{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-27062", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.215Z", "datePublished": "2024-05-01T13:00:21.052Z", "dateUpdated": "2026-08-05T11:29:19.592Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:19.592Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau: lock the client object tree.\n\nIt appears the client object tree has no locking unless I've missed\nsomething else. Fix races around adding/removing client objects,\nmostly vram bar mappings.\n\n 4562.099306] general protection fault, probably for non-canonical address 0x6677ed422bceb80c: 0000 [#1] PREEMPT SMP PTI\n[ 4562.099314] CPU: 2 PID: 23171 Comm: deqp-vk Not tainted 6.8.0-rc6+ #27\n[ 4562.099324] Hardware name: Gigabyte Technology Co., Ltd. Z390 I AORUS PRO WIFI/Z390 I AORUS PRO WIFI-CF, BIOS F8 11/05/2021\n[ 4562.099330] RIP: 0010:nvkm_object_search+0x1d/0x70 [nouveau]\n[ 4562.099503] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 48 89 f8 48 85 f6 74 39 48 8b 87 a0 00 00 00 48 85 c0 74 12 <48> 8b 48 f8 48 39 ce 73 15 48 8b 40 10 48 85 c0 75 ee 48 c7 c0 fe\n[ 4562.099506] RSP: 0000:ffffa94cc420bbf8 EFLAGS: 00010206\n[ 4562.099512] RAX: 6677ed422bceb814 RBX: ffff98108791f400 RCX: ffff9810f26b8f58\n[ 4562.099517] RDX: 0000000000000000 RSI: ffff9810f26b9158 RDI: ffff98108791f400\n[ 4562.099519] RBP: ffff9810f26b9158 R08: 0000000000000000 R09: 0000000000000000\n[ 4562.099521] R10: ffffa94cc420bc48 R11: 0000000000000001 R12: ffff9810f02a7cc0\n[ 4562.099526] R13: 0000000000000000 R14: 00000000000000ff R15: 0000000000000007\n[ 4562.099528] FS: 00007f629c5017c0(0000) GS:ffff98142c700000(0000) knlGS:0000000000000000\n[ 4562.099534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4562.099536] CR2: 00007f629a882000 CR3: 000000017019e004 CR4: 00000000003706f0\n[ 4562.099541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 4562.099542] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 4562.099544] Call Trace:\n[ 4562.099555] \n[ 4562.099573] ? die_addr+0x36/0x90\n[ 4562.099583] ? exc_general_protection+0x246/0x4a0\n[ 4562.099593] ? asm_exc_general_protection+0x26/0x30\n[ 4562.099600] ? nvkm_object_search+0x1d/0x70 [nouveau]\n[ 4562.099730] nvkm_ioctl+0xa1/0x250 [nouveau]\n[ 4562.099861] nvif_object_map_handle+0xc8/0x180 [nouveau]\n[ 4562.099986] nouveau_ttm_io_mem_reserve+0x122/0x270 [nouveau]\n[ 4562.100156] ? dma_resv_test_signaled+0x26/0xb0\n[ 4562.100163] ttm_bo_vm_fault_reserved+0x97/0x3c0 [ttm]\n[ 4562.100182] ? __mutex_unlock_slowpath+0x2a/0x270\n[ 4562.100189] nouveau_ttm_fault+0x69/0xb0 [nouveau]\n[ 4562.100356] __do_fault+0x32/0x150\n[ 4562.100362] do_fault+0x7c/0x560\n[ 4562.100369] __handle_mm_fault+0x800/0xc10\n[ 4562.100382] handle_mm_fault+0x17c/0x3e0\n[ 4562.100388] do_user_addr_fault+0x208/0x860\n[ 4562.100395] exc_page_fault+0x7f/0x200\n[ 4562.100402] asm_exc_page_fault+0x26/0x30\n[ 4562.100412] RIP: 0033:0x9b9870\n[ 4562.100419] Code: 85 a8 f7 ff ff 8b 8d 80 f7 ff ff 89 08 e9 18 f2 ff ff 0f 1f 84 00 00 00 00 00 44 89 32 e9 90 fa ff ff 0f 1f 84 00 00 00 00 00 <44> 89 32 e9 f8 f1 ff ff 0f 1f 84 00 00 00 00 00 66 44 89 32 e9 e7\n[ 4562.100422] RSP: 002b:00007fff9ba2dc70 EFLAGS: 00010246\n[ 4562.100426] RAX: 0000000000000004 RBX: 000000000dd65e10 RCX: 000000fff0000000\n[ 4562.100428] RDX: 00007f629a882000 RSI: 00007f629a882000 RDI: 0000000000000066\n[ 4562.100432] RBP: 00007fff9ba2e570 R08: 0000000000000000 R09: 0000000123ddf000\n[ 4562.100434] R10: 0000000000000001 R11: 0000000000000246 R12: 000000007fffffff\n[ 4562.100436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n[ 4562.100446] \n[ 4562.100448] Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink cmac bnep sunrpc iwlmvm intel_rapl_msr intel_rapl_common snd_sof_pci_intel_cnl x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_hda_common mac80211 coretemp snd_soc_acpi_intel_match kvm_intel snd_soc_acpi snd_soc_hdac_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof_intel_hda_mlink \n---truncated---" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable code is reached through the nouveau DRM device node — `DRM_NOUVEAU_NVIF` ioctls on `/dev/dri/renderD128` and page faults on mmap'd GEM buffer objects. No network or physical component is involved.\nAC:L - The attacker controls both sides of the race entirely within their own process — one thread issuing NVIF object NEW/DEL ioctls while another touches mmap'd VRAM BOs to drive `nouveau_ttm_io_mem_reserve()` → `nvkm_object_search()`; the three paths hold three different locks so no serialization exists. The race was hit unintentionally by a normal `deqp-vk` conformance run, confirming the window is trivially wide.\nPR:L - Only an open file descriptor on the nouveau render node is required; nouveau advertises `DRIVER_RENDER` and `nouveau_drm_ioctl()` dispatches the NVIF ioctl before `drm_ioctl()`, so not even DRM_AUTH/DRM_MASTER is checked. Any local user with GPU access — a normal desktop session user, an Android app, or a container with the render node exposed — qualifies.\nUI:N - The attacking process performs all steps itself: opening the render node, allocating and mmap'ing buffer objects, and spawning the racing threads. No victim action is needed.\nS:U - Corruption is confined to kernel memory within the same security authority; this is a standard local kernel privilege-escalation surface with no VM, IOMMU, or sandbox boundary crossed.\nC:H - A torn rb-tree traversal dereferences attacker-influenceable wild pointers (`rb_entry()` on garbage `node`), and a lookup that \"succeeds\" on a stale node returns a wrong/freed `nvkm_object` that `nvkm_ioctl_path()` then reads (`object->route`, `object->token`) and uses for `nvkm_ioctl_rd`, yielding arbitrary kernel-memory and MMIO disclosure.\nI:H - Unserialized concurrent `rb_insert_color()`/`rb_erase()` rebalancing writes through pointers of a corrupted tree, and a bogus object returned to `nvkm_ioctl_path()` is dispatched via `object->func->mthd/wr32/map` — an indirect call through a function pointer in potentially freed memory, giving control-flow hijack and arbitrary write potential.\nA:H - The reported failure is an immediately reproducible general protection fault on a non-canonical address in `nvkm_object_search()`, killing the task and leaving the GPU/kernel in an inconsistent state; it can be triggered repeatedly by any local user with render-node access." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/nouveau/include/nvkm/core/client.h", "drivers/gpu/drm/nouveau/nvkm/core/client.c", "drivers/gpu/drm/nouveau/nvkm/core/object.c" ], "versions": [ { "version": "bf81df9be28657eea4aca8c6ab4ed3e69f8a051c", "lessThan": "6887314f5356389fc219b8152e951ac084a10ef7", "status": "affected", "versionType": "git" }, { "version": "bf81df9be28657eea4aca8c6ab4ed3e69f8a051c", "lessThan": "96c8751844171af4b3898fee3857ee180586f589", "status": "affected", "versionType": "git" }, { "version": "bf81df9be28657eea4aca8c6ab4ed3e69f8a051c", "lessThan": "b7cc4ff787a572edf2c55caeffaa88cd801eb135", "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/nouveau/include/nvkm/core/client.h", "drivers/gpu/drm/nouveau/nvkm/core/client.c", "drivers/gpu/drm/nouveau/nvkm/core/object.c" ], "versions": [ { "version": "4.3", "status": "affected" }, { "version": "0", "lessThan": "4.3", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.24", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.12", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8", "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:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.6.24" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.7.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3", "versionEndExcluding": "6.8" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6887314f5356389fc219b8152e951ac084a10ef7" }, { "url": "https://git.kernel.org/stable/c/96c8751844171af4b3898fee3857ee180586f589" }, { "url": "https://git.kernel.org/stable/c/b7cc4ff787a572edf2c55caeffaa88cd801eb135" } ], "title": "nouveau: lock the client object tree.", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-06T18:29:48.801156Z", "id": "CVE-2024-27062", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-05T16:56:45.613Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.884Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/6887314f5356389fc219b8152e951ac084a10ef7", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/96c8751844171af4b3898fee3857ee180586f589", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/b7cc4ff787a572edf2c55caeffaa88cd801eb135", "tags": [ "x_transferred" ] } ] } ] } }