CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-48863 – mISDN: Fix memory leak in dsp_pipeline_build()
https://notcve.org/view.php?id=CVE-2022-48863
In the Linux kernel, the following vulnerability has been resolved: mISDN: Fix memory leak in dsp_pipeline_build() dsp_pipeline_build() allocates dup pointer by kstrdup(cfg), but then it updates dup variable by strsep(&dup, "|"). As a result when it calls kfree(dup), the dup variable contains NULL. Found by Linux Driver Verification project (linuxtesting.org) with SVACE. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mISDN: corrige la pérdida de memoria en dsp_pipeline_build() dsp_pipeline_build() asigna el puntero dup mediante kstrdup(cfg), pero luego actualiza la variable dup mediante strsep(&dup, "|"). Como resultado, cuando llama a kfree(dup), la variable dup contiene NULL. Encontrado por el proyecto de verificación de controladores de Linux (linuxtesting.org) con SVACE. • https://git.kernel.org/stable/c/960366cf8dbb3359afaca30cf7fdbf69a6d6dda7 https://git.kernel.org/stable/c/a3d5fcc6cf2ecbba5a269631092570aa285a24cb https://git.kernel.org/stable/c/7777b1f795af1bb43867375d8a776080111aae1b https://git.kernel.org/stable/c/640445d6fc059d4514ffea79eb4196299e0e2d0f https://git.kernel.org/stable/c/c6a502c2299941c8326d029cfc8a3bc8a4607ad5 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48862 – vhost: fix hung thread due to erroneous iotlb entries
https://notcve.org/view.php?id=CVE-2022-48862
In the Linux kernel, the following vulnerability has been resolved: vhost: fix hung thread due to erroneous iotlb entries In vhost_iotlb_add_range_ctx(), range size can overflow to 0 when start is 0 and last is ULONG_MAX. One instance where it can happen is when userspace sends an IOTLB message with iova=size=uaddr=0 (vhost_process_iotlb_msg). So, an entry with size = 0, start = 0, last = ULONG_MAX ends up in the iotlb. Next time a packet is sent, iotlb_access_ok() loops indefinitely due to that erroneous entry. Call Trace: <TASK> iotlb_access_ok+0x21b/0x3e0 drivers/vhost/vhost.c:1340 vq_meta_prefetch+0xbc/0x280 drivers/vhost/vhost.c:1366 vhost_transport_do_send_pkt+0xe0/0xfd0 drivers/vhost/vsock.c:104 vhost_worker+0x23d/0x3d0 drivers/vhost/vhost.c:372 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> Reported by syzbot at: https://syzkaller.appspot.com/bug?extid=0abd373e2e50d704db87 To fix this, do two things: 1. • https://git.kernel.org/stable/c/0bbe30668d89ec8a309f28ced6d092c90fb23e8c https://git.kernel.org/stable/c/f8d88e86e90ea1002226d7ac2430152bfea003d1 https://git.kernel.org/stable/c/d9a747e6b6561280bf1791bb24c5e9e082193dad https://git.kernel.org/stable/c/e2ae38cf3d91837a493cb2093c87700ff3cbe667 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48861 – vdpa: fix use-after-free on vp_vdpa_remove
https://notcve.org/view.php?id=CVE-2022-48861
In the Linux kernel, the following vulnerability has been resolved: vdpa: fix use-after-free on vp_vdpa_remove When vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device and then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove, triggering use-after-free. Call Trace of unbinding driver free vp_vdpa : do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree Call Trace of dereference vp_vdpa->mdev.pci_dev: vp_modern_remove pci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vdpa: corrige el use-after-free en vp_vdpa_remove Cuando el controlador vp_vdpa se desvincula, se libera vp_vdpa en vdpa_unregister_device y luego se elimina la referencia a vp_vdpa->mdev.pci_dev en vp_modern_remove, lo que activa el use-after-free. Rastreo de llamadas de controlador de desvinculación gratuito vp_vdpa: do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree Rastreo de llamadas de desreferencia vp_vdpa->mdev.pci_dev: vp_modern_remove p ci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end • https://git.kernel.org/stable/c/64b9f64f80a6f4b7ea51bf0510119cb15e801dc6 https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274 https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2022-48860 – ethernet: Fix error handling in xemaclite_of_probe
https://notcve.org/view.php?id=CVE-2022-48860
In the Linux kernel, the following vulnerability has been resolved: ethernet: Fix error handling in xemaclite_of_probe This node pointer is returned by of_parse_phandle() with refcount incremented in this function. Calling of_node_put() to avoid the refcount leak. As the remove function do. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ethernet: corrige el manejo de errores en xemaclite_of_probe Este puntero de nodo lo devuelve of_parse_phandle() con refcount incrementado en esta función. Llamar a of_node_put() para evitar la fuga de recuento. • https://git.kernel.org/stable/c/5cdaaa12866e916d0ada8b56c5f0e543cfc7fe3d https://git.kernel.org/stable/c/669172ce976608b25a2f76f3c65d47f042d125c9 https://git.kernel.org/stable/c/b7220f8e9d6c6b9594ddfb3125dad938cd478b1f https://git.kernel.org/stable/c/8609e29611befc4bfbe7a91bb50fc65ae72ff549 https://git.kernel.org/stable/c/8ee065a7a9b6a3976c16340503677efc4d8351f6 https://git.kernel.org/stable/c/979b418b96e35f07136f77962ccfaa54cf3e30e1 https://git.kernel.org/stable/c/5e7c402892e189a7bc152b125e72261154aa585d https://git.kernel.org/stable/c/1852854ee349881efb78ccdbbb2378389 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48859 – net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr
https://notcve.org/view.php?id=CVE-2022-48859
In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: Add missing of_node_put() in prestera_switch_set_base_mac_addr This node pointer is returned by of_find_compatible_node() with refcount incremented. Calling of_node_put() to aovid the refcount leak. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: marvell: prestera: Agregar falta of_node_put() en prestera_switch_set_base_mac_addr Este puntero de nodo lo devuelve of_find_compatible_node() con refcount incrementado. Llamar a of_node_put() para evitar la fuga de recuento. • https://git.kernel.org/stable/c/501ef3066c89d7f9045315e1be58749cf9e6814d https://git.kernel.org/stable/c/b7c2fd1d126329340639adfb8dd2938fe4b65df7 https://git.kernel.org/stable/c/4cc66bf17220ff9631f9fa99b02a872e0ad5a08b https://git.kernel.org/stable/c/c9ffa3e2bc451816ce0295e40063514fabf2bd36 • CWE-401: Missing Release of Memory after Effective Lifetime •