{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T13:15:46.417","vulnerabilities":[{"cve":{"id":"CVE-2023-52817","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-05-21T16:15:19.763","lastModified":"2025-09-16T14:15:48.110","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL\n\nIn certain types of chips, such as VEGA20, reading the amdgpu_regs_smc file could result in an abnormal null pointer access when the smc_rreg pointer is NULL. Below are the steps to reproduce this issue and the corresponding exception log:\n\n1. Navigate to the directory: /sys/kernel/debug/dri/0\n2. Execute command: cat amdgpu_regs_smc\n3. Exception Log::\n[4005007.702554] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[4005007.702562] #PF: supervisor instruction fetch in kernel mode\n[4005007.702567] #PF: error_code(0x0010) - not-present page\n[4005007.702570] PGD 0 P4D 0\n[4005007.702576] Oops: 0010 [#1] SMP NOPTI\n[4005007.702581] CPU: 4 PID: 62563 Comm: cat Tainted: G           OE     5.15.0-43-generic #46-Ubunt       u\n[4005007.702590] RIP: 0010:0x0\n[4005007.702598] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.\n[4005007.702600] RSP: 0018:ffffa82b46d27da0 EFLAGS: 00010206\n[4005007.702605] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffa82b46d27e68\n[4005007.702609] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff9940656e0000\n[4005007.702612] RBP: ffffa82b46d27dd8 R08: 0000000000000000 R09: ffff994060c07980\n[4005007.702615] R10: 0000000000020000 R11: 0000000000000000 R12: 00007f5e06753000\n[4005007.702618] R13: ffff9940656e0000 R14: ffffa82b46d27e68 R15: 00007f5e06753000\n[4005007.702622] FS:  00007f5e0755b740(0000) GS:ffff99479d300000(0000) knlGS:0000000000000000\n[4005007.702626] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[4005007.702629] CR2: ffffffffffffffd6 CR3: 00000003253fc000 CR4: 00000000003506e0\n[4005007.702633] Call Trace:\n[4005007.702636]  <TASK>\n[4005007.702640]  amdgpu_debugfs_regs_smc_read+0xb0/0x120 [amdgpu]\n[4005007.703002]  full_proxy_read+0x5c/0x80\n[4005007.703011]  vfs_read+0x9f/0x1a0\n[4005007.703019]  ksys_read+0x67/0xe0\n[4005007.703023]  __x64_sys_read+0x19/0x20\n[4005007.703028]  do_syscall_64+0x5c/0xc0\n[4005007.703034]  ? do_user_addr_fault+0x1e3/0x670\n[4005007.703040]  ? exit_to_user_mode_prepare+0x37/0xb0\n[4005007.703047]  ? irqentry_exit_to_user_mode+0x9/0x20\n[4005007.703052]  ? irqentry_exit+0x19/0x30\n[4005007.703057]  ? exc_page_fault+0x89/0x160\n[4005007.703062]  ? asm_exc_page_fault+0x8/0x30\n[4005007.703068]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n[4005007.703075] RIP: 0033:0x7f5e07672992\n[4005007.703079] Code: c0 e9 b2 fe ff ff 50 48 8d 3d fa b2 0c 00 e8 c5 1d 02 00 0f 1f 44 00 00 f3 0f        1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 e       c 28 48 89 54 24\n[4005007.703083] RSP: 002b:00007ffe03097898 EFLAGS: 00000246 ORIG_RAX: 0000000000000000\n[4005007.703088] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5e07672992\n[4005007.703091] RDX: 0000000000020000 RSI: 00007f5e06753000 RDI: 0000000000000003\n[4005007.703094] RBP: 00007f5e06753000 R08: 00007f5e06752010 R09: 00007f5e06752010\n[4005007.703096] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000022000\n[4005007.703099] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000\n[4005007.703105]  </TASK>\n[4005007.703107] Modules linked in: nf_tables libcrc32c nfnetlink algif_hash af_alg binfmt_misc nls_       iso8859_1 ipmi_ssif ast intel_rapl_msr intel_rapl_common drm_vram_helper drm_ttm_helper amd64_edac t       tm edac_mce_amd kvm_amd ccp mac_hid k10temp kvm acpi_ipmi ipmi_si rapl sch_fq_codel ipmi_devintf ipm       i_msghandler msr parport_pc ppdev lp parport mtd pstore_blk efi_pstore ramoops pstore_zone reed_solo       mon ip_tables x_tables autofs4 ib_uverbs ib_core amdgpu(OE) amddrm_ttm_helper(OE) amdttm(OE) iommu_v       2 amd_sched(OE) amdkcl(OE) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core        drm igb ahci xhci_pci libahci i2c_piix4 i2c_algo_bit xhci_pci_renesas dca\n[4005007.703184] CR2: 0000000000000000\n[4005007.703188] ---[ en\n---truncated---"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: corrige un acceso de puntero null cuando el puntero smc_rreg es NULL. En ciertos tipos de chips, como VEGA20, la lectura del archivo amdgpu_regs_smc podría resultar en un acceso anormal de puntero null cuando el puntero smc_rreg es NULL. A continuación se detallan los pasos para reproducir este problema y el registro de excepciones correspondiente: 1. Navegue hasta el directorio: /sys/kernel/debug/dri/0 2. Ejecute el comando: cat amdgpu_regs_smc 3. Registro de excepciones:: [4005007.702554] BUG: kernel Desreferencia de puntero NULL, dirección: 0000000000000000 [4005007.702562] #PF: búsqueda de instrucciones del supervisor en modo kernel [4005007.702567] #PF: código_error(0x0010) - página no presente [4005007.702570] PGD 0 P4D 0 [4005007. 702576] Ups: 0010 [#1 ] SMP NOPTI [4005007.702581] CPU: 4 PID: 62563 Comm: Cat Tainted: G Oe 5.15.0-43-Generic #46-Ubunt U [4005007.702590] RIP: 0010: 0x0 [4005007.702598] Código: Incedente de acceso a acceso a acceso a acceso a acceso a acceso a acceso a acceso a acceso a acceso a acceso a la operación. QEPD 0xffffffffffffffd6. [4005007.702600] RSP: 0018:ffffa82b46d27da0 EFLAGS: 00010206 [4005007.702605] RAX: 00000000000000000 RBX: 0000000000000000 RCX: e68 [4005007.702609] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff9940656e0000 [4005007.702612] RBP: ffffa82b46d27dd8 R08: 0000000 R09: ffff994060c07980 [4005007.702615] R10: 0000000000020000 R11: 0000000000000000 R12: 00007f5e06753000 [4005007.702618] R13: ffff9940656e0000 R14: ffffa82b46d27e68 R15: 007f5e06753000 [4005007.702622] FS: 00007f5e0755b740(0000) GS:ffff99479d300000(0000) knlGS:0000000000000000 [4005007.702626] CS: 0010 DS: 0000ES: 0000 CR0: 0000000080050033 [4005007.702629] CR2: ffffffffffffffd6 CR3: 00000003253fc000 CR4: 00000000003506e0 [4005007.702633] Seguimiento de llamadas: [4005007.7 02636]  [4005007.702640] amdgpu_debugfs_regs_smc_read+0xb0/0x120 [amdgpu] [4005007.703002] full_proxy_read+0x5c/0x80 [4005007.703011] vfs_read+0x9f/0x1a0 [4005007.703019] ksys_read+0x67/0xe0 [4005007.703023] __x64_sys_read+0x19/0x20 [4005007.703028] do_syscall_64+0x5c/0xc0 [40 05007.703034] ? do_user_addr_fault+0x1e3/0x670 [4005007.703040] ? exit_to_user_mode_prepare+0x37/0xb0 [4005007.703047] ? irqentry_exit_to_user_mode+0x9/0x20 [4005007.703052] ? irqentry_exit+0x19/0x30 [4005007.703057] ? exc_page_fault+0x89/0x160 [4005007.703062] ? asm_exc_page_fault+0x8/0x30 [4005007.703068] Entry_SYSCALL_64_after_hwframe+0x44/0xae [4005007.703075] RIP: 0033:0x7f5e07672992 [4005007.703079] Código: c0 e9 b2 fe ff ff 50 48 8d 3d fa b2 0c 00 e8 c5 1d 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 &lt;48&gt; 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [4005007.70 3083]RSP: 002b:00007ffe03097898 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [4005007.703088] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5e07672992 [4005007.703091] RDX: 0000000000020000 RSI: 00007f5e06753000 RDI: 0000000000000003 [4005007.703094] RBP: 00007f5e06753000 R08: 00007f5e06752010 R09: 007f5e06752010 [4005007.703096] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000022000 [4005007.703099] R13: 000000000000003 R14: 0000000000020000 R15: 0000000000020000 [40050 07.703105]  [4005007.703107] Módulos vinculados en: nf_tables libcrc32c nfnetlink algif_hash af_alg binfmt_misc nls_ iso8859_1 ipmi_ssif ast intel_rapl_msr intel_rapl_common drm_vram_helper drm_ttm_helper amd64_edac t tm edac_mce_amd kvm_amd ccp mac_hid k10temp kvm acpi_ipmi ipmi_si rapl sch_fq_codel ipmi_devintf ipm i_msghandler msr parport_pc ppdev lp parport mtd pstore_blk efi_pstore ramoops pstore_zone reed_solo mon ip_tables x_tables autofs4 ib_uverbs ib_core amdgpu(OE) _helper(OE) amdttm(OE) iommu_v 2 amd_sched(OE) amdkcl(OE) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core drm igb ahci xhci_pci libahci i2c_piix4 i2c_algo_bit xhci_pci_renesas dca [4005007.703184] CR2: 0000000000000000 [4005007.703188] ---[ es ---truncado---"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.300","matchCriteriaId":"E866C4FD-43D5-4D3E-98E7-16218BE92F3E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.262","matchCriteriaId":"28B0AAED-45BA-4928-9A85-66A429B9F038"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.202","matchCriteriaId":"39D508B4-58C7-40C2-BE05-44E41110EB98"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.140","matchCriteriaId":"15D6C23C-78A3-40D2-B76B-4F1D9C2D95C0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.64","matchCriteriaId":"8D7C884A-CAA2-4EA2-9FEB-5CE776D7B05F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.5.13","matchCriteriaId":"674C4F82-C336-4B49-BF64-1DE422E889C4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.3","matchCriteriaId":"B58252FA-A49C-411F-9B28-DC5FE44BC5A0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/174f62a0aa15c211e60208b41ee9e7cdfb73d455","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/437e0fa907ba39b4d7eda863c03ea9cf48bd93a9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5104fdf50d326db2c1a994f8b35dcd46e63ae4ad","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6c1b3d89a2dda79881726bb6e37af19c0936d736","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/820daf9ffe2b0afb804567b10983fb38bc5ae288","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ba3c0796d292de84f2932cc5bbb0f771fc720996","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/bf2d51eedf03bd61e3556e35d74d49e2e6112398","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f475d5502f33a6c5b149b0afe96316ad1962a64a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/174f62a0aa15c211e60208b41ee9e7cdfb73d455","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/437e0fa907ba39b4d7eda863c03ea9cf48bd93a9","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5104fdf50d326db2c1a994f8b35dcd46e63ae4ad","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6c1b3d89a2dda79881726bb6e37af19c0936d736","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/820daf9ffe2b0afb804567b10983fb38bc5ae288","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ba3c0796d292de84f2932cc5bbb0f771fc720996","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/bf2d51eedf03bd61e3556e35d74d49e2e6112398","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f475d5502f33a6c5b149b0afe96316ad1962a64a","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}