| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL pointer dereference for DTN log in DCN401\n\nWhen users run the command:\n\ncat /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log\n\nThe following NULL pointer dereference happens:\n\n[ +0.000003] BUG: kernel NULL pointer dereference, address: NULL\n[ +0.000005] #PF: supervisor instruction fetch in kernel mode\n[ +0.000002] #PF: error_code(0x0010) - not-present page\n[ +0.000002] PGD 0 P4D 0\n[ +0.000004] Oops: 0010 [#1] PREEMPT SMP NOPTI\n[ +0.000003] RIP: 0010:0x0\n[ +0.000008] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[...]\n[ +0.000002] PKRU: 55555554\n[ +0.000002] Call Trace:\n[ +0.000002] <TASK>\n[ +0.000003] ? show_regs+0x65/0x70\n[ +0.000006] ? __die+0x24/0x70\n[ +0.000004] ? page_fault_oops+0x160/0x470\n[ +0.000006] ? do_user_addr_fault+0x2b5/0x690\n[ +0.000003] ? prb_read_valid+0x1c/0x30\n[ +0.000005] ? exc_page_fault+0x8c/0x1a0\n[ +0.000005] ? asm_exc_page_fault+0x27/0x30\n[ +0.000012] dcn10_log_color_state+0xf9/0x510 [amdgpu]\n[ +0.000306] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000003] ? vsnprintf+0x2fb/0x600\n[ +0.000009] dcn10_log_hw_state+0xfd0/0xfe0 [amdgpu]\n[ +0.000218] ? __mod_memcg_lruvec_state+0xe8/0x170\n[ +0.000008] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000002] ? debug_smp_processor_id+0x17/0x20\n[ +0.000003] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000002] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000002] ? set_ptes.isra.0+0x2b/0x90\n[ +0.000004] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000002] ? _raw_spin_unlock+0x19/0x40\n[ +0.000004] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000002] ? do_anonymous_page+0x337/0x700\n[ +0.000004] dtn_log_read+0x82/0x120 [amdgpu]\n[ +0.000207] full_proxy_read+0x66/0x90\n[ +0.000007] vfs_read+0xb0/0x340\n[ +0.000005] ? __count_memcg_events+0x79/0xe0\n[ +0.000002] ? srso_alias_return_thunk+0x5/0xfbef5\n[ +0.000003] ? count_memcg_events.constprop.0+0x1e/0x40\n[ +0.000003] ? handle_mm_fault+0xb2/0x370\n[ +0.000003] ksys_read+0x6b/0xf0\n[ +0.000004] __x64_sys_read+0x19/0x20\n[ +0.000003] do_syscall_64+0x60/0x130\n[ +0.000004] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[ +0.000003] RIP: 0033:0x7fdf32f147e2\n[...]\n\nThis error happens when the color log tries to read the gamut remap\ninformation from DCN401 which is not initialized in the dcn401_dpp_funcs\nwhich leads to a null pointer dereference. This commit addresses this\nissue by adding a proper guard to access the gamut_remap callback in\ncase the specific ASIC did not implement this function." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c" |
| ], |
| "versions": [ |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "1e68b7ce6bc6073579fe8713ec6b85aa9cd2e351", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "5af757124792817f8eb1bd0c80ad60fab519586b", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.10.5", |
| "lessThanOrEqual": "6.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.10.5" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.11" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/1e68b7ce6bc6073579fe8713ec6b85aa9cd2e351" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5af757124792817f8eb1bd0c80ad60fab519586b" |
| } |
| ], |
| "title": "drm/amd/display: Fix NULL pointer dereference for DTN log in DCN401", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-43901", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
