CVE-2025-21688

{"id": "CVE-2025-21688", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}]}, "published": "2025-02-10T16:15:38.323", "references": [{"url": "https://git.kernel.org/stable/c/01a7e3a43ee2e6607169a75889412344c10b37fd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1f66a3a1a516e4d545906916b3f3c8d1c5e909e6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3059e7aaa280daea57bb069fbc65225e1bb95014", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/431fb709db434565b5e7cee82a11bd681a794fd3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6cfafcad46e95351c477da0ae7e3acb8f7550ada", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6e64d6b3a3c39655de56682ec83e894978d23412", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9793206fbf5293534c3a79d78f196e2cbb48c22d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a9401cd5d1bb5a0b8d2bef09623ca43551cd6e8a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Assign job pointer to NULL before signaling the fence\n\nIn commit e4b5ccd392b9 (\"drm/v3d: Ensure job pointer is set to NULL\nafter job completion\"), we introduced a change to assign the job pointer\nto NULL after completing a job, indicating job completion.\n\nHowever, this approach created a race condition between the DRM\nscheduler workqueue and the IRQ execution thread. As soon as the fence is\nsignaled in the IRQ execution thread, a new job starts to be executed.\nThis results in a race condition where the IRQ execution thread sets the\njob pointer to NULL simultaneously as the `run_job()` function assigns\na new job to the pointer.\n\nThis race condition can lead to a NULL pointer dereference if the IRQ\nexecution thread sets the job pointer to NULL after `run_job()` assigns\nit to the new job. When the new job completes and the GPU emits an\ninterrupt, `v3d_irq()` is triggered, potentially causing a crash.\n\n[ 466.310099] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0\n[ 466.318928] Mem abort info:\n[ 466.321723] ESR = 0x0000000096000005\n[ 466.325479] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 466.330807] SET = 0, FnV = 0\n[ 466.333864] EA = 0, S1PTW = 0\n[ 466.337010] FSC = 0x05: level 1 translation fault\n[ 466.341900] Data abort info:\n[ 466.344783] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000\n[ 466.350285] CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[ 466.355350] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 466.360677] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000089772000\n[ 466.367140] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000\n[ 466.375875] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP\n[ 466.382163] Modules linked in: rfcomm snd_seq_dummy snd_hrtimer snd_seq snd_seq_device algif_hash algif_skcipher af_alg bnep binfmt_misc vc4 snd_soc_hdmi_codec drm_display_helper cec brcmfmac_wcc spidev rpivid_hevc(C) drm_client_lib brcmfmac hci_uart drm_dma_helper pisp_be btbcm brcmutil snd_soc_core aes_ce_blk v4l2_mem2mem bluetooth aes_ce_cipher snd_compress videobuf2_dma_contig ghash_ce cfg80211 gf128mul snd_pcm_dmaengine videobuf2_memops ecdh_generic sha2_ce ecc videobuf2_v4l2 snd_pcm v3d sha256_arm64 rfkill videodev snd_timer sha1_ce libaes gpu_sched snd videobuf2_common sha1_generic drm_shmem_helper mc rp1_pio drm_kms_helper raspberrypi_hwmon spi_bcm2835 gpio_keys i2c_brcmstb rp1 raspberrypi_gpiomem rp1_mailbox rp1_adc nvmem_rmem uio_pdrv_genirq uio i2c_dev drm ledtrig_pattern drm_panel_orientation_quirks backlight fuse dm_mod ip_tables x_tables ipv6\n[ 466.458429] CPU: 0 UID: 1000 PID: 2008 Comm: chromium Tainted: G C 6.13.0-v8+ #18\n[ 466.467336] Tainted: [C]=CRAP\n[ 466.470306] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)\n[ 466.476157] pstate: 404000c9 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 466.483143] pc : v3d_irq+0x118/0x2e0 [v3d]\n[ 466.487258] lr : __handle_irq_event_percpu+0x60/0x228\n[ 466.492327] sp : ffffffc080003ea0\n[ 466.495646] x29: ffffffc080003ea0 x28: ffffff80c0c94200 x27: 0000000000000000\n[ 466.502807] x26: ffffffd08dd81d7b x25: ffffff80c0c94200 x24: ffffff8003bdc200\n[ 466.509969] x23: 0000000000000001 x22: 00000000000000a7 x21: 0000000000000000\n[ 466.517130] x20: ffffff8041bb0000 x19: 0000000000000001 x18: 0000000000000000\n[ 466.524291] x17: ffffffafadfb0000 x16: ffffffc080000000 x15: 0000000000000000\n[ 466.531452] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n[ 466.538613] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffffd08c527eb0\n[ 466.545777] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n[ 466.552941] x5 : ffffffd08c4100d0 x4 : ffffffafadfb0000 x3 : ffffffc080003f70\n[ 466.560102] x2 : ffffffc0829e8058 x1 : 0000000000000001 x0 : 0000000000000000\n[ 466.567263] Call trace:\n[ 466.569711] v3d_irq+0x118/0x2e0 [v3d] (P)\n[ 466.\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/v3d: Asignar puntero de trabajo a NULL antes de se\u00f1alar la valla En el commit e4b5ccd392b9 (\"drm/v3d: Asegurarse de que el puntero de trabajo est\u00e9 establecido en NULL despu\u00e9s de la finalizaci\u00f3n del trabajo\"), introdujimos un cambio para asignar el puntero de trabajo a NULL despu\u00e9s de completar un trabajo, lo que indica la finalizaci\u00f3n del trabajo. Sin embargo, este enfoque cre\u00f3 una condici\u00f3n de ejecuci\u00f3n entre la cola de trabajo del programador DRM y el hilo de ejecuci\u00f3n de IRQ. Tan pronto como se se\u00f1ala la valla en el hilo de ejecuci\u00f3n de IRQ, comienza a ejecutarse un nuevo trabajo. Esto da como resultado una condici\u00f3n de ejecuci\u00f3n donde el hilo de ejecuci\u00f3n de IRQ establece el puntero de trabajo en NULL simult\u00e1neamente mientras la funci\u00f3n `run_job()` asigna un nuevo trabajo al puntero. Esta condici\u00f3n de ejecuci\u00f3n puede conducir a una desreferencia de puntero NULL si el hilo de ejecuci\u00f3n de IRQ establece el puntero de trabajo en NULL despu\u00e9s de que `run_job()` lo asigne al nuevo trabajo. Cuando se completa el nuevo trabajo y la GPU emite una interrupci\u00f3n, se activa `v3d_irq()`, lo que puede provocar un bloqueo. [ 466.310099] No se puede gestionar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 00000000000000c0 [ 466.318928] Mem abort info: [ 466.321723] ESR = 0x0000000096000005 [ 466.325479] EC = 0x25: DABT (current EL), IL = 32 bits [ 466.330807] SET = 0, FnV = 0 [ 466.333864] EA = 0, S1PTW = 0 [ 466.337010] FSC = 0x05: level 1 translation fault [ 466.341900] Data abort info: [ 466.344783] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 466.350285] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 466.355350] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 466.360677] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000089772000 [ 466.367140] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 466.375875] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 466.382163] Modules linked in: rfcomm snd_seq_dummy snd_hrtimer snd_seq snd_seq_device algif_hash algif_skcipher af_alg bnep binfmt_misc vc4 snd_soc_hdmi_codec drm_display_helper cec brcmfmac_wcc spidev rpivid_hevc(C) drm_client_lib brcmfmac hci_uart drm_dma_helper pisp_be btbcm brcmutil snd_soc_core aes_ce_blk v4l2_mem2mem bluetooth aes_ce_cipher snd_compress videobuf2_dma_contig ghash_ce cfg80211 gf128mul snd_pcm_dmaengine videobuf2_memops ecdh_generic sha2_ce ecc videobuf2_v4l2 snd_pcm v3d sha256_arm64 rfkill videodev snd_timer sha1_ce libaes gpu_sched snd videobuf2_common sha1_generic drm_shmem_helper mc rp1_pio drm_kms_helper raspberrypi_hwmon spi_bcm2835 gpio_keys i2c_brcmstb rp1 raspberrypi_gpiomem rp1_mailbox rp1_adc nvmem_rmem uio_pdrv_genirq uio i2c_dev drm ledtrig_pattern drm_panel_orientation_quirks backlight fuse dm_mod ip_tables x_tables ipv6 [ 466.458429] CPU: 0 UID: 1000 PID: 2008 Comm: chromium Tainted: G C 6.13.0-v8+ #18 [ 466.467336] Tainted: [C]=CRAP [ 466.470306] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT) [ 466.476157] pstate: 404000c9 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 466.483143] pc : v3d_irq+0x118/0x2e0 [v3d] [ 466.487258] lr : __handle_irq_event_percpu+0x60/0x228 [ 466.492327] sp : ffffffc080003ea0 [ 466.495646] x29: ffffffc080003ea0 x28: ffffff80c0c94200 x27: 0000000000000000 [ 466.502807] x26: ffffffd08dd81d7b x25: ffffff80c0c94200 x24: ffffff8003bdc200 [ 466.509969] x23: 0000000000000001 x22: 00000000000000a7 x21: 0000000000000000 [ 466.517130] x20: ffffff8041bb0000 x19: 0000000000000001 x18: 0000000000000000 [ 466.524291] x17: ffffffafadfb0000 x16: ffffffc080000000 x15: 0000000000000000 [ 466.531452] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 466.538613] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffffd08c527eb0 [ 466.545777] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 [ 466.552941] x5 : ffffffd08c4100d0 x4 : ffffffafadfb0000 x3 : ffffffc080003f70 ---truncated--- "}], "lastModified": "2025-02-21T16:41:20.307", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:5.15.177:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE9C4B84-1FEC-4D82-AC35-E594761500D0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1.127:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A0E0350D-E1FE-4994-B7D0-FA7D6AEEDEFB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.6.74:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0E8CEC5F-9110-4276-B1F1-7DF988D6881A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12.11:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90CCED07-28C6-4CE1-97F4-11CBB0C39972"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5A3F9505-6B98-4269-8B81-127E55A1BF00"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}