{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-30T08:44:19.725","vulnerabilities":[{"cve":{"id":"CVE-2024-49942","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-10-21T18:15:15.843","lastModified":"2024-10-25T14:56:59.397","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Prevent null pointer access in xe_migrate_copy\n\nxe_migrate_copy designed to copy content of TTM resources. When source\nresource is null, it will trigger a NULL pointer dereference in\nxe_migrate_copy. To avoid this situation, update lacks source flag to\ntrue for this case, the flag will trigger xe_migrate_clear rather than\nxe_migrate_copy.\n\nIssue trace:\n<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,\n sizes: 4194304 & 4194304\n<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,\n sizes: 4194304 & 4194304\n<1> [317.128055] BUG: kernel NULL pointer dereference, address:\n 0000000000000010\n<1> [317.128064] #PF: supervisor read access in kernel mode\n<1> [317.128066] #PF: error_code(0x0000) - not-present page\n<6> [317.128069] PGD 0 P4D 0\n<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:\n G U N 6.11.0-rc7-xe #1\n<4> [317.128078] Tainted: [U]=USER, [N]=TEST\n<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client\n Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024\n<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8\n fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31\n ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff\n<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246\n<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:\n 0000000000000000\n<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:\n 0000000000000000\n<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:\n 0000000000000001\n<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:\n ffff88814e7b1f08\n<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:\n 0000000000000001\n<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)\n knlGS:0000000000000000\n<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:\n 0000000000770ef0\n<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n 0000000000000000\n<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:\n 0000000000000400\n<4> [317.128184] PKRU: 55555554\n<4> [317.128185] Call Trace:\n<4> [317.128187] \n<4> [317.128189] ? show_regs+0x67/0x70\n<4> [317.128194] ? __die_body+0x20/0x70\n<4> [317.128196] ? __die+0x2b/0x40\n<4> [317.128198] ? page_fault_oops+0x15f/0x4e0\n<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970\n<4> [317.128205] ? lock_acquire+0xc7/0x2e0\n<4> [317.128209] ? exc_page_fault+0x87/0x2b0\n<4> [317.128212] ? asm_exc_page_fault+0x27/0x30\n<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128267] ? sg_free_append_table+0x20/0x80\n<4> [317.128271] ? lock_acquire+0xc7/0x2e0\n<4> [317.128273] ? mark_held_locks+0x4d/0x80\n<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0\n<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]\n<4> [317.128315] ? lock_is_held_type+0xaa/0x120\n<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]\n<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]\n<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]\n<4> [317.128360] ? find_held_lock+0x31/0x90\n<4> [317.128363] ? lock_release+0xd1/0x2a0\n<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10\n [kunit]\n<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]\n<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]\n<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku\n---truncated---"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe: Impedir el acceso a puntero nulo en xe_migrate_copy xe_migrate_copy está diseñado para copiar el contenido de los recursos de TTM. Cuando el recurso de origen es nulo, activará una desreferencia de puntero NULL en xe_migrate_copy. Para evitar esta situación, actualice el indicador de origen a verdadero para este caso; el indicador activará xe_migrate_clear en lugar de xe_migrate_copy. Rastreo de problemas: <7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Paso 14, tamaños: 4194304 y 4194304 <7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Paso 15, tamaños: 4194304 y 4194304 <1> [317.128055] ERROR: desreferencia de puntero NULL del núcleo, dirección: 0000000000000010 <1> [317.128064] #PF: acceso de lectura del supervisor en modo núcleo <1> [317.128066] #PF: error_code(0x0000) - no presente página <6> [317.128069] PGD 0 P4D 0 <4> [317.128071] Ups: Ups: 0000 [#1] PREEMPT SMP NOPTI <4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Contaminado: G U N 6.11.0-rc7-xe #1 <4> [317.128078] Contaminado: [U]=USUARIO, [N]=PRUEBA <4> [317.128080] Nombre del hardware: Intel Corporation Lunar Lake Client Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 29/07/2024 <4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe] <4> [317.128158] Código: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8 fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31 ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff <4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246 <4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX: 0000000000000000 <4> [317.128166] X: ffff88813cb99c00 RSI: 0000000004000000 RDI: 0000000000000000 <4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09: 00000000000000001 <4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88814e7b1f08 <4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15: 0000000000000001 <4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000) knlGS:0000000000000000 <4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [317.128178] CR2: 000000000000010 CR3: 000000011f676004 CR4: 0000000000770ef0 <4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <4> [317.128182] DR3: knlGS:0000000000000000 <4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4: 0000000000770ef0 <4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400 <4> [317.128184] PKRU: 55555554 <4> [317.128185] Seguimiento de llamadas: <4> [317.128187] <4> [317.128189] ? show_regs+0x67/0x70 <4> [317.128194] ? __die_body+0x20/0x70 <4> [317.128196] ? __die+0x2b/0x40 <4> [317.128198] ? page_fault_oops+0x15f/0x4e0 <4> [317.128203] ? do_user_addr_fault+0x3fb/0x970 <4> [317.128205] ? lock_acquire+0xc7/0x2e0 <4> [317.128209]? exc_page_fault+0x87/0x2b0 <4> [317.128212] ? asm_exc_page_fault+0x27/0x30 <4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe] <4> [317.128263] ? __lock_acquire+0xb9d/0x26f0 <4> [317.128265] ? __lock_acquire+0xb9d/0x26f0 <4> [317.128267] ? sg_free_append_table+0x20/0x80 <4> [317.128271] ? lock_acquire+0xc7/0x2e0 <4> [317.128273] ? mark_held_locks+0x4d/0x80 <4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0 <4> [317.128278] ? __pm_runtime_resume+0x60/0xa0 <4> [317.128284] xe_bo_move+0x682/0xc50 [xe] <4> [317.128315] ? lock_is_held_type+0xaa/0x120 <4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm] <4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm] <4> [317.128328] +0x721/0xc10 [xe] <"}],"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}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.10.14","matchCriteriaId":"0E3AE738-A62B-4806-9D9C-933998214C6A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.11.3","matchCriteriaId":"54D9C704-D679-41A7-9C40-10A6B1E7FFE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*","matchCriteriaId":"7F361E1D-580F-4A2D-A509-7615F73167A1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/16e0267db156f8a4ea16bfb3ac3f5743c9698df3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/7257d9c9a3c6cfe26c428e9b7ae21d61f2f55a79","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8f5199b6971f0717c2d31685953971fa2e1b9e1a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}