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CVSS: -EPSS: 0%CPEs: 6EXPL: 0

CVE-2021-47490 – drm/ttm: fix memleak in ttm_transfered_destroy

https://notcve.org/view.php?id=CVE-2021-47490

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447 En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/ttm: corrige memleak en ttm_transfered_destroy También necesitamos limpiar las barreras para detectar objetos fantasma. Error: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Error: https://bugzilla.kernel.org/show_bug.cgi? • https://git.kernel.org/stable/c/bd99782f3ca491879e8524c89b1c0f40071903bd https://git.kernel.org/stable/c/960b1fdfc39aba8f41e9e27b2de0c925c74182d9 https://git.kernel.org/stable/c/c21b4002214c1c7e7b627b9b53375612f7aab6db https://git.kernel.org/stable/c/bbc920fb320f1c241cc34ac85edaa0058922246a https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5 •

CVSS: -EPSS: 0%CPEs: 8EXPL: 0

CVE-2021-47480 – scsi: core: Put LLD module refcnt after SCSI device is released

https://notcve.org/view.php?id=CVE-2021-47480

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: core: colocar el módulo LLD refcnt después de liberar el dispositivo SCSI. La liberación del host SCSI se activa cuando se libera el dispositivo SCSI. Tenemos que asegurarnos de que el módulo del controlador de dispositivo de bajo nivel no se descargue antes de que se lance la instancia del host SCSI porque se requiere shost->hostt en el controlador de lanzamiento. • https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813 https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428 https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0 https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836 https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e •

CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0

CVE-2021-47478 – isofs: Fix out of bound access for corrupted isofs image

https://notcve.org/view.php?id=CVE-2021-47478

In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: isofs: corrige el acceso fuera de los límites para una imagen isofs corrupta. Cuando la imagen isofs está adecuadamente dañada, isofs_read_inode() puede leer datos más allá del final del búfer. Cordura: verifique la longitud de la entrada del directorio antes de usarla. • https://git.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f https://git.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57e https://git.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761f https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1 https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5 https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7 https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945 https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30c • CWE-125: Out-of-bounds Read •

CVSS: 5.3EPSS: 0%CPEs: 9EXPL: 0

CVE-2021-47477 – comedi: dt9812: fix DMA buffers on stack

https://notcve.org/view.php?id=CVE-2021-47477

In the Linux kernel, the following vulnerability has been resolved: comedi: dt9812: fix DMA buffers on stack USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data. Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: comedi: dt9812: corrige los búferes DMA en la pila Los búferes de transferencia USB generalmente están asignados para DMA y no deben asignarse en la pila o las transferencias fallarán. Asigne búferes de transferencia adecuados en los distintos asistentes de comando y devuelva un error en transferencias cortas en lugar de actuar sobre datos de pila aleatorios. Tenga en cuenta que esto también soluciona una fuga de información de la pila en sistemas donde no se usa DMA, ya que siempre se envían 32 bytes al dispositivo, independientemente de cuán corto sea el comando. • https://git.kernel.org/stable/c/63274cd7d38a3322d90b66a5bc976de1fb899051 https://git.kernel.org/stable/c/a6af69768d5cb4b2528946d53be5fa19ade37723 https://git.kernel.org/stable/c/365a346cda82f51d835c49136a00a9df8a78c7f2 https://git.kernel.org/stable/c/8a52bc480992c7c9da3ebfea456af731f50a4b97 https://git.kernel.org/stable/c/39ea61037ae78f14fa121228dd962ea3280eacf3 https://git.kernel.org/stable/c/3efb7af8ac437085b6c776e5b54830b149d86efe https://git.kernel.org/stable/c/786f5b03450454557ff858a8bead5d7c0cbf78d6 https://git.kernel.org/stable/c/3ac273d154d634e2034508a14db82a95d •

CVSS: -EPSS: 0%CPEs: 9EXPL: 0

CVE-2021-47475 – comedi: vmk80xx: fix transfer-buffer overflows

https://notcve.org/view.php?id=CVE-2021-47475

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix transfer-buffer overflows The driver uses endpoint-sized USB transfer buffers but up until recently had no sanity checks on the sizes. Commit e1f13c879a7c ("staging: comedi: check validity of wMaxPacketSize of usb endpoints found") inadvertently fixed NULL-pointer dereferences when accessing the transfer buffers in case a malicious device has a zero wMaxPacketSize. Make sure to allocate buffers large enough to handle also the other accesses that are done without a size check (e.g. byte 18 in vmk80xx_cnt_insn_read() for the VMK8061_MODEL) to avoid writing beyond the buffers, for example, when doing descriptor fuzzing. The original driver was for a low-speed device with 8-byte buffers. Support was later added for a device that uses bulk transfers and is presumably a full-speed device with a maximum 64-byte wMaxPacketSize. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: comedi: vmk80xx: corrige desbordamientos del búfer de transferencia El controlador utiliza búferes de transferencia USB del tamaño de un terminal, pero hasta hace poco no tenía controles de cordura sobre los tamaños. el commit e1f13c879a7c ("staging: comedi: verificar la validez de wMaxPacketSize de los endpoints USB encontrados") corrigió inadvertidamente las desreferencias de puntero NULL al acceder a los buffers de transferencia en caso de que un dispositivo malicioso tenga un wMaxPacketSize cero. Asegúrese de asignar buffers lo suficientemente grandes para manejar también los otros accesos que se realizan sin una verificación de tamaño (por ejemplo, el byte 18 en vmk80xx_cnt_insn_read() para VMK8061_MODEL) para evitar escribir más allá de los buffers, por ejemplo, cuando se realiza una confusión de descriptores. El controlador original era para un dispositivo de baja velocidad con buffers de 8 bytes. Posteriormente se agregó soporte para un dispositivo que utiliza transferencias masivas y presumiblemente es un dispositivo de velocidad completa con un wMaxPacketSize máximo de 64 bytes. • https://git.kernel.org/stable/c/985cafccbf9b7f862aa1c5ee566801e18b5161fb https://git.kernel.org/stable/c/5229159f1d052821007aff1a1beb7873eacf1a9f https://git.kernel.org/stable/c/ec85bcff4ed09260243d8f39faba99e1041718ba https://git.kernel.org/stable/c/40d2a7e278e2e7c0a5fd7e997e7eb63945bf93f7 https://git.kernel.org/stable/c/7a2021b896de1ad559d33b5c5cdd20b982242088 https://git.kernel.org/stable/c/199acd8c110e3ae62833c24f632b0bb1c9f012a9 https://git.kernel.org/stable/c/33d7a470730dfe7c9bfc8da84575cf2cedd60d00 https://git.kernel.org/stable/c/278484ae93297b1bb1ce755f9d3b6d95a •