CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6310 vulnerabilities reference this CWE, most recent first.
GHSA-GJCW-VMFM-PC8C
Vulnerability from github – Published: 2024-12-03 18:31 – Updated: 2024-12-03 21:31An unauthenticated attacker can perform a null pointer dereference in the DHIP Service (UDP port 37810). This vulnerability has been resolved in firmware version 2.800.0000000.8.R.20241111.
{
"affected": [],
"aliases": [
"CVE-2024-52546"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-03T18:15:15Z",
"severity": "MODERATE"
},
"details": "An unauthenticated attacker can perform a null pointer dereference in the DHIP Service (UDP port 37810). This vulnerability has been resolved in firmware version 2.800.0000000.8.R.20241111.",
"id": "GHSA-gjcw-vmfm-pc8c",
"modified": "2024-12-03T21:31:22Z",
"published": "2024-12-03T18:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52546"
},
{
"type": "WEB",
"url": "https://github.com/sfewer-r7/LorexExploit"
},
{
"type": "WEB",
"url": "https://www.rapid7.com/blog/post/2024/12/03/lorex-2k-indoor-wi-fi-security-camera-multiple-vulnerabilities-fixed"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-GJG2-R77W-JX7Q
Vulnerability from github – Published: 2025-01-19 12:31 – Updated: 2025-09-24 18:30In the Linux kernel, the following vulnerability has been resolved:
x86/fpu: Ensure shadow stack is active before "getting" registers
The x86 shadow stack support has its own set of registers. Those registers are XSAVE-managed, but they are "supervisor state components" which means that userspace can not touch them with XSAVE/XRSTOR. It also means that they are not accessible from the existing ptrace ABI for XSAVE state. Thus, there is a new ptrace get/set interface for it.
The regset code that ptrace uses provides an ->active() handler in addition to the get/set ones. For shadow stack this ->active() handler verifies that shadow stack is enabled via the ARCH_SHSTK_SHSTK bit in the thread struct. The ->active() handler is checked from some call sites of the regset get/set handlers, but not the ptrace ones. This was not understood when shadow stack support was put in place.
As a result, both the set/get handlers can be called with XFEATURE_CET_USER in its init state, which would cause get_xsave_addr() to return NULL and trigger a WARN_ON(). The ssp_set() handler luckily has an ssp_active() check to avoid surprising the kernel with shadow stack behavior when the kernel is not ready for it (ARCH_SHSTK_SHSTK==0). That check just happened to avoid the warning.
But the ->get() side wasn't so lucky. It can be called with shadow stacks disabled, triggering the warning in practice, as reported by Christina Schimpe:
WARNING: CPU: 5 PID: 1773 at arch/x86/kernel/fpu/regset.c:198 ssp_get+0x89/0xa0 [...] Call Trace: ? show_regs+0x6e/0x80 ? ssp_get+0x89/0xa0 ? __warn+0x91/0x150 ? ssp_get+0x89/0xa0 ? report_bug+0x19d/0x1b0 ? handle_bug+0x46/0x80 ? exc_invalid_op+0x1d/0x80 ? asm_exc_invalid_op+0x1f/0x30 ? __pfx_ssp_get+0x10/0x10 ? ssp_get+0x89/0xa0 ? ssp_get+0x52/0xa0 __regset_get+0xad/0xf0 copy_regset_to_user+0x52/0xc0 ptrace_regset+0x119/0x140 ptrace_request+0x13c/0x850 ? wait_task_inactive+0x142/0x1d0 ? do_syscall_64+0x6d/0x90 arch_ptrace+0x102/0x300 [...]
Ensure that shadow stacks are active in a thread before looking them up in the XSAVE buffer. Since ARCH_SHSTK_SHSTK and user_ssp[SHSTK_EN] are set at the same time, the active check ensures that there will be something to find in the XSAVE buffer.
[ dhansen: changelog/subject tweaks ]
{
"affected": [],
"aliases": [
"CVE-2025-21632"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-19T11:15:08Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/fpu: Ensure shadow stack is active before \"getting\" registers\n\nThe x86 shadow stack support has its own set of registers. Those registers\nare XSAVE-managed, but they are \"supervisor state components\" which means\nthat userspace can not touch them with XSAVE/XRSTOR. It also means that\nthey are not accessible from the existing ptrace ABI for XSAVE state.\nThus, there is a new ptrace get/set interface for it.\n\nThe regset code that ptrace uses provides an -\u003eactive() handler in\naddition to the get/set ones. For shadow stack this -\u003eactive() handler\nverifies that shadow stack is enabled via the ARCH_SHSTK_SHSTK bit in the\nthread struct. The -\u003eactive() handler is checked from some call sites of\nthe regset get/set handlers, but not the ptrace ones. This was not\nunderstood when shadow stack support was put in place.\n\nAs a result, both the set/get handlers can be called with\nXFEATURE_CET_USER in its init state, which would cause get_xsave_addr() to\nreturn NULL and trigger a WARN_ON(). The ssp_set() handler luckily has an\nssp_active() check to avoid surprising the kernel with shadow stack\nbehavior when the kernel is not ready for it (ARCH_SHSTK_SHSTK==0). That\ncheck just happened to avoid the warning.\n\nBut the -\u003eget() side wasn\u0027t so lucky. It can be called with shadow stacks\ndisabled, triggering the warning in practice, as reported by Christina\nSchimpe:\n\nWARNING: CPU: 5 PID: 1773 at arch/x86/kernel/fpu/regset.c:198 ssp_get+0x89/0xa0\n[...]\nCall Trace:\n\u003cTASK\u003e\n? show_regs+0x6e/0x80\n? ssp_get+0x89/0xa0\n? __warn+0x91/0x150\n? ssp_get+0x89/0xa0\n? report_bug+0x19d/0x1b0\n? handle_bug+0x46/0x80\n? exc_invalid_op+0x1d/0x80\n? asm_exc_invalid_op+0x1f/0x30\n? __pfx_ssp_get+0x10/0x10\n? ssp_get+0x89/0xa0\n? ssp_get+0x52/0xa0\n__regset_get+0xad/0xf0\ncopy_regset_to_user+0x52/0xc0\nptrace_regset+0x119/0x140\nptrace_request+0x13c/0x850\n? wait_task_inactive+0x142/0x1d0\n? do_syscall_64+0x6d/0x90\narch_ptrace+0x102/0x300\n[...]\n\nEnsure that shadow stacks are active in a thread before looking them up\nin the XSAVE buffer. Since ARCH_SHSTK_SHSTK and user_ssp[SHSTK_EN] are\nset at the same time, the active check ensures that there will be\nsomething to find in the XSAVE buffer.\n\n[ dhansen: changelog/subject tweaks ]",
"id": "GHSA-gjg2-r77w-jx7q",
"modified": "2025-09-24T18:30:23Z",
"published": "2025-01-19T12:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21632"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a3a872214188e4268d31581ed0cd44508e038cf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6bfe1fc22f462bec87422cdcbec4d7a2f43ff01d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a9d9c33132d49329ada647e4514d210d15e31d81"
}
],
"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-GJHP-RJFG-HGM3
Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2022-05-24 19:08A component of the HarmonyOS 2.0 has a Null Pointer Dereference Vulnerability. Local attackers may exploit this vulnerability to cause system denial of service.
{
"affected": [],
"aliases": [
"CVE-2021-22318"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-14T11:15:00Z",
"severity": "MODERATE"
},
"details": "A component of the HarmonyOS 2.0 has a Null Pointer Dereference Vulnerability. Local attackers may exploit this vulnerability to cause system denial of service.",
"id": "GHSA-gjhp-rjfg-hgm3",
"modified": "2022-05-24T19:08:04Z",
"published": "2022-05-24T19:08:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22318"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/cn/console/safetyDetail?id=9145efa5d9064d94a7fc3968b6054d83\u0026pageSize=10\u0026pageIndex=1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-GJHX-WC4X-RWWP
Vulnerability from github – Published: 2023-08-14 18:32 – Updated: 2023-12-11 21:30QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.
{
"affected": [],
"aliases": [
"CVE-2023-40360"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-14T18:15:11Z",
"severity": "MODERATE"
},
"details": "QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.",
"id": "GHSA-gjhx-wc4x-rwwp",
"modified": "2023-12-11T21:30:18Z",
"published": "2023-08-14T18:32:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40360"
},
{
"type": "WEB",
"url": "https://gitlab.com/birkelund/qemu/-/commit/6c8f8456cb0b239812dee5211881426496da7b98"
},
{
"type": "WEB",
"url": "https://gitlab.com/qemu-project/qemu/-/issues/1815"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230915-0004"
},
{
"type": "WEB",
"url": "https://www.qemu.org/docs/master/system/security.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-GJJG-HHWJ-9MVJ
Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-11-03 21:33In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: avoid NPD when ASIC does not support DMUB
ctx->dmub_srv will de NULL if the ASIC does not support DMUB, which is tested in dm_dmub_sw_init.
However, it will be dereferenced in dmub_hw_lock_mgr_cmd if should_use_dmub_lock returns true.
This has been the case since dmub support has been added for PSR1.
Fix this by checking for dmub_srv in should_use_dmub_lock.
[ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 37.447808] #PF: supervisor read access in kernel mode [ 37.452959] #PF: error_code(0x0000) - not-present page [ 37.458112] PGD 0 P4D 0 [ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88 [ 37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023 [ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 <48> 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5 [ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202 [ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358 [ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000 [ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5 [ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000 [ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000 [ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000 [ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0 [ 37.572697] Call Trace: [ 37.575152] [ 37.577258] ? __die_body+0x66/0xb0 [ 37.580756] ? page_fault_oops+0x3e7/0x4a0 [ 37.584861] ? exc_page_fault+0x3e/0xe0 [ 37.588706] ? exc_page_fault+0x5c/0xe0 [ 37.592550] ? asm_exc_page_fault+0x22/0x30 [ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.601107] dcn10_cursor_lock+0x1e1/0x240 [ 37.605211] program_cursor_attributes+0x81/0x190 [ 37.609923] commit_planes_for_stream+0x998/0x1ef0 [ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0 [ 37.619703] dc_update_planes_and_stream+0x78/0x140 [ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0 [ 37.629832] ? srso_return_thunk+0x5/0x5f [ 37.633847] ? mark_held_locks+0x6d/0xd0 [ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50 [ 37.642135] ? srso_return_thunk+0x5/0x5f [ 37.646148] ? lockdep_hardirqs_on+0x95/0x150 [ 37.650510] ? srso_return_thunk+0x5/0x5f [ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50 [ 37.658883] ? srso_return_thunk+0x5/0x5f [ 37.662897] ? wait_for_common+0x186/0x1c0 [ 37.666998] ? srso_return_thunk+0x5/0x5f [ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170 [ 37.675983] commit_tail+0xf5/0x1c0 [ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0 [ 37.684186] drm_atomic_commit+0xd6/0x100 [ 37.688199] ? __cfidrmprintfn_info+0x10/0x10 [ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130 [ 37.698054] drm_mode_cursor_common+0x501/0x670 [ 37.702600] ? cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.707572] drm_mode_cursor_ioctl+0x48/0x70 [ 37.711851] drm_ioctl_kernel+0xf2/0x150 [ 37.715781] drm_ioctl+0x363/0x590 [ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.724165] amdgpu_drm_ioctl+0x41/0x80 [ 37.728013] __se_sys_ioctl+0x7f/0xd0 [ 37.731685] do_syscall_64+0x87/0x100 [ 37.735355] ? vma_end_read+0x12/0xe0 [ 37.739024] ? srso_return_thunk+0x5/0x5f [ 37.743041] ? find_held_lock+0x47/0xf0 [ 37.746884] ? vma_end_read+0x12/0xe0 [ 37.750552] ? srso_return_thunk+0x5/0 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2025-22093"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T15:16:03Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: avoid NPD when ASIC does not support DMUB\n\nctx-\u003edmub_srv will de NULL if the ASIC does not support DMUB, which is\ntested in dm_dmub_sw_init.\n\nHowever, it will be dereferenced in dmub_hw_lock_mgr_cmd if\nshould_use_dmub_lock returns true.\n\nThis has been the case since dmub support has been added for PSR1.\n\nFix this by checking for dmub_srv in should_use_dmub_lock.\n\n[ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[ 37.447808] #PF: supervisor read access in kernel mode\n[ 37.452959] #PF: error_code(0x0000) - not-present page\n[ 37.458112] PGD 0 P4D 0\n[ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n[ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88\n[ 37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023\n[ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0\n[ 37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 \u003c48\u003e 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5\n[ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202\n[ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358\n[ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000\n[ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5\n[ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000\n[ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000\n[ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000\n[ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0\n[ 37.572697] Call Trace:\n[ 37.575152] \u003cTASK\u003e\n[ 37.577258] ? __die_body+0x66/0xb0\n[ 37.580756] ? page_fault_oops+0x3e7/0x4a0\n[ 37.584861] ? exc_page_fault+0x3e/0xe0\n[ 37.588706] ? exc_page_fault+0x5c/0xe0\n[ 37.592550] ? asm_exc_page_fault+0x22/0x30\n[ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0\n[ 37.601107] dcn10_cursor_lock+0x1e1/0x240\n[ 37.605211] program_cursor_attributes+0x81/0x190\n[ 37.609923] commit_planes_for_stream+0x998/0x1ef0\n[ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0\n[ 37.619703] dc_update_planes_and_stream+0x78/0x140\n[ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0\n[ 37.629832] ? srso_return_thunk+0x5/0x5f\n[ 37.633847] ? mark_held_locks+0x6d/0xd0\n[ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50\n[ 37.642135] ? srso_return_thunk+0x5/0x5f\n[ 37.646148] ? lockdep_hardirqs_on+0x95/0x150\n[ 37.650510] ? srso_return_thunk+0x5/0x5f\n[ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50\n[ 37.658883] ? srso_return_thunk+0x5/0x5f\n[ 37.662897] ? wait_for_common+0x186/0x1c0\n[ 37.666998] ? srso_return_thunk+0x5/0x5f\n[ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170\n[ 37.675983] commit_tail+0xf5/0x1c0\n[ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0\n[ 37.684186] drm_atomic_commit+0xd6/0x100\n[ 37.688199] ? __cfi___drm_printfn_info+0x10/0x10\n[ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130\n[ 37.698054] drm_mode_cursor_common+0x501/0x670\n[ 37.702600] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[ 37.707572] drm_mode_cursor_ioctl+0x48/0x70\n[ 37.711851] drm_ioctl_kernel+0xf2/0x150\n[ 37.715781] drm_ioctl+0x363/0x590\n[ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[ 37.724165] amdgpu_drm_ioctl+0x41/0x80\n[ 37.728013] __se_sys_ioctl+0x7f/0xd0\n[ 37.731685] do_syscall_64+0x87/0x100\n[ 37.735355] ? vma_end_read+0x12/0xe0\n[ 37.739024] ? srso_return_thunk+0x5/0x5f\n[ 37.743041] ? find_held_lock+0x47/0xf0\n[ 37.746884] ? vma_end_read+0x12/0xe0\n[ 37.750552] ? srso_return_thunk+0x5/0\n---truncated---",
"id": "GHSA-gjjg-hhwj-9mvj",
"modified": "2025-11-03T21:33:37Z",
"published": "2025-04-16T15:34:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22093"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3453bcaf2ca92659346bf8504c2b52b3993fbd79"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/35ad39afd007eddf34b3307bebb715c26891cc96"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42d9d7bed270247f134190ba0cb05bbd072f58c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e4b1e04740cdb28de189285007366d99a92f1ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b3a93a2407ad23c8d5bacabaf7cecbb4c6cdd461"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d953e2cd59ab466569c6f9da460e01caf1c83559"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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-GJJR-423G-HM3J
Vulnerability from github – Published: 2022-05-17 00:21 – Updated: 2022-05-17 00:21In SWFTools 0.9.2, the wav_convert2mono function in lib/wav.c does not properly restrict a multiplication within a malloc call, which allows remote attackers to cause a denial of service (integer overflow and NULL pointer dereference) via a crafted WAV file.
{
"affected": [],
"aliases": [
"CVE-2017-16868"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-11-17T09:29:00Z",
"severity": "MODERATE"
},
"details": "In SWFTools 0.9.2, the wav_convert2mono function in lib/wav.c does not properly restrict a multiplication within a malloc call, which allows remote attackers to cause a denial of service (integer overflow and NULL pointer dereference) via a crafted WAV file.",
"id": "GHSA-gjjr-423g-hm3j",
"modified": "2022-05-17T00:21:40Z",
"published": "2022-05-17T00:21:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16868"
},
{
"type": "WEB",
"url": "https://github.com/matthiaskramm/swftools/issues/52"
}
],
"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-GJM8-QC7W-3XXP
Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2024-04-04 03:04Fluent Bit 1.6.10 has a NULL pointer dereference when an flb_malloc return value is not validated by flb_avro.c or http_server/api/v1/metrics.c.
{
"affected": [],
"aliases": [
"CVE-2021-27186"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-10T22:15:00Z",
"severity": "HIGH"
},
"details": "Fluent Bit 1.6.10 has a NULL pointer dereference when an flb_malloc return value is not validated by flb_avro.c or http_server/api/v1/metrics.c.",
"id": "GHSA-gjm8-qc7w-3xxp",
"modified": "2024-04-04T03:04:33Z",
"published": "2022-05-24T17:41:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27186"
},
{
"type": "WEB",
"url": "https://github.com/fluent/fluent-bit/issues/3044"
},
{
"type": "WEB",
"url": "https://github.com/fluent/fluent-bit/pull/3045"
},
{
"type": "WEB",
"url": "https://github.com/fluent/fluent-bit/pull/3047"
}
],
"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-GJMJ-X7M9-7JQW
Vulnerability from github – Published: 2022-05-14 01:50 – Updated: 2022-05-14 01:50An issue was discovered in uriparser before 0.9.0. UriCommon.c allows attempted operations on NULL input via a uriResetUri* function.
{
"affected": [],
"aliases": [
"CVE-2018-19200"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-12T15:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in uriparser before 0.9.0. UriCommon.c allows attempted operations on NULL input via a uriResetUri* function.",
"id": "GHSA-gjmj-x7m9-7jqw",
"modified": "2022-05-14T01:50:05Z",
"published": "2022-05-14T01:50:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19200"
},
{
"type": "WEB",
"url": "https://github.com/uriparser/uriparser/commit/f58c25069cf4a986fe17a80c5b38687e31feb539"
},
{
"type": "WEB",
"url": "https://github.com/uriparser/uriparser/blob/uriparser-0.9.0/ChangeLog"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00019.html"
}
],
"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-GJMQ-F69C-PQW7
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47The HintFile function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.
{
"affected": [],
"aliases": [
"CVE-2021-31257"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-19T19:15:00Z",
"severity": "MODERATE"
},
"details": "The HintFile function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.",
"id": "GHSA-gjmq-f69c-pqw7",
"modified": "2022-05-24T17:47:52Z",
"published": "2022-05-24T17:47:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31257"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/1734"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/commit/87afe070cd6866df7fe80f11b26ef75161de85e0"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-GJP8-77GC-R4RR
Vulnerability from github – Published: 2024-09-04 21:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration
re-enumerating full-speed devices after a failed address device command can trigger a NULL pointer dereference.
Full-speed devices may need to reconfigure the endpoint 0 Max Packet Size value during enumeration. Usb core calls usb_ep0_reinit() in this case, which ends up calling xhci_configure_endpoint().
On Panther point xHC the xhci_configure_endpoint() function will additionally check and reserve bandwidth in software. Other hosts do this in hardware
If xHC address device command fails then a new xhci_virt_device structure is allocated as part of re-enabling the slot, but the bandwidth table pointers are not set up properly here. This triggers the NULL pointer dereference the next time usb_ep0_reinit() is called and xhci_configure_endpoint() tries to check and reserve bandwidth
[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd [46710.713699] usb 3-1: Device not responding to setup address. [46710.917684] usb 3-1: Device not responding to setup address. [46711.125536] usb 3-1: device not accepting address 5, error -71 [46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008 [46711.125600] #PF: supervisor read access in kernel mode [46711.125603] #PF: error_code(0x0000) - not-present page [46711.125606] PGD 0 P4D 0 [46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI [46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1 [46711.125620] Hardware name: Gigabyte Technology Co., Ltd. [46711.125623] Workqueue: usb_hub_wq hub_event [usbcore] [46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c
Fix this by making sure bandwidth table pointers are set up correctly after a failed address device command, and additionally by avoiding checking for bandwidth in cases like this where no actual endpoints are added or removed, i.e. only context for default control endpoint 0 is evaluated.
{
"affected": [],
"aliases": [
"CVE-2024-45006"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-04T20:15:08Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix Panther point NULL pointer deref at full-speed re-enumeration\n\nre-enumerating full-speed devices after a failed address device command\ncan trigger a NULL pointer dereference.\n\nFull-speed devices may need to reconfigure the endpoint 0 Max Packet Size\nvalue during enumeration. Usb core calls usb_ep0_reinit() in this case,\nwhich ends up calling xhci_configure_endpoint().\n\nOn Panther point xHC the xhci_configure_endpoint() function will\nadditionally check and reserve bandwidth in software. Other hosts do\nthis in hardware\n\nIf xHC address device command fails then a new xhci_virt_device structure\nis allocated as part of re-enabling the slot, but the bandwidth table\npointers are not set up properly here.\nThis triggers the NULL pointer dereference the next time usb_ep0_reinit()\nis called and xhci_configure_endpoint() tries to check and reserve\nbandwidth\n\n[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd\n[46710.713699] usb 3-1: Device not responding to setup address.\n[46710.917684] usb 3-1: Device not responding to setup address.\n[46711.125536] usb 3-1: device not accepting address 5, error -71\n[46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008\n[46711.125600] #PF: supervisor read access in kernel mode\n[46711.125603] #PF: error_code(0x0000) - not-present page\n[46711.125606] PGD 0 P4D 0\n[46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI\n[46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1\n[46711.125620] Hardware name: Gigabyte Technology Co., Ltd.\n[46711.125623] Workqueue: usb_hub_wq hub_event [usbcore]\n[46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c\n\nFix this by making sure bandwidth table pointers are set up correctly\nafter a failed address device command, and additionally by avoiding\nchecking for bandwidth in cases like this where no actual endpoints are\nadded or removed, i.e. only context for default control endpoint 0 is\nevaluated.",
"id": "GHSA-gjp8-77gc-r4rr",
"modified": "2025-11-04T00:31:23Z",
"published": "2024-09-04T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45006"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0f0654318e25b2c185e245ba4a591e42fabb5e59"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/365ef7c4277fdd781a695c3553fa157d622d805d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5ad898ae82412f8a689d59829804bff2999dd0ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6b99de301d78e1f5249e57ef2c32e1dec3df2bb1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8fb9d412ebe2f245f13481e4624b40e651570cbd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a57b0ebabe6862dce0a2e0f13e17941ad72fc56b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/af8e119f52e9c13e556be9e03f27957554a84656"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef0a0e616b2789bb804a0ce5e161db03170a85b6"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.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"
}
]
}
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.