CVSS: 6.2EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52861 – drm: bridge: it66121: Fix invalid connector dereference
https://notcve.org/view.php?id=CVE-2023-52861
In the Linux kernel, the following vulnerability has been resolved: drm: bridge: it66121: Fix invalid connector dereference Fix the NULL pointer dereference when no monitor is connected, and the sound card is opened from userspace. Instead return an empty buffer (of zeroes) as the EDID information to the sound framework if there is no connector attached. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm: bridge: it66121: Corrige la desreferencia del conector no válido. Corrige la desreferencia del puntero NULL cuando no hay ningún monitor conectado y la tarjeta de sonido se abre desde el espacio de usuario. En su lugar, devuelva un búfer vacío (de ceros) como información EDID al sistema de sonido si no hay ningún conector conectado. • https://git.kernel.org/stable/c/e0fd83dbe92426e4f09b01111d260d2a7dc72fdb https://git.kernel.org/stable/c/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331 https://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc https://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86 https://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd • CWE-476: NULL Pointer Dereference •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52860 – drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process
https://notcve.org/view.php?id=CVE-2023-52860
In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process When tearing down a 'hisi_hns3' PMU, we mistakenly run the CPU hotplug callbacks after the device has been unregistered, leading to fireworks when we try to execute empty function callbacks within the driver: | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 | CPU: 0 PID: 15 Comm: cpuhp/0 Tainted: G W O 5.12.0-rc4+ #1 | Hardware name: , BIOS KpxxxFPGA 1P B600 V143 04/22/2021 | pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--) | pc : perf_pmu_migrate_context+0x98/0x38c | lr : perf_pmu_migrate_context+0x94/0x38c | | Call trace: | perf_pmu_migrate_context+0x98/0x38c | hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu] Use cpuhp_state_remove_instance_nocalls() instead of cpuhp_state_remove_instance() so that the notifiers don't execute after the PMU device has been unregistered. [will: Rewrote commit message] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() para el proceso uninit hisi_hns3_pmu. Al derribar una PMU 'hisi_hns3', ejecutamos por error las devoluciones de llamadas de conexión en caliente de la CPU después de que el dispositivo haya sido anulado del registro, lo que lleva a a fuegos artificiales cuando intentamos ejecutar devoluciones de llamadas de funciones vacías dentro del controlador: | No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 0000000000000000 | CPU: 0 PID: 15 Comunicaciones: cpuhp/0 Contaminado: GWO 5.12.0-rc4+ #1 | Nombre del hardware: , BIOS KpxxxFPGA 1P B600 V143 22/04/2021 | pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--) | ordenador personal: perf_pmu_migrate_context+0x98/0x38c | lr: perf_pmu_migrate_context+0x94/0x38c | | Rastreo de llamadas: | perf_pmu_migrate_context+0x98/0x38c | hisi_hns3_pmu_offline_cpu+0x104/0x12c [hisi_hns3_pmu] Utilice cpuhp_state_remove_instance_nocalls() en lugar de cpuhp_state_remove_instance() para que los notificadores no se ejecuten después de que el dispositivo PMU haya sido anulado del registro. [will: reescribirá el mensaje de confirmación] • https://git.kernel.org/stable/c/66637ab137b44914356a9dc7a9b3f8ebcf0b0695 https://git.kernel.org/stable/c/4589403a343bb0c72a6faf5898386ff964d4e01a https://git.kernel.org/stable/c/3f5827371763f2d9c70719c270055a81d030f3d0 https://git.kernel.org/stable/c/d04ff5437a45f275db5530efb49b68d0ec851f6f https://git.kernel.org/stable/c/50b560783f7f71790bcf70e9e9855155fb0af8c1 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2023-52859 – perf: hisi: Fix use-after-free when register pmu fails
https://notcve.org/view.php?id=CVE-2023-52859
In the Linux kernel, the following vulnerability has been resolved: perf: hisi: Fix use-after-free when register pmu fails When we fail to register the uncore pmu, the pmu context may not been allocated. The error handing will call cpuhp_state_remove_instance() to call uncore pmu offline callback, which migrate the pmu context. Since that's liable to lead to some kind of use-after-free. Use cpuhp_state_remove_instance_nocalls() instead of cpuhp_state_remove_instance() so that the notifiers don't execute after the PMU device has been failed to register. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: perf: hisi: corrige el use after free cuando falla el registro de pmu. Cuando no logramos registrar el pmu sin núcleo, es posible que no se haya asignado el contexto de pmu. El manejo del error llamará a cpuhp_state_remove_instance() para llamar a la devolución de llamada fuera de línea de uncore pmu, que migra el contexto de pmu. • https://git.kernel.org/stable/c/3bf30882c3c7b6e376d9d6d04082c9aa2d2ac30a https://git.kernel.org/stable/c/0e1e88bba286621b886218363de07b319d6208b2 https://git.kernel.org/stable/c/b660420f449d094b1fabfa504889810b3a63cdd5 https://git.kernel.org/stable/c/3405f364f82d4f5407a8b4c519dc15d24b847fda https://git.kernel.org/stable/c/75bab28ffd05ec8879c197890b1bd1dfec8d3f63 https://git.kernel.org/stable/c/b805cafc604bfdb671fae7347a57f51154afa735 •
CVSS: 6.2EPSS: 0%CPEs: 7EXPL: 0CVE-2023-52858 – clk: mediatek: clk-mt7629: Add check for mtk_alloc_clk_data
https://notcve.org/view.php?id=CVE-2023-52858
In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: clk-mt7629: Add check for mtk_alloc_clk_data Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: mediatek: clk-mt7629: Agregar verificación para mtk_alloc_clk_data. Agregue la verificación para el valor de retorno de mtk_alloc_clk_data() para evitar la desreferencia al puntero NULL. • https://git.kernel.org/stable/c/3b5e748615e714711220b2a95d19bd25a037db09 https://git.kernel.org/stable/c/e8ae4b49dd9cfde69d8de8c0c0cd7cf1b004482e https://git.kernel.org/stable/c/4f861b63945e076f9f003a5fad958174096df1ee https://git.kernel.org/stable/c/e964d21dc034b650d719c4ea39564bec72b42f94 https://git.kernel.org/stable/c/a836efc21ef04608333d6d05753e558ebd1f85d0 https://git.kernel.org/stable/c/1d89430fc3158f872d492f1b88d07262f48290c0 https://git.kernel.org/stable/c/5fbea47eebff5daeca7d918c99289bcd3ae4dc8d https://git.kernel.org/stable/c/2befa515c1bb6cdd33c262b909d93d197 • CWE-476: NULL Pointer Dereference •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52857 – drm/mediatek: Fix coverity issue with unintentional integer overflow
https://notcve.org/view.php?id=CVE-2023-52857
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix coverity issue with unintentional integer overflow 1. Instead of multiplying 2 variable of different types. Change to assign a value of one variable and then multiply the other variable. 2. Add a int variable for multiplier calculation instead of calculating different types multiplier with dma_addr_t variable directly. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/mediatek: soluciona el problema de cobertura con desbordamiento de enteros involuntario 1. • https://git.kernel.org/stable/c/1a64a7aff8da352c9419de3d5c34343682916411 https://git.kernel.org/stable/c/73e81f7219aa582d8e55a7b6552f607a8e5a9724 https://git.kernel.org/stable/c/0d8a1df39d3fc34560e2cc663b5c340d06a25396 https://git.kernel.org/stable/c/96312a251d4dcee5d36e32edba3002bfde0ddd9c https://git.kernel.org/stable/c/b0b0d811eac6b4c52cb9ad632fa6384cf48869e7 •