CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47233 – regulator: rt4801: Fix NULL pointer dereference if priv->enable_gpios is NULL
https://notcve.org/view.php?id=CVE-2021-47233
In the Linux kernel, the following vulnerability has been resolved: regulator: rt4801: Fix NULL pointer dereference if priv->enable_gpios is NULL devm_gpiod_get_array_optional may return NULL if no GPIO was assigned. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: regulador: rt4801: corrige la desreferencia del puntero NULL si priv->enable_gpios es NULL, devm_gpiod_get_array_optional puede devolver NULL si no se asignó ningún GPIO. • https://git.kernel.org/stable/c/ba8a26a7ce8617f9f3d6230de34b2302df086b41 https://git.kernel.org/stable/c/dc68f0c9e4a001e02376fe87f4bdcacadb27e8a1 https://git.kernel.org/stable/c/cb2381cbecb81a8893b2d1e1af29bc2e5531df27 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47229 – PCI: aardvark: Fix kernel panic during PIO transfer
https://notcve.org/view.php?id=CVE-2021-47229
In the Linux kernel, the following vulnerability has been resolved: PCI: aardvark: Fix kernel panic during PIO transfer Trying to start a new PIO transfer by writing value 0 in PIO_START register when previous transfer has not yet completed (which is indicated by value 1 in PIO_START) causes an External Abort on CPU, which results in kernel panic: SError Interrupt on CPU0, code 0xbf000002 -- SError Kernel panic - not syncing: Asynchronous SError Interrupt To prevent kernel panic, it is required to reject a new PIO transfer when previous one has not finished yet. If previous PIO transfer is not finished yet, the kernel may issue a new PIO request only if the previous PIO transfer timed out. In the past the root cause of this issue was incorrectly identified (as it often happens during link retraining or after link down event) and special hack was implemented in Trusted Firmware to catch all SError events in EL3, to ignore errors with code 0xbf000002 and not forwarding any other errors to kernel and instead throw panic from EL3 Trusted Firmware handler. Links to discussion and patches about this issue: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=3c7dcdac5c50 https://lore.kernel.org/linux-pci/20190316161243.29517-1-repk@triplefau.lt/ https://lore.kernel.org/linux-pci/971be151d24312cc533989a64bd454b4@www.loen.fr/ https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/1541 But the real cause was the fact that during link retraining or after link down event the PIO transfer may take longer time, up to the 1.44s until it times out. This increased probability that a new PIO transfer would be issued by kernel while previous one has not finished yet. After applying this change into the kernel, it is possible to revert the mentioned TF-A hack and SError events do not have to be caught in TF-A EL3. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: PCI: aardvark: solucionó el pánico del kernel durante la transferencia de PIO. Intentar iniciar una nueva transferencia de PIO escribiendo el valor 0 en el registro PIO_START cuando la transferencia anterior aún no se ha completado (que se indica con el valor 1). en PIO_START) provoca un aborto externo en la CPU, lo que resulta en pánico del kernel: Interrupción de SError en CPU0, código 0xbf000002 - Pánico del kernel de SError - no se sincroniza: Interrupción de SError asincrónica Para evitar el pánico del kernel, es necesario rechazar una nueva transferencia de PIO cuando el anterior aún no ha terminado. • https://git.kernel.org/stable/c/400e6b1860c8be61388d0b77814c53260f96e17a https://git.kernel.org/stable/c/b00a9aaa4be20ad6e3311fb78a485eae0899e89a https://git.kernel.org/stable/c/4c90f90a91d75c3c73dd633827c90e8746d9f54d https://git.kernel.org/stable/c/1a1dbc4473974867fe8c5f195c17b341c8e82867 https://git.kernel.org/stable/c/3d213a4ddf49a860be6e795482c17f87e0c82b2a https://git.kernel.org/stable/c/f18139966d072dab8e4398c95ce955a9742e04f7 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47224 – net: ll_temac: Make sure to free skb when it is completely used
https://notcve.org/view.php?id=CVE-2021-47224
In the Linux kernel, the following vulnerability has been resolved: net: ll_temac: Make sure to free skb when it is completely used With the skb pointer piggy-backed on the TX BD, we have a simple and efficient way to free the skb buffer when the frame has been transmitted. But in order to avoid freeing the skb while there are still fragments from the skb in use, we need to piggy-back on the TX BD of the skb, not the first. Without this, we are doing use-after-free on the DMA side, when the first BD of a multi TX BD packet is seen as completed in xmit_done, and the remaining BDs are still being processed. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net:ll_temac: Asegúrate de liberar skb cuando esté completamente utilizado. Con el puntero skb acoplado en la BD TX, tenemos una forma sencilla y eficaz de liberar el buffer skb. cuando la trama ha sido transmitida. Pero para evitar liberar el skb mientras todavía hay fragmentos del skb en uso, debemos aprovechar el BD TX del skb, no el primero. Sin esto, estamos haciendo use after free en el lado DMA, cuando el primer BD de un paquete BD de transmisión múltiple se considera completado en xmit_done y los BD restantes todavía se están procesando. • https://git.kernel.org/stable/c/6d120ab4dc39a543c6b63361e1d0541c382900a3 https://git.kernel.org/stable/c/019ab7d044d0ebf97e1236bb8935b7809be92358 https://git.kernel.org/stable/c/e8afe05bd359ebe12a61dbdc94c06c00ea3e8d4b https://git.kernel.org/stable/c/6aa32217a9a446275440ee8724b1ecaf1838df47 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35999 – smb3: missing lock when picking channel
https://notcve.org/view.php?id=CVE-2024-35999
In the Linux kernel, the following vulnerability has been resolved: smb3: missing lock when picking channel Coverity spotted a place where we should have been holding the channel lock when accessing the ses channel index. Addresses-Coverity: 1582039 ("Data race condition (MISSING_LOCK)") En el kernel de Linux, se resolvió la siguiente vulnerabilidad: smb3: falta el bloqueo al seleccionar el canal. Coverity detectó un lugar donde deberíamos haber mantenido el bloqueo del canal al acceder al índice del canal ses. Direcciones-Cobertura: 1582039 ("Condición de ejecución de datos (MISSING_LOCK)") • https://git.kernel.org/stable/c/98c7ed29cd754ae7475dc7cb3f33399fda902729 https://git.kernel.org/stable/c/0fcf7e219448e937681216353c9a58abae6d3c2e https://git.kernel.org/stable/c/60ab245292280905603bc0d3654f4cf8fceccb00 https://git.kernel.org/stable/c/8094a600245e9b28eb36a13036f202ad67c1f887 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35998 – smb3: fix lock ordering potential deadlock in cifs_sync_mid_result
https://notcve.org/view.php?id=CVE-2024-35998
In the Linux kernel, the following vulnerability has been resolved: smb3: fix lock ordering potential deadlock in cifs_sync_mid_result Coverity spotted that the cifs_sync_mid_result function could deadlock "Thread deadlock (ORDER_REVERSAL) lock_order: Calling spin_lock acquires lock TCP_Server_Info.srv_lock while holding lock TCP_Server_Info.mid_lock" Addresses-Coverity: 1590401 ("Thread deadlock (ORDER_REVERSAL)") En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb3: corrige el posible interbloqueo en el orden de bloqueo en cifs_sync_mid_result Coverity detectó que la función cifs_sync_mid_result podría interbloquearse "Interbloqueo de subprocesos (ORDER_REVERSAL) lock_order: llamar a spin_lock adquiere el bloqueo TCP_Server_Info.srv_lock mientras mantiene el bloqueo TCP_Server_Info.mid_lock "Direcciones-Cobertura: 1590401 ("Estancamiento del hilo (ORDER_REVERSAL)") • https://git.kernel.org/stable/c/c7a4bca289e50bb4b2650f845c41bb3e453f4c66 https://git.kernel.org/stable/c/699f8958dece132709c0bff6a9700999a2a63b75 https://git.kernel.org/stable/c/8248224ab5b8ca7559b671917c224296a4d671fc https://git.kernel.org/stable/c/8861fd5180476f45f9e8853db154600469a0284f •