d1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81fd007dcd47c34471766249853e4d4bce8eea4b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/939c88cbdc668dadd8cfa7a35d9066331239041c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba26060a29d3ca1bfc737aa79f7125128f35147c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c20029db28399ecc50e556964eaba75c43b1e2f1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6114993e0a89fde84a60a60a8329a571580b174"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d70ca7598943572d5e384227bd268acb5109bf72"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f959cce8a2a04ce776aa8b78e83ce339e0d7fbac"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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-4X8R-3G8V-VVCH
Vulnerability from github – Published: 2021-12-22 00:00 – Updated: 2021-12-28 00:01A null pointer dereference vulnerability exists in gpac 1.1.0 in the gf_dump_vrml_dyn_field.isra function, which causes a segmentation fault and application crash.
{
"affected": [],
"aliases": [
"CVE-2021-44923"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-21T21:15:00Z",
"severity": "MODERATE"
},
"details": "A null pointer dereference vulnerability exists in gpac 1.1.0 in the gf_dump_vrml_dyn_field.isra function, which causes a segmentation fault and application crash.",
"id": "GHSA-4x8r-3g8v-vvch",
"modified": "2021-12-28T00:01:05Z",
"published": "2021-12-22T00:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44923"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/1962"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4X92-R8V7-J2M9
Vulnerability from github – Published: 2023-03-17 09:30 – Updated: 2023-03-23 18:30A vulnerability classified as problematic was found in Watchdog Anti-Virus 1.4.214.0. Affected by this vulnerability is an unknown functionality in the library wsdk-driver.sys of the component IoControlCode Handler. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-223291.
{
"affected": [],
"aliases": [
"CVE-2023-1446"
],
"database_specific": {
"cwe_ids": [
"CWE-404",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-17T07:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as problematic was found in Watchdog Anti-Virus 1.4.214.0. Affected by this vulnerability is an unknown functionality in the library wsdk-driver.sys of the component IoControlCode Handler. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-223291.",
"id": "GHSA-4x92-r8v7-j2m9",
"modified": "2023-03-23T18:30:20Z",
"published": "2023-03-17T09:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1446"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1zjK_DMjHz41RMpfa0iLQ4GXKQwEr4z2T/view"
},
{
"type": "WEB",
"url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1446"
},
{
"type": "WEB",
"url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/unassigned13"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.223291"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.223291"
}
],
"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-4X9Q-VPRP-3QVR
Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-13 21:31In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/ras: Move ras data alloc before bad page check
In the rare event if eeprom has only invalid address entries, allocation is skipped, this causes following NULL pointer issue [ 547.103445] BUG: kernel NULL pointer dereference, address: 0000000000000010 [ 547.118897] #PF: supervisor read access in kernel mode [ 547.130292] #PF: error_code(0x0000) - not-present page [ 547.141689] PGD 124757067 P4D 0 [ 547.148842] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 547.158504] CPU: 49 PID: 8167 Comm: cat Tainted: G OE 6.8.0-38-generic #38-Ubuntu [ 547.177998] Hardware name: Supermicro AS -8126GS-TNMR/H14DSG-OD, BIOS 1.7 09/12/2025 [ 547.195178] RIP: 0010:amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu] [ 547.210375] Code: e8 63 78 82 c0 45 31 d2 45 3b 75 08 48 8b 45 a0 73 44 44 89 f1 48 8b 7d 88 48 89 ca 48 c1 e2 05 48 29 ca 49 8b 4d 00 48 01 d1 <48> 83 79 10 00 74 17 49 63 f2 48 8b 49 08 41 83 c2 01 48 8d 34 76 [ 547.252045] RSP: 0018:ffa0000067287ac0 EFLAGS: 00010246 [ 547.263636] RAX: ff11000167c28130 RBX: ff11000127600000 RCX: 0000000000000000 [ 547.279467] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000125b1c800 [ 547.295298] RBP: ffa0000067287b50 R08: 0000000000000000 R09: 0000000000000000 [ 547.311129] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 547.326959] R13: ff11000217b1de00 R14: 0000000000000000 R15: 0000000000000092 [ 547.342790] FS: 0000746e59d14740(0000) GS:ff11017dfda80000(0000) knlGS:0000000000000000 [ 547.360744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 547.373489] CR2: 0000000000000010 CR3: 000000019585e001 CR4: 0000000000f71ef0 [ 547.389321] PKRU: 55555554 [ 547.395316] Call Trace: [ 547.400737] [ 547.405386] ? show_regs+0x6d/0x80 [ 547.412929] ? __die+0x24/0x80 [ 547.419697] ? page_fault_oops+0x99/0x1b0 [ 547.428588] ? do_user_addr_fault+0x2ee/0x6b0 [ 547.438249] ? exc_page_fault+0x83/0x1b0 [ 547.446949] ? asm_exc_page_fault+0x27/0x30 [ 547.456225] ? amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu] [ 547.470040] ? mas_wr_modify+0xcd/0x140 [ 547.478548] sysfs_kf_bin_read+0x63/0xb0 [ 547.487248] kernfs_file_read_iter+0xa1/0x190 [ 547.496909] kernfs_fop_read_iter+0x25/0x40 [ 547.506182] vfs_read+0x255/0x390
This also result in space left assigned to negative values. Moving data alloc call before bad page check resolves both the issue.
{
"affected": [],
"aliases": [
"CVE-2025-71293"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-06T12:16:28Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/ras: Move ras data alloc before bad page check\n\nIn the rare event if eeprom has only invalid address entries,\nallocation is skipped, this causes following NULL pointer issue\n[ 547.103445] BUG: kernel NULL pointer dereference, address: 0000000000000010\n[ 547.118897] #PF: supervisor read access in kernel mode\n[ 547.130292] #PF: error_code(0x0000) - not-present page\n[ 547.141689] PGD 124757067 P4D 0\n[ 547.148842] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[ 547.158504] CPU: 49 PID: 8167 Comm: cat Tainted: G OE 6.8.0-38-generic #38-Ubuntu\n[ 547.177998] Hardware name: Supermicro AS -8126GS-TNMR/H14DSG-OD, BIOS 1.7 09/12/2025\n[ 547.195178] RIP: 0010:amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu]\n[ 547.210375] Code: e8 63 78 82 c0 45 31 d2 45 3b 75 08 48 8b 45 a0 73 44 44 89 f1 48 8b 7d 88 48 89 ca 48 c1 e2 05 48 29 ca 49 8b 4d 00 48 01 d1 \u003c48\u003e 83 79 10 00 74 17 49 63 f2 48 8b 49 08 41 83 c2 01 48 8d 34 76\n[ 547.252045] RSP: 0018:ffa0000067287ac0 EFLAGS: 00010246\n[ 547.263636] RAX: ff11000167c28130 RBX: ff11000127600000 RCX: 0000000000000000\n[ 547.279467] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000125b1c800\n[ 547.295298] RBP: ffa0000067287b50 R08: 0000000000000000 R09: 0000000000000000\n[ 547.311129] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\n[ 547.326959] R13: ff11000217b1de00 R14: 0000000000000000 R15: 0000000000000092\n[ 547.342790] FS: 0000746e59d14740(0000) GS:ff11017dfda80000(0000) knlGS:0000000000000000\n[ 547.360744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 547.373489] CR2: 0000000000000010 CR3: 000000019585e001 CR4: 0000000000f71ef0\n[ 547.389321] PKRU: 55555554\n[ 547.395316] Call Trace:\n[ 547.400737] \u003cTASK\u003e\n[ 547.405386] ? show_regs+0x6d/0x80\n[ 547.412929] ? __die+0x24/0x80\n[ 547.419697] ? page_fault_oops+0x99/0x1b0\n[ 547.428588] ? do_user_addr_fault+0x2ee/0x6b0\n[ 547.438249] ? exc_page_fault+0x83/0x1b0\n[ 547.446949] ? asm_exc_page_fault+0x27/0x30\n[ 547.456225] ? amdgpu_ras_sysfs_badpages_read+0x2f2/0x5d0 [amdgpu]\n[ 547.470040] ? mas_wr_modify+0xcd/0x140\n[ 547.478548] sysfs_kf_bin_read+0x63/0xb0\n[ 547.487248] kernfs_file_read_iter+0xa1/0x190\n[ 547.496909] kernfs_fop_read_iter+0x25/0x40\n[ 547.506182] vfs_read+0x255/0x390\n\nThis also result in space left assigned to negative values.\nMoving data alloc call before bad page check resolves both the issue.",
"id": "GHSA-4x9q-vprp-3qvr",
"modified": "2026-05-13T21:31:57Z",
"published": "2026-05-06T12:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71293"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0b7f78caeffa51a1afa521c284e863ec3b5a36df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5c685235b60459381e959109b416a63db4d8dbac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bd68a1404b6fa2e7e9957b38ba22616faba43e75"
}
],
"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.