FKIE_CVE-2025-38300

Vulnerability from fkie_nvd - Published: 2025-07-10 08:15 - Updated: 2025-12-19 17:56
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare() Fix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare(): 1] If dma_map_sg() fails for areq->dst, the device driver would try to free DMA memory it has not allocated in the first place. To fix this, on the "theend_sgs" error path, call dma unmap only if the corresponding dma map was successful. 2] If the dma_map_single() call for the IV fails, the device driver would try to free an invalid DMA memory address on the "theend_iv" path: ------------[ cut here ]------------ DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90 Modules linked in: skcipher_example(O+) CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G O 6.15.0-rc3+ #24 PREEMPT Tainted: [O]=OOT_MODULE Hardware name: OrangePi Zero2 (DT) pc : check_unmap+0x123c/0x1b90 lr : check_unmap+0x123c/0x1b90 ... Call trace: check_unmap+0x123c/0x1b90 (P) debug_dma_unmap_page+0xac/0xc0 dma_unmap_page_attrs+0x1f4/0x5fc sun8i_ce_cipher_do_one+0x1bd4/0x1f40 crypto_pump_work+0x334/0x6e0 kthread_worker_fn+0x21c/0x438 kthread+0x374/0x664 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- To fix this, check for !dma_mapping_error() before calling dma_unmap_single() on the "theend_iv" path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19d267d9fad00d94ad8477899e38ed7c11f33fb6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4051250e5db489f8ad65fc337e2677b9b568ac72Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0ac3f85b2e3ef529e852f252a70311f9029d5e6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c62b79c1c51303dbcb6edfa4de0ee176f4934c52Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0
To clipboard 

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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare()\n\nFix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare():\n\n1] If dma_map_sg() fails for areq-\u003edst, the device driver would try to free\n   DMA memory it has not allocated in the first place. To fix this, on the\n   \"theend_sgs\" error path, call dma unmap only if the corresponding dma\n   map was successful.\n\n2] If the dma_map_single() call for the IV fails, the device driver would\n   try to free an invalid DMA memory address on the \"theend_iv\" path:\n   ------------[ cut here ]------------\n   DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address\n   WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90\n   Modules linked in: skcipher_example(O+)\n   CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G           O        6.15.0-rc3+ #24 PREEMPT\n   Tainted: [O]=OOT_MODULE\n   Hardware name: OrangePi Zero2 (DT)\n   pc : check_unmap+0x123c/0x1b90\n   lr : check_unmap+0x123c/0x1b90\n   ...\n   Call trace:\n    check_unmap+0x123c/0x1b90 (P)\n    debug_dma_unmap_page+0xac/0xc0\n    dma_unmap_page_attrs+0x1f4/0x5fc\n    sun8i_ce_cipher_do_one+0x1bd4/0x1f40\n    crypto_pump_work+0x334/0x6e0\n    kthread_worker_fn+0x21c/0x438\n    kthread+0x374/0x664\n    ret_from_fork+0x10/0x20\n   ---[ end trace 0000000000000000 ]---\n\nTo fix this, check for !dma_mapping_error() before calling\ndma_unmap_single() on the \"theend_iv\" path."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: sun8i-ce-cipher - correcci\u00f3n del manejo de errores en sun8i_ce_cipher_prepare(). Se corrigen dos problemas de limpieza de DMA en la ruta de error en sun8i_ce_cipher_prepare(): 1] Si dma_map_sg() falla para areq-\u0026gt;dst, el controlador del dispositivo intentar\u00eda liberar memoria DMA que no hab\u00eda asignado inicialmente. Para corregir esto, en la ruta de error \"theend_sgs\", ejecute dma unmap solo si la asignaci\u00f3n de DMA correspondiente se realiz\u00f3 correctamente. 2] Si falla la llamada a dma_map_single() para el IV, el controlador del dispositivo intentar\u00e1 liberar una direcci\u00f3n de memoria DMA no v\u00e1lida en la ruta \"theend_iv\": ------------[ cortar aqu\u00ed ]------------ DMA-API: sun8i-ce 1904000.crypto: el controlador del dispositivo intenta liberar una direcci\u00f3n de memoria DMA no v\u00e1lida ADVERTENCIA: CPU: 2 PID: 69 en kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90 M\u00f3dulos vinculados: skcipher_example(O+) CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: GO 6.15.0-rc3+ #24 PREEMPT Tainted: [O]=OOT_MODULE Nombre del hardware: OrangePi Zero2 (DT) pc : check_unmap+0x123c/0x1b90 lr : check_unmap+0x123c/0x1b90 ... Rastreo de llamada: check_unmap+0x123c/0x1b90 (P) debug_dma_unmap_page+0xac/0xc0 dma_unmap_page_attrs+0x1f4/0x5fc sun8i_ce_cipher_do_one+0x1bd4/0x1f40 crypto_pump_work+0x334/0x6e0 kthread_worker_fn+0x21c/0x438 kthread+0x374/0x664 ret_from_fork+0x10/0x20 ---[ fin del rastreo 000000000000000 ]--- Para solucionar esto, verifique !dma_mapping_error() antes de llamar dma_unmap_single() en la ruta \"theend_iv\"."
    }
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  "id": "CVE-2025-38300",
  "lastModified": "2025-12-19T17:56:58.500",
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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        "source": "nvd@nist.gov",
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