CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47525 – serial: liteuart: fix use-after-free and memleak on unbind
https://notcve.org/view.php?id=CVE-2021-47525
In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: fix use-after-free and memleak on unbind Deregister the port when unbinding the driver to prevent it from being used after releasing the driver data and leaking memory allocated by serial core. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: liteuart: corrige use-after-free y memleak al desvincular. Cancelar el registro del puerto al desvincular el controlador para evitar que se use después de liberar los datos del controlador y pérdida de memoria asignada por el núcleo serie. • https://git.kernel.org/stable/c/1da81e5562fac8286567422cc56a7fbd0dc646d4 https://git.kernel.org/stable/c/602824cf9aa9db8830ffe5cfb2cd54365cada4fe https://git.kernel.org/stable/c/05f929b395dec8957b636ff14e66b277ed022ed9 • CWE-416: Use After Free •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47524 – serial: liteuart: fix minor-number leak on probe errors
https://notcve.org/view.php?id=CVE-2021-47524
In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: fix minor-number leak on probe errors Make sure to release the allocated minor number before returning on probe errors. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: serial: liteuart: corrige la fuga de números menores en errores de sonda. Asegúrese de liberar el número menor asignado antes de regresar por errores de sonda. • https://git.kernel.org/stable/c/1da81e5562fac8286567422cc56a7fbd0dc646d4 https://git.kernel.org/stable/c/888fc81107cacd2a4f681bac7bb785cef868214f https://git.kernel.org/stable/c/dd5e90b16cca8a697cbe17b72e2a5f49291cabb2 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47523 – IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
https://notcve.org/view.php?id=CVE-2021-47523
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in hfi1_init(): if (reinit) ret = init_after_reset(dd); else ret = loadtime_init(dd); if (ret) goto done; /* allocate dummy tail memory for all receive contexts */ dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); if (!dd->rcvhdrtail_dummy_kvaddr) { dd_dev_err(dd, "cannot allocate dummy tail memory\n"); ret = -ENOMEM; goto done; } The reinit triggered path will overwrite the old allocation and leak it. Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation to hfi1_free_devdata(). En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/hfi1: Corrección de fuga de rcvhdrtail_dummy_kvaddr. Este búfer está actualmente asignado en hfi1_init(): if (reinit) ret = init_after_reset(dd); de lo contrario ret = loadtime_init(dd); si (ret) ir a hecho; /* asigna memoria de cola ficticia para todos los contextos de recepción */ dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); if (!dd->rcvhdrtail_dummy_kvaddr) { dd_dev_err(dd, "no se puede asignar memoria de cola ficticia\n"); ret = -ENOMEM; ir a hacer; } La ruta activada por reinicio sobrescribirá la asignación anterior y la filtrará. • https://git.kernel.org/stable/c/46b010d3eeb8eb29c740c4ef09c666485f5c07e6 https://git.kernel.org/stable/c/2c08271f4ed0e24633b3f81ceff61052b9d45efc https://git.kernel.org/stable/c/834d0fb978643eaf09da425de197cc16a7c2761b https://git.kernel.org/stable/c/60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47522 – HID: bigbenff: prevent null pointer dereference
https://notcve.org/view.php?id=CVE-2021-47522
In the Linux kernel, the following vulnerability has been resolved: HID: bigbenff: prevent null pointer dereference When emulating the device through uhid, there is a chance we don't have output reports and so report_field is null. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HID: bigbenff: evita la desreferencia del puntero nulo Al emular el dispositivo a través de uhid, existe la posibilidad de que no tengamos informes de salida y, por lo tanto, report_field sea nulo. • https://git.kernel.org/stable/c/8e0ceff632f48175ec7fb4706129c55ca8a7c7bd https://git.kernel.org/stable/c/6272b17001e6fdcf7b4a16206287010a1523fa6e https://git.kernel.org/stable/c/58f15f5ae7786c824868f3a7e093859b74669ce7 https://git.kernel.org/stable/c/918aa1ef104d286d16b9e7ef139a463ac7a296f0 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47521 – can: sja1000: fix use after free in ems_pcmcia_add_card()
https://notcve.org/view.php?id=CVE-2021-47521
In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: sja1000: arreglar el use after free en ems_pcmcia_add_card() Si el último canal no está disponible entonces se libera "dev". Afortunadamente, podemos usar "pdev->irq" en su lugar. También debemos comprobar si se configuró al menos un canal. • https://git.kernel.org/stable/c/fd734c6f25aea4b2b44b045e489aec67b388577e https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4 https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36 https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288 https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e • CWE-416: Use After Free •