CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-48656 – dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get()
https://notcve.org/view.php?id=CVE-2022-48656
In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get() We should call of_node_put() for the reference returned by of_parse_phandle() in fail path or when it is not used anymore. Here we only need to move the of_node_put() before the check. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dmaengine: ti: k3-udma-private: corrige el error de fuga de recuento en of_xudma_dev_get() Deberíamos llamar a of_node_put() para la referencia devuelta por of_parse_phandle() en la ruta de error o cuando ya no se usa. Aquí solo necesitamos mover of_node_put() antes de la verificación. • https://git.kernel.org/stable/c/d702419134133db1eab2067dc6ea5723467fd917 https://git.kernel.org/stable/c/aa11dae059a439af82bae541b134f8f53ac177b5 https://git.kernel.org/stable/c/dd5a6c5a08752b613e83ad2cb5133e72a64b876d https://git.kernel.org/stable/c/a17df55bf6d536712da6902a83db82b82e67d5a2 https://git.kernel.org/stable/c/f9fdb0b86f087c2b7f6c6168dd0985a3c1eda87e • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 8.1EPSS: 0%CPEs: 5EXPL: 0CVE-2022-48655 – firmware: arm_scmi: Harden accesses to the reset domains
https://notcve.org/view.php?id=CVE-2022-48655
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Harden accesses to the reset domains Accessing reset domains descriptors by the index upon the SCMI drivers requests through the SCMI reset operations interface can potentially lead to out-of-bound violations if the SCMI driver misbehave. Add an internal consistency check before any such domains descriptors accesses. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: arm_scmi: Refuerza los accesos a los dominios de reinicio. El acceso a los descriptores de dominios de reinicio por el índice ante las solicitudes de los controladores SCMI a través de la interfaz de operaciones de reinicio de SCMI puede conducir potencialmente a violaciones fuera de los límites. si el controlador SCMI se comporta mal. Agregue una verificación de coherencia interna antes de que se acceda a dichos descriptores de dominio. • https://git.kernel.org/stable/c/95a15d80aa0de938299acfcbc6aa6f2b16f5d7e5 https://git.kernel.org/stable/c/7184491fc515f391afba23d0e9b690caaea72daf https://git.kernel.org/stable/c/f2277d9e2a0d092c13bae7ee82d75432bb8b5108 https://git.kernel.org/stable/c/1f08a1b26cfc53b7715abc46857c6023bb1b87de https://git.kernel.org/stable/c/8e65edf0d37698f7a6cb174608d3ec7976baf49e https://git.kernel.org/stable/c/e9076ffbcaed5da6c182b144ef9f6e24554af268 https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-48654 – netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()
https://notcve.org/view.php?id=CVE-2022-48654
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find() nf_osf_find() incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nft_osf which can be used to leak stale kernel stack data to userspace. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nfnetlink_osf: corrige una posible coincidencia falsa en nf_osf_find() nf_osf_find() devuelve verdadero incorrectamente en caso de discrepancia, esto lleva a copiar el área de memoria no inicializada en nft_osf que puede usarse para filtrar el kernel obsoleto apilar datos en el espacio de usuario. • https://git.kernel.org/stable/c/22c7652cdaa8cd33ce78bacceb4e826a3f795873 https://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764 https://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47 https://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e https://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e https://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8 • CWE-908: Use of Uninitialized Resource •
CVSS: 7.7EPSS: 0%CPEs: 8EXPL: 0CVE-2022-48651 – ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header
https://notcve.org/view.php?id=CVE-2022-48651
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: ================================================================= UG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6 ardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 all Trace: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 packet_direct_xmit+0x22/0x60 packet_snd+0x7c9/0xc40 sock_sendmsg+0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: 1. packet_snd() only reset skb->mac_header when sock->type is SOCK_RAW and skb->protocol is not specified as in packet_parse_headers() 2. packet_direct_xmit() doesn't reset skb->mac_header as dev_queue_xmit() In this case, skb->mac_header is 65535 when ipvlan_xmit_mode_l2() is called. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which use "skb->head + skb->mac_header", out-of-bound access occurs. This patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2() and reset mac header in multicast to solve this out-of-bound bug. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipvlan: corrige errores fuera de los límites causados por skb->mac_header no configurado si se usa un socket AF_PACKET para enviar paquetes a través de ipvlan y se cambia la función xmit predeterminada del socket AF_PACKET desde dev_queue_xmit() a paquete_direct_xmit() a través de setsockopt() con el nombre de opción PACKET_QDISC_BYPASS, es posible que skb->mac_header no se restablezca y permanezca en el valor inicial de 65535, esto puede desencadenar errores de losa fuera de los límites como se muestra a continuación : =================================================== ================ UG: KASAN: losa fuera de los límites en ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] PU: 2 PID: 1768 Comm: raw_send Kdump: cargado No contaminado 6.0.0-rc4+ #6 nombre de hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 todo Seguimiento: print_address_description.constprop.0+0x1d/0x160 print_report.cold+0x4f/0x112 kasan_report+ 0xa3/0x130 ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan] ipvlan_start_xmit+0x29/0xa0 [ipvlan] __dev_direct_xmit+0x2e2/0x380 paquete_direct_xmit+0x22/0x60 paquete_snd+0x7c9/0xc40 0x9a/0xa0 __sys_sendto+0x18a/0x230 __x64_sys_sendto+0x74/0x90 do_syscall_64 +0x3b/0x90 Entry_SYSCALL_64_after_hwframe+0x63/0xcd La causa principal es: 1. paquete_snd() solo restablece skb->mac_header cuando sock->tipo es SOCK_RAW y skb->protocolo no se especifica como en paquete_parse_headers() 2. paquete_direct_xmit() no restablece skb->mac_header como dev_queue_xmit() En este caso, skb->mac_header es 65535 cuando se llama a ipvlan_xmit_mode_l2(). Entonces, cuando ipvlan_xmit_mode_l2() obtiene el encabezado mac con eth_hdr() que usa "skb->head + skb->mac_header", se produce un acceso fuera de los límites. Este parche reemplaza eth_hdr() con skb_eth_hdr() en ipvlan_xmit_mode_l2() y restablece el encabezado de mac en multidifusión para resolver este error fuera de los límites. • https://git.kernel.org/stable/c/2ad7bf3638411cb547f2823df08166c13ab04269 https://git.kernel.org/stable/c/e2b46cd5796f083e452fbc624f65b80328b0c1a4 https://git.kernel.org/stable/c/25efdbe5fe542c3063d1948cc4e98abcb57621ca https://git.kernel.org/stable/c/bffcdade259c05ab3436b5fab711612093c275ef https://git.kernel.org/stable/c/346e94aa4a99378592c46d6a34c72703a32bd5be https://git.kernel.org/stable/c/ab4a733874ead120691e8038272d22f8444d3638 https://git.kernel.org/stable/c/8d06006c7eb75587d986da46c48ba9274f94e8e7 https://git.kernel.org/stable/c/b583e6b25bf9321c91154f6c78d2173ef • CWE-125: Out-of-bounds Read •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2022-48648 – sfc: fix null pointer dereference in efx_hard_start_xmit
https://notcve.org/view.php?id=CVE-2022-48648
In the Linux kernel, the following vulnerability has been resolved: sfc: fix null pointer dereference in efx_hard_start_xmit Trying to get the channel from the tx_queue variable here is wrong because we can only be here if tx_queue is NULL, so we shouldn't dereference it. As the above comment in the code says, this is very unlikely to happen, but it's wrong anyway so let's fix it. I hit this issue because of a different bug that caused tx_queue to be NULL. If that happens, this is the error message that we get here: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sfc: corrige la desreferencia del puntero nulo en efx_hard_start_xmit Intentar obtener el canal de la variable tx_queue aquí es incorrecto porque solo podemos estar aquí si tx_queue es NULL, por lo que no debemos desreferenciarlo. Como dice el comentario anterior en el código, es muy poco probable que esto suceda, pero de todos modos está mal, así que solucionémoslo. Encontré este problema debido a un error diferente que provocó que tx_queue fuera NULL. • https://git.kernel.org/stable/c/12804793b17c0e19115a90d98f2f3df0cb79e233 https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7 https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998 https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03 https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3 •