CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-26914 – drm/amd/display: fix incorrect mpc_combine array size
https://notcve.org/view.php?id=CVE-2024-26914
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix incorrect mpc_combine array size [why] MAX_SURFACES is per stream, while MAX_PLANES is per asic. The mpc_combine is an array that records all the planes per asic. Therefore MAX_PLANES should be used as the array size. Using MAX_SURFACES causes array overflow when there are more than 3 planes. [how] Use the MAX_PLANES for the mpc_combine array size. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/amd/display: corrige el tamaño incorrecto de la matriz mpc_combine [por qué] MAX_SURFACES es por flujo, mientras que MAX_PLANES es por asic. mpc_combine es una matriz que registra todos los planos por asic. • https://git.kernel.org/stable/c/0bd8ef618a42d7e6ea3f701065264e15678025e3 https://git.kernel.org/stable/c/39079fe8e660851abbafa90cd55cbf029210661f •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2024-26913 – drm/amd/display: Fix dcn35 8k30 Underflow/Corruption Issue
https://notcve.org/view.php?id=CVE-2024-26913
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dcn35 8k30 Underflow/Corruption Issue [why] odm calculation is missing for pipe split policy determination and cause Underflow/Corruption issue. [how] Add the odm calculation. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/amd/display: solucione el problema de corrupción/desbordamiento de dcn35 8k30 [por qué] falta el cálculo de odm para la determinación de la política de división de tuberías y causa un problema de corrupción/desbordamiento. [cómo] Agregue el cálculo de odm. • https://git.kernel.org/stable/c/cdbe0be8874c63bca85b8c38e5b1eecbdd18df31 https://git.kernel.org/stable/c/faf51b201bc42adf500945732abb6220c707d6f3 • CWE-191: Integer Underflow (Wrap or Wraparound) •
CVSS: 4.7EPSS: 0%CPEs: 8EXPL: 0CVE-2024-26910 – netfilter: ipset: fix performance regression in swap operation
https://notcve.org/view.php?id=CVE-2024-26910
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix performance regression in swap operation The patch "netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test", commit 28628fa9 fixes a race condition. But the synchronize_rcu() added to the swap function unnecessarily slows it down: it can safely be moved to destroy and use call_rcu() instead. Eric Dumazet pointed out that simply calling the destroy functions as rcu callback does not work: sets with timeout use garbage collectors which need cancelling at destroy which can wait. Therefore the destroy functions are split into two: cancelling garbage collectors safely at executing the command received by netlink and moving the remaining part only into the rcu callback. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: ipset: corrige la regresión de rendimiento en la operación de intercambio El parche "netfilter: ipset: corrige la condición de ejecución entre swap/destroy y add/del/test del lado del kernel", commit 28628fa9 corrige un condición de ejecución. Pero elsync_rcu() agregado a la función swap la ralentiza innecesariamente: se puede mover con seguridad para destruir y usar call_rcu() en su lugar. Eric Dumazet señaló que simplemente llamar a las funciones de destrucción como devolución de llamada de rcu no funciona: los conjuntos con tiempo de espera usan recolectores de basura que necesitan cancelarse en la destrucción y que pueden esperar. • https://git.kernel.org/stable/c/427deb5ba5661c4ae1cfb35955d2e01bd5f3090a https://git.kernel.org/stable/c/e7152a138a5ac77439ff4e7a7533448a7d4c260d https://git.kernel.org/stable/c/8bb930c3a1eacec1b14817f565ff81667c7c5dfa https://git.kernel.org/stable/c/875ee3a09e27b7adb7006ca6d16faf7f33415aa5 https://git.kernel.org/stable/c/23c31036f862582f98386120aee55c9ae23d7899 https://git.kernel.org/stable/c/28628fa952fefc7f2072ce6e8016968cc452b1ba https://git.kernel.org/stable/c/a12606e5ad0cee8f4ba3ec68561c4d6275d2df57 https://git.kernel.org/stable/c/c7f2733e5011bfd136f1ca93497394d43 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 4.7EPSS: 0%CPEs: 5EXPL: 0CVE-2023-52645 – pmdomain: mediatek: fix race conditions with genpd
https://notcve.org/view.php?id=CVE-2023-52645
In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix race conditions with genpd If the power domains are registered first with genpd and *after that* the driver attempts to power them on in the probe sequence, then it is possible that a race condition occurs if genpd tries to power them on in the same time. The same is valid for powering them off before unregistering them from genpd. Attempt to fix race conditions by first removing the domains from genpd and *after that* powering down domains. Also first power up the domains and *after that* register them to genpd. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: pmdomain: mediatek: corrige las condiciones de ejecución con genpd, si los dominios de energía se registran primero con genpd y *después de eso* el controlador intenta encenderlos en la secuencia de sonda, entonces es Es posible que se produzca una condición de ejecución si genpd intenta encenderlos al mismo tiempo. Lo mismo es válido para apagarlos antes de cancelar su registro en genpd. Intente arreglar las condiciones de ejecución eliminando primero los dominios de genpd y *después* apagando los dominios. También primero encienda los dominios y *después* regístrelos en genpd. • https://git.kernel.org/stable/c/59b644b01cf48d6042f3c5983d464921a4920845 https://git.kernel.org/stable/c/475426ad1ae0bfdfd8f160ed9750903799392438 https://git.kernel.org/stable/c/339ddc983bc1622341d95f244c361cda3da3a4ff https://git.kernel.org/stable/c/f83b9abee9faa4868a6fac4669b86f4c215dae25 https://git.kernel.org/stable/c/3cd1d92ee1dbf3e8f988767eb75f26207397792b https://git.kernel.org/stable/c/c41336f4d69057cbf88fed47951379b384540df5 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-26909 – soc: qcom: pmic_glink_altmode: fix drm bridge use-after-free
https://notcve.org/view.php?id=CVE-2024-26909
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: pmic_glink_altmode: fix drm bridge use-after-free A recent DRM series purporting to simplify support for "transparent bridges" and handling of probe deferrals ironically exposed a use-after-free issue on pmic_glink_altmode probe deferral. This has manifested itself as the display subsystem occasionally failing to initialise and NULL-pointer dereferences during boot of machines like the Lenovo ThinkPad X13s. Specifically, the dp-hpd bridge is currently registered before all resources have been acquired which means that it can also be deregistered on probe deferrals. In the meantime there is a race window where the new aux bridge driver (or PHY driver previously) may have looked up the dp-hpd bridge and stored a (non-reference-counted) pointer to the bridge which is about to be deallocated. When the display controller is later initialised, this triggers a use-after-free when attaching the bridges: dp -> aux -> dp-hpd (freed) which may, for example, result in the freed bridge failing to attach: [drm:drm_bridge_attach [drm]] *ERROR* failed to attach bridge /soc@0/phy@88eb000 to encoder TMDS-31: -16 or a NULL-pointer dereference: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 ... Call trace: drm_bridge_attach+0x70/0x1a8 [drm] drm_aux_bridge_attach+0x24/0x38 [aux_bridge] drm_bridge_attach+0x80/0x1a8 [drm] dp_bridge_init+0xa8/0x15c [msm] msm_dp_modeset_init+0x28/0xc4 [msm] The DRM bridge implementation is clearly fragile and implicitly built on the assumption that bridges may never go away. In this case, the fix is to move the bridge registration in the pmic_glink_altmode driver to after all resources have been looked up. Incidentally, with the new dp-hpd bridge implementation, which registers child devices, this is also a requirement due to a long-standing issue in driver core that can otherwise lead to a probe deferral loop (see commit fbc35b45f9f6 ("Add documentation on meaning of -EPROBE_DEFER")). [DB: slightly fixed commit message by adding the word 'commit'] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: soc: qcom: pmic_glink_altmode: fix drm bridge use-after-free Una serie reciente de DRM que pretende simplificar el soporte para "puentes transparentes" y el manejo de aplazamientos de sonda expuso irónicamente un uso posterior -Problema gratuito en el aplazamiento de la sonda pmic_glink_altmode. Esto se ha manifestado como que el subsistema de visualización ocasionalmente falla al inicializarse y se eliminan las referencias del puntero NULL durante el arranque de máquinas como la Lenovo ThinkPad X13s. Específicamente, el puente dp-hpd actualmente está registrado antes de que se hayan adquirido todos los recursos, lo que significa que también se puede cancelar su registro en caso de aplazamientos de sonda. Mientras tanto, hay una ventana de carrera donde el nuevo controlador del puente auxiliar (o el controlador PHY anteriormente) puede haber buscado el puente dp-hpd y almacenado un puntero (sin recuento de referencias) al puente que está a punto de ser desasignado. • https://git.kernel.org/stable/c/080b4e24852b1d5b66929f69344e6c3eeb963941 https://git.kernel.org/stable/c/2bbd65c6ca567ed8dbbfc4fb945f57ce64bef342 https://git.kernel.org/stable/c/ef45aa2841e15b649e5417fe3d4de395fe462781 https://git.kernel.org/stable/c/b979f2d50a099f3402418d7ff5f26c3952fb08bb • CWE-416: Use After Free •