ghsa-p265-m62q-92v9
Vulnerability from github
Published
2024-05-21 18:31
Modified
2024-06-03 18:55
Severity ?
Details
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL
In 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:
- Navigate to the directory: /sys/kernel/debug/dri/0
- Execute command: cat amdgpu_regs_smc
- Exception Log::
[4005007.702554] BUG: kernel NULL pointer dereference, address: 0000000000000000
[4005007.702562] #PF: supervisor instruction fetch in kernel mode
[4005007.702567] #PF: error_code(0x0010) - not-present page
[4005007.702570] PGD 0 P4D 0
[4005007.702576] Oops: 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] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[4005007.702600] RSP: 0018:ffffa82b46d27da0 EFLAGS: 00010206
[4005007.702605] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffa82b46d27e68
[4005007.702609] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff9940656e0000
[4005007.702612] RBP: ffffa82b46d27dd8 R08: 0000000000000000 R09: ffff994060c07980
[4005007.702615] R10: 0000000000020000 R11: 0000000000000000 R12: 00007f5e06753000
[4005007.702618] R13: ffff9940656e0000 R14: ffffa82b46d27e68 R15: 00007f5e06753000
[4005007.702622] FS: 00007f5e0755b740(0000) GS:ffff99479d300000(0000) knlGS:0000000000000000
[4005007.702626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[4005007.702629] CR2: ffffffffffffffd6 CR3: 00000003253fc000 CR4: 00000000003506e0
[4005007.702633] Call Trace:
[4005007.702636]
[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 [4005007.703034] ? 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] 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 [4005007.703083] 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: 00007f5e06752010 [4005007.703096] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000022000 [4005007.703099] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000 [4005007.703105] [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 [4005007.703184] CR2: 0000000000000000 [4005007.703188] ---[ en ---truncated---
{
"affected": [],
"aliases": [
"CVE-2023-52817"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:19Z",
"severity": "MODERATE"
},
"details": "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] \u003cTASK\u003e\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 \u003c48\u003e 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] \u003c/TASK\u003e\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---",
"id": "GHSA-p265-m62q-92v9",
"modified": "2024-06-03T18:55:27Z",
"published": "2024-05-21T18:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52817"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/174f62a0aa15c211e60208b41ee9e7cdfb73d455"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/437e0fa907ba39b4d7eda863c03ea9cf48bd93a9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5104fdf50d326db2c1a994f8b35dcd46e63ae4ad"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c1b3d89a2dda79881726bb6e37af19c0936d736"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/820daf9ffe2b0afb804567b10983fb38bc5ae288"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba3c0796d292de84f2932cc5bbb0f771fc720996"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf2d51eedf03bd61e3556e35d74d49e2e6112398"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f475d5502f33a6c5b149b0afe96316ad1962a64a"
}
],
"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"
}
]
}
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.