CVE-2026-43229

{"id": "CVE-2026-43229", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9707a6254a8a6b978bde811a44fe07d86c229d1c", "lessThan": "b73d85231d5b1400a4fa5046cdac6c4d7cc6d969", "versionType": "git"}, {"status": "affected", "version": "9707a6254a8a6b978bde811a44fe07d86c229d1c", "lessThan": "526816f2e331954d80fed8b37fa94efbbdde2b8d", "versionType": "git"}, {"status": "affected", "version": "9707a6254a8a6b978bde811a44fe07d86c229d1c", "lessThan": "dc2b7deae740a3ed138fb7ae17c97fa4055cfc5f", "versionType": "git"}, {"status": "affected", "version": "9707a6254a8a6b978bde811a44fe07d86c229d1c", "lessThan": "b74cedac643b02aefa7da881b58a3792859d9748", "versionType": "git"}], "programFiles": ["drivers/media/platform/chips-media/wave5/wave5-vpu.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"status": "unaffected", "version": "0", "lessThan": "6.8", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.16", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.6", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/media/platform/chips-media/wave5/wave5-vpu.c"], "defaultStatus": "affected"}]}], "published": "2026-05-06T12:16:42.830", "references": [{"url": "https://git.kernel.org/stable/c/526816f2e331954d80fed8b37fa94efbbdde2b8d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b73d85231d5b1400a4fa5046cdac6c4d7cc6d969", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b74cedac643b02aefa7da881b58a3792859d9748", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dc2b7deae740a3ed138fb7ae17c97fa4055cfc5f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix device cleanup order to prevent kernel panic\n\nMove video device unregistration to the beginning of the remove function\nto ensure all video operations are stopped before cleaning up the worker\nthread and disabling PM runtime. This prevents hardware register access\nafter the device has been powered down.\n\nIn polling mode, the hrtimer periodically triggers\nwave5_vpu_timer_callback() which queues work to the kthread worker.\nThe worker executes wave5_vpu_irq_work_fn() which reads hardware\nregisters via wave5_vdi_read_register().\n\nThe original cleanup order disabled PM runtime and powered down hardware\nbefore unregistering video devices. When autosuspend triggers and powers\noff the hardware, the video devices are still registered and the worker\nthread can still be triggered by the hrtimer, causing it to attempt\nreading registers from powered-off hardware. This results in a bus error\n(synchronous external abort) and kernel panic.\n\nThis causes random kernel panics during encoding operations:\n\n Internal error: synchronous external abort: 0000000096000010\n [#1] PREEMPT SMP\n Modules linked in: wave5 rpmsg_ctrl rpmsg_char ...\n CPU: 0 UID: 0 PID: 1520 Comm: vpu_irq_thread\n Tainted: G M W\n pc : wave5_vdi_read_register+0x10/0x38 [wave5]\n lr : wave5_vpu_irq_work_fn+0x28/0x60 [wave5]\n Call trace:\n wave5_vdi_read_register+0x10/0x38 [wave5]\n kthread_worker_fn+0xd8/0x238\n kthread+0x104/0x120\n ret_from_fork+0x10/0x20\n Code: aa1e03e9 d503201f f9416800 8b214000 (b9400000)\n ---[ end trace 0000000000000000 ]---\n Kernel panic - not syncing: synchronous external abort:\n Fatal exception"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: chips-media: wave5: Corregir el orden de limpieza del dispositivo para prevenir un kernel panic\n\nMover el desregistro del dispositivo de video al principio de la funci\u00f3n de eliminaci\u00f3n para asegurar que todas las operaciones de video se detengan antes de limpiar el hilo de trabajo y deshabilitar el PM runtime. Esto previene el acceso a registros de hardware despu\u00e9s de que el dispositivo ha sido apagado.\n\nEn modo de sondeo, el hrtimer dispara peri\u00f3dicamente wave5_vpu_timer_callback() que encola trabajo al trabajador kthread. El trabajador ejecuta wave5_vpu_irq_work_fn() que lee registros de hardware a trav\u00e9s de wave5_vdi_read_register().\n\nEl orden de limpieza original deshabilitaba el PM runtime y apagaba el hardware antes de desregistrar los dispositivos de video. Cuando el autosuspender se activa y apaga el hardware, los dispositivos de video a\u00fan est\u00e1n registrados y el hilo de trabajo a\u00fan puede ser disparado por el hrtimer, haciendo que intente leer registros de hardware apagado. Esto resulta en un error de bus (aborto externo s\u00edncrono) y kernel panic.\n\nEsto causa kernel panics aleatorios durante operaciones de codificaci\u00f3n:\n\n Error interno: aborto externo s\u00edncrono: 0000000096000010\n [#1] PREEMPT SMP\n M\u00f3dulos enlazados: wave5 rpmsg_ctrl rpmsg_char ...\n CPU: 0 UID: 0 PID: 1520 Comm: vpu_irq_thread\n Tainted: G M W\n pc : wave5_vdi_read_register+0x10/0x38 [wave5]\n lr : wave5_vpu_irq_work_fn+0x28/0x60 [wave5]\n Traza de llamada:\n wave5_vdi_read_register+0x10/0x38 [wave5]\n kthread_worker_fn+0xd8/0x238\n kthread+0x104/0x120\n ret_from_fork+0x10/0x20\n C\u00f3digo: aa1e03e9 d503201f f9416800 8b214000 (b9400000)\n ---[ fin de traza 0000000000000000 ]---\n Kernel panic - no sincronizando: aborto externo s\u00edncrono:\n Excepci\u00f3n fatal"}], "lastModified": "2026-11-11T20:10:00.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A94C3E7-EF78-4AF2-8160-DDF77E97D5EE", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}