CVSS: 9.1EPSS: 0%CPEs: 8EXPL: 0CVE-2024-27053 – wifi: wilc1000: fix RCU usage in connect path
https://notcve.org/view.php?id=CVE-2024-27053
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix RCU usage in connect path With lockdep enabled, calls to the connect function from cfg802.11 layer lead to the following warning: ============================= WARNING: suspicious RCU usage 6.7.0-rc1-wt+ #333 Not tainted ----------------------------- drivers/net/wireless/microchip/wilc1000/hif.c:386 suspicious rcu_dereference_check() usage! [...] stack backtrace: CPU: 0 PID: 100 Comm: wpa_supplicant Not tainted 6.7.0-rc1-wt+ #333 Hardware name: Atmel SAMA5 unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x48 dump_stack_lvl from wilc_parse_join_bss_param+0x7dc/0x7f4 wilc_parse_join_bss_param from connect+0x2c4/0x648 connect from cfg80211_connect+0x30c/0xb74 cfg80211_connect from nl80211_connect+0x860/0xa94 nl80211_connect from genl_rcv_msg+0x3fc/0x59c genl_rcv_msg from netlink_rcv_skb+0xd0/0x1f8 netlink_rcv_skb from genl_rcv+0x2c/0x3c genl_rcv from netlink_unicast+0x3b0/0x550 netlink_unicast from netlink_sendmsg+0x368/0x688 netlink_sendmsg from ____sys_sendmsg+0x190/0x430 ____sys_sendmsg from ___sys_sendmsg+0x110/0x158 ___sys_sendmsg from sys_sendmsg+0xe8/0x150 sys_sendmsg from ret_fast_syscall+0x0/0x1c This warning is emitted because in the connect path, when trying to parse target BSS parameters, we dereference a RCU pointer whithout being in RCU critical section. Fix RCU dereference usage by moving it to a RCU read critical section. To avoid wrapping the whole wilc_parse_join_bss_param under the critical section, just use the critical section to copy ies data En el kernel de Linux, se resolvió la siguiente vulnerabilidad: wifi: wilc1000: corrige el uso de RCU en la ruta de conexión Con lockdep habilitado, las llamadas a la función de conexión desde la capa cfg802.11 generan la siguiente advertencia: ======== ====================== ADVERTENCIA: uso sospechoso de RCU 6.7.0-rc1-wt+ #333 No contaminado ------------- ---------------- drivers/net/wireless/microchip/wilc1000/hif.c:386 ¡uso sospechoso de rcu_dereference_check()! [...] pila backtrace: CPU: 0 PID: 100 Comm: wpa_supplicant No está contaminado 6.7.0-rc1-wt+ #333 Nombre de hardware: Atmel SAMA5 unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x48 dump_stack_lvl from wilc_parse_join_bss_para m +0x7dc/0x7f4 wilc_parse_join_bss_param desde connect+0x2c4/0x648 conectar desde cfg80211_connect+0x30c/0xb74 cfg80211_connect desde nl80211_connect+0x860/0xa94 nl80211_connect desde genl_rcv_msg+0x3fc /0x59c genl_rcv_msg de netlink_rcv_skb+0xd0/0x1f8 netlink_rcv_skb de genl_rcv+0x2c/0x3c genl_rcv de netlink_unicast+ 0x3b0/0x550 netlink_unicast de netlink_sendmsg+0x368/0x688 netlink_sendmsg de ____sys_sendmsg+0x190/0x430 ____sys_sendmsg de ___sys_sendmsg+0x110/0x158 ___sys_sendmsg de sys_sendmsg +0xe8/0x150 sys_sendmsg de ret_fast_syscall+0x0/0x1c Esta advertencia se emite porque en la ruta de conexión, al intentar Para analizar los parámetros BSS de destino, eliminamos la referencia a un puntero de RCU sin estar en la sección crítica de RCU. Corrija el uso de desreferenciación de RCU moviéndolo a una sección crítica de lectura de RCU. • https://git.kernel.org/stable/c/c460495ee072fc01a9b1e8d72c179510418cafac https://git.kernel.org/stable/c/e556006de4ea93abe2b46cba202a2556c544b8b2 https://git.kernel.org/stable/c/b4bbf38c350acb6500cbe667b1e2e68f896e4b38 https://git.kernel.org/stable/c/d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2 https://git.kernel.org/stable/c/745003b5917b610352f52fe0d11ef658d6471ec2 https://git.kernel.org/stable/c/4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce https://git.kernel.org/stable/c/5800ec78775c0cd646f71eb9bf8402fb794807de https://git.kernel.org/stable/c/dd50d3ead6e3707bb0a5df7cc832730c9 • CWE-476: NULL Pointer Dereference •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-27051 – cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value
https://notcve.org/view.php?id=CVE-2024-27051
In the Linux kernel, the following vulnerability has been resolved: cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value cpufreq_cpu_get may return NULL. To avoid NULL-dereference check it and return 0 in case of error. Found by Linux Verification Center (linuxtesting.org) with SVACE. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: cpufreq: brcmstb-avs-cpufreq: agregar verificación para el valor de retorno de cpufreq_cpu_get cpufreq_cpu_get puede devolver NULL. Para evitar la desreferencia NULL, verifíquelo y devuelva 0 en caso de error. Encontrado por el Centro de verificación de Linux (linuxtesting.org) con SVACE. • https://git.kernel.org/stable/c/de322e085995b9417582d6f72229dadb5c09d163 https://git.kernel.org/stable/c/9127599c075caff234359950117018a010dd01db https://git.kernel.org/stable/c/d951cf510fb0df91d3abac0121a59ebbc63c0567 https://git.kernel.org/stable/c/e72160cb6e23b78b41999d6885a34ce8db536095 https://git.kernel.org/stable/c/b25b64a241d769e932a022e5c780cf135ef56035 https://git.kernel.org/stable/c/74b84d0d71180330efe67c82f973a87f828323e5 https://git.kernel.org/stable/c/e6e3e51ffba0784782b1a076d7441605697ea3c6 https://git.kernel.org/stable/c/f661017e6d326ee187db24194cabb013d •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2024-27046 – nfp: flower: handle acti_netdevs allocation failure
https://notcve.org/view.php?id=CVE-2024-27046
In the Linux kernel, the following vulnerability has been resolved: nfp: flower: handle acti_netdevs allocation failure The kmalloc_array() in nfp_fl_lag_do_work() will return null, if the physical memory has run out. As a result, if we dereference the acti_netdevs, the null pointer dereference bugs will happen. This patch adds a check to judge whether allocation failure occurs. If it happens, the delayed work will be rescheduled and try again. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfp: flor: manejar el error de asignación de acti_netdevs El kmalloc_array() en nfp_fl_lag_do_work() devolverá nulo, si la memoria física se ha agotado. Como resultado, si eliminamos la referencia a acti_netdevs, se producirán errores de desreferencia del puntero nulo. Este parche agrega una verificación para juzgar si se produce una falla en la asignación. • https://git.kernel.org/stable/c/bb9a8d031140f186d13d82f57b0f5646d596652f https://git.kernel.org/stable/c/d746889db75a76aeee95fb705b8e1ac28c684a2e https://git.kernel.org/stable/c/3b1e8a617eb0f4cdc19def530047a95b5abde07d https://git.kernel.org/stable/c/928705e341010dd910fdece61ccb974f494a758f https://git.kernel.org/stable/c/0d387dc503f9a53e6d1f6e9dd0292d38f083eba5 https://git.kernel.org/stable/c/c9b4e220dd18f79507803f38a55d53b483f6c9c3 https://git.kernel.org/stable/c/408ba7fd04f959c61b50db79c983484312fea642 https://git.kernel.org/stable/c/c8df9203bf22c66fa26e8d8c7f8ce181c •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-27044 – drm/amd/display: Fix potential NULL pointer dereferences in 'dcn10_set_output_transfer_func()'
https://notcve.org/view.php?id=CVE-2024-27044
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential NULL pointer dereferences in 'dcn10_set_output_transfer_func()' The 'stream' pointer is used in dcn10_set_output_transfer_func() before the check if 'stream' is NULL. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn10/dcn10_hwseq.c:1892 dcn10_set_output_transfer_func() warn: variable dereferenced before check 'stream' (see line 1875) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/amd/display: corrige posibles desreferencias del puntero NULL en 'dcn10_set_output_transfer_func()'. El puntero 'stream' se usa en dcn10_set_output_transfer_func() antes de verificar si 'stream' es NULL. Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn10/dcn10_hwseq.c:1892 dcn10_set_output_transfer_func() advertencia: variable desreferenciada antes de verificar 'flujo' (ver línea 1875) • https://git.kernel.org/stable/c/ddef02de0d71d483ad4398393717cc0d53fc990a https://git.kernel.org/stable/c/e019d87e02f1e539ae48b99187f253847744ca7a https://git.kernel.org/stable/c/330caa061af53ea6d287d7c43d0703714e510e08 https://git.kernel.org/stable/c/6ac7c7a3a9ab57aba0fe78ecb922d2b20e16efeb https://git.kernel.org/stable/c/29fde8895b2fcc33f44aea28c644ce2d9b62f9e0 https://git.kernel.org/stable/c/2d9fe7787af01188dc470a649bdbb842d6511fd7 https://git.kernel.org/stable/c/14613d52bc7fc180df6d2c65ba65fc921fc1dda7 https://git.kernel.org/stable/c/7874ab3105ca4657102fee1cc14b0af70 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-27043 – media: edia: dvbdev: fix a use-after-free
https://notcve.org/view.php?id=CVE-2024-27043
In the Linux kernel, the following vulnerability has been resolved: media: edia: dvbdev: fix a use-after-free In dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed in several error-handling paths. However, *pdvbdev is not set to NULL after dvbdev's deallocation, causing use-after-frees in many places, for example, in the following call chain: budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device |-> dvb_remove_device |-> dvb_device_put |-> kref_put When calling dvb_unregister_device, dmxdev->dvbdev (i.e. *pdvbdev in dvb_register_device) could point to memory that had been freed in dvb_register_device. Thereafter, this pointer is transferred to kref_put and triggering a use-after-free. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: medios: edia: dvbdev: corregir un use-after-free En dvb_register_device, *pdvbdev se establece igual a dvbdev, que se libera en varias rutas de manejo de errores. • https://git.kernel.org/stable/c/b61901024776b25ce7b8edc31bb1757c7382a88e https://git.kernel.org/stable/c/d0f5c28333822f9baa5280d813124920720fd856 https://git.kernel.org/stable/c/f20c3270f3ed5aa6919a87e4de9bf6c05fb57086 https://git.kernel.org/stable/c/096237039d00c839f3e3a5fe6d001bf0db45b644 https://git.kernel.org/stable/c/0d3fe80b6d175c220b3e252efc6c6777e700e98e https://git.kernel.org/stable/c/437a111f79a2f5b2a5f21e27fdec6f40c8768712 https://git.kernel.org/stable/c/779e8db7efb22316c8581d6c229636d2f5694a62 https://git.kernel.org/stable/c/35674111a043b0482a9bc69da8850a83f •