CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2022-48672 – of: fdt: fix off-by-one error in unflatten_dt_nodes()
https://notcve.org/view.php?id=CVE-2022-48672
In the Linux kernel, the following vulnerability has been resolved: of: fdt: fix off-by-one error in unflatten_dt_nodes() Commit 78c44d910d3e ("drivers/of: Fix depth when unflattening devicetree") forgot to fix up the depth check in the loop body in unflatten_dt_nodes() which makes it possible to overflow the nps[] buffer... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: de: fdt: corrige el error uno por uno en unflatten_dt_nodes() Commit 78c44d910d3e ("drivers/of: corrige la profundidad al desacoplar el árbol de dispositivos") olvidó arreglar la comprobación de profundidad el cuerpo del bucle en unflatten_dt_nodes() que permite desbordar el búfer nps[]... Encontrado por el Centro de verificación de Linux (linuxtesting.org) con la herramienta de análisis estático SVACE. • https://git.kernel.org/stable/c/78c44d910d3e5f96dc6b3695fc1e4efd7c46a455 https://git.kernel.org/stable/c/cbdda20ce363356698835185801a58a28f644853 https://git.kernel.org/stable/c/2566706ac6393386a4e7c4ce23fe17f4c98d9aa0 https://git.kernel.org/stable/c/e0e88c25f88b9805572263c9ed20f1d88742feaf https://git.kernel.org/stable/c/ee4369260e77821602102dcc7d792de39a56365c https://git.kernel.org/stable/c/ba6b9f7cc1108bad6e2c53b1d6e0156379188db7 https://git.kernel.org/stable/c/2133f451311671c7c42b5640d2b999326b39aa0e https://git.kernel.org/stable/c/2f945a792f67815abca26fa8a5e863ccf • CWE-193: Off-by-one Error •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-48671 – cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()
https://notcve.org/view.php?id=CVE-2022-48671
In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() syzbot is hitting percpu_rwsem_assert_held(&cpu_hotplug_lock) warning at cpuset_attach() [1], for commit 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <-> cpus_read_lock() deadlock") missed that cpuset_attach() is also called from cgroup_attach_task_all(). Add cpus_read_lock() like what cgroup_procs_write_start() does. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: cgroup: agregue cpus_read_lock() faltante a cgroup_attach_task_all() syzbot está presionando la advertencia percpu_rwsem_assert_held(&cpu_hotplug_lock) en cpuset_attach() [1], para el commit 4f7e7236435ca0ab ("cgroup: Fix threadgroup_rwsem <- > cpus_read_lock() deadlock") se perdió que cpuset_attach() también se llama desde cgroup_attach_task_all(). Agregue cpus_read_lock() como lo hace cgroup_procs_write_start(). • https://git.kernel.org/stable/c/59c6902a96b4439e07c25ef86a4593bea5481c3b https://git.kernel.org/stable/c/dee1e2b18cf5426eed985512ccc6636ec69dbdd6 https://git.kernel.org/stable/c/3bf4bf54069f9b62a54988e5d085023c17a66c90 https://git.kernel.org/stable/c/c0deb027c99c099aa6b831e326bfba802b25e774 https://git.kernel.org/stable/c/07191f984842d50020789ff14c75da436a7f46a9 https://git.kernel.org/stable/c/9f267393b036f1470fb12fb892d59e7ff8aeb58d https://git.kernel.org/stable/c/5db17805b6ba4c34dab303f49aea3562fc25af75 https://git.kernel.org/stable/c/99bc25748e394d17f9e8b10cc7f273b8e • CWE-667: Improper Locking •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2022-48670 – peci: cpu: Fix use-after-free in adev_release()
https://notcve.org/view.php?id=CVE-2022-48670
In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered. Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: peci: cpu: corrige use-after-free en adev_release() Cuando auxiliar_device_add() devuelve un error, se llama a auxiliar_device_uninit(), lo que hace que se disminuya el recuento del dispositivo y . Se activará la devolución de llamada de liberación. Debido a que adev_release() vuelve a llamar a auxiliar_device_uninit(), provocará use-after-free: [1269.455172] ADVERTENCIA: CPU: 0 PID: 14267 en lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [1269.464007] refcount_t: underflow ; use-after-free. • https://git.kernel.org/stable/c/c87f1f99e26ea4ae08cabe753ae98e5626bdba89 https://git.kernel.org/stable/c/1c11289b34ab67ed080bbe0f1855c4938362d9cf • CWE-416: Use After Free •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-27392 – nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()
https://notcve.org/view.php?id=CVE-2024-27392
In the Linux kernel, the following vulnerability has been resolved: nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse() When nvme_identify_ns() fails, it frees the pointer to the struct nvme_id_ns before it returns. However, ns_update_nuse() calls kfree() for the pointer even when nvme_identify_ns() fails. This results in KASAN double-free, which was observed with blktests nvme/045 with proposed patches [1] on the kernel v6.8-rc7. Fix the double-free by skipping kfree() when nvme_identify_ns() fails. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: nvme: host: corrige la doble liberación de la estructura nvme_id_ns en ns_update_nuse() Cuando nvme_identify_ns() falla, libera el puntero a la estructura nvme_id_ns antes de que regrese. • https://git.kernel.org/stable/c/a1a825ab6a60380240ca136596732fdb80bad87a https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-27391 – wifi: wilc1000: do not realloc workqueue everytime an interface is added
https://notcve.org/view.php?id=CVE-2024-27391
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: do not realloc workqueue everytime an interface is added Commit 09ed8bfc5215 ("wilc1000: Rename workqueue from "WILC_wq" to "NETDEV-wq"") moved workqueue creation in wilc_netdev_ifc_init in order to set the interface name in the workqueue name. However, while the driver needs only one workqueue, the wilc_netdev_ifc_init is called each time we add an interface over a phy, which in turns overwrite the workqueue with a new one. This can be observed with the following commands: for i in $(seq 0 10) do iw phy phy0 interface add wlan1 type managed iw dev wlan1 del done ps -eo pid,comm|grep wlan 39 kworker/R-wlan0 98 kworker/R-wlan1 102 kworker/R-wlan1 105 kworker/R-wlan1 108 kworker/R-wlan1 111 kworker/R-wlan1 114 kworker/R-wlan1 117 kworker/R-wlan1 120 kworker/R-wlan1 123 kworker/R-wlan1 126 kworker/R-wlan1 129 kworker/R-wlan1 Fix this leakage by putting back hif_workqueue allocation in wilc_cfg80211_init. Regarding the workqueue name, it is indeed relevant to set it lowercase, however it is not attached to a specific netdev, so enforcing netdev name in the name is not so relevant. Still, enrich the name with the wiphy name to make it clear which phy is using the workqueue. • https://git.kernel.org/stable/c/09ed8bfc5215ad5aac91c50008277b5586b9ef24 https://git.kernel.org/stable/c/515cc676dfbce40d93c92b1ff3c1070e917f4e52 https://git.kernel.org/stable/c/4041c60a9d543b3ad50225385b072ba68e96166e https://git.kernel.org/stable/c/90ae293d1d255f622318fce6eeea2e18f9fde5c1 https://git.kernel.org/stable/c/9ab0c303ccabfd6bdce14432792d41090070008c https://git.kernel.org/stable/c/328efda22af81130c2ad981c110518cb29ff2f1d •