CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35991 – dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue
https://notcve.org/view.php?id=CVE-2024-35991
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue drain_workqueue() cannot be called safely in a spinlocked context due to possible task rescheduling. In the multi-task scenario, calling queue_work() while drain_workqueue() will lead to a Call Trace as pushing a work on a draining workqueue is not permitted in spinlocked context. Call Trace: <TASK> ? __warn+0x7d/0x140 ? __queue_work+0x2b2/0x440 ? report_bug+0x1f8/0x200 ? • https://git.kernel.org/stable/c/c40bd7d9737bdcfb02d42765bc6c59b338151123 https://git.kernel.org/stable/c/758071a35d9f3ffd84ff12169d081412a2f5f098 https://git.kernel.org/stable/c/c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f https://git.kernel.org/stable/c/d5638de827cff0fce77007e426ec0ffdedf68a44 https://access.redhat.com/security/cve/CVE-2024-35991 https://bugzilla.redhat.com/show_bug.cgi?id=2281843 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-35990 – dma: xilinx_dpdma: Fix locking
https://notcve.org/view.php?id=CVE-2024-35990
In the Linux kernel, the following vulnerability has been resolved: dma: xilinx_dpdma: Fix locking There are several places where either chan->lock or chan->vchan.lock was not held. Add appropriate locking. This fixes lockdep warnings like [ 31.077578] ------------[ cut here ]------------ [ 31.077831] WARNING: CPU: 2 PID: 40 at drivers/dma/xilinx/xilinx_dpdma.c:834 xilinx_dpdma_chan_queue_transfer+0x274/0x5e0 [ 31.077953] Modules linked in: [ 31.078019] CPU: 2 PID: 40 Comm: kworker/u12:1 Not tainted 6.6.20+ #98 [ 31.078102] Hardware name: xlnx,zynqmp (DT) [ 31.078169] Workqueue: events_unbound deferred_probe_work_func [ 31.078272] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.078377] pc : xilinx_dpdma_chan_queue_transfer+0x274/0x5e0 [ 31.078473] lr : xilinx_dpdma_chan_queue_transfer+0x270/0x5e0 [ 31.078550] sp : ffffffc083bb2e10 [ 31.078590] x29: ffffffc083bb2e10 x28: 0000000000000000 x27: ffffff880165a168 [ 31.078754] x26: ffffff880164e920 x25: ffffff880164eab8 x24: ffffff880164d480 [ 31.078920] x23: ffffff880165a148 x22: ffffff880164e988 x21: 0000000000000000 [ 31.079132] x20: ffffffc082aa3000 x19: ffffff880164e880 x18: 0000000000000000 [ 31.079295] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 31.079453] x14: 0000000000000000 x13: ffffff8802263dc0 x12: 0000000000000001 [ 31.079613] x11: 0001ffc083bb2e34 x10: 0001ff880164e98f x9 : 0001ffc082aa3def [ 31.079824] x8 : 0001ffc082aa3dec x7 : 0000000000000000 x6 : 0000000000000516 [ 31.079982] x5 : ffffffc7f8d43000 x4 : ffffff88003c9c40 x3 : ffffffffffffffff [ 31.080147] x2 : ffffffc7f8d43000 x1 : 00000000000000c0 x0 : 0000000000000000 [ 31.080307] Call trace: [ 31.080340] xilinx_dpdma_chan_queue_transfer+0x274/0x5e0 [ 31.080518] xilinx_dpdma_issue_pending+0x11c/0x120 [ 31.080595] zynqmp_disp_layer_update+0x180/0x3ac [ 31.080712] zynqmp_dpsub_plane_atomic_update+0x11c/0x21c [ 31.080825] drm_atomic_helper_commit_planes+0x20c/0x684 [ 31.080951] drm_atomic_helper_commit_tail+0x5c/0xb0 [ 31.081139] commit_tail+0x234/0x294 [ 31.081246] drm_atomic_helper_commit+0x1f8/0x210 [ 31.081363] drm_atomic_commit+0x100/0x140 [ 31.081477] drm_client_modeset_commit_atomic+0x318/0x384 [ 31.081634] drm_client_modeset_commit_locked+0x8c/0x24c [ 31.081725] drm_client_modeset_commit+0x34/0x5c [ 31.081812] __drm_fb_helper_restore_fbdev_mode_unlocked+0x104/0x168 [ 31.081899] drm_fb_helper_set_par+0x50/0x70 [ 31.081971] fbcon_init+0x538/0xc48 [ 31.082047] visual_init+0x16c/0x23c [ 31.082207] do_bind_con_driver.isra.0+0x2d0/0x634 [ 31.082320] do_take_over_console+0x24c/0x33c [ 31.082429] do_fbcon_takeover+0xbc/0x1b0 [ 31.082503] fbcon_fb_registered+0x2d0/0x34c [ 31.082663] register_framebuffer+0x27c/0x38c [ 31.082767] __drm_fb_helper_initial_config_and_unlock+0x5c0/0x91c [ 31.082939] drm_fb_helper_initial_config+0x50/0x74 [ 31.083012] drm_fbdev_dma_client_hotplug+0xb8/0x108 [ 31.083115] drm_client_register+0xa0/0xf4 [ 31.083195] drm_fbdev_dma_setup+0xb0/0x1cc [ 31.083293] zynqmp_dpsub_drm_init+0x45c/0x4e0 [ 31.083431] zynqmp_dpsub_probe+0x444/0x5e0 [ 31.083616] platform_probe+0x8c/0x13c [ 31.083713] really_probe+0x258/0x59c [ 31.083793] __driver_probe_device+0xc4/0x224 [ 31.083878] driver_probe_device+0x70/0x1c0 [ 31.083961] __device_attach_driver+0x108/0x1e0 [ 31.084052] bus_for_each_drv+0x9c/0x100 [ 31.084125] __device_attach+0x100/0x298 [ 31.084207] device_initial_probe+0x14/0x20 [ 31.084292] bus_probe_device+0xd8/0xdc [ 31.084368] deferred_probe_work_func+0x11c/0x180 [ 31.084451] process_one_work+0x3ac/0x988 [ 31.084643] worker_thread+0x398/0x694 [ 31.084752] kthread+0x1bc/0x1c0 [ 31.084848] ret_from_fork+0x10/0x20 [ 31.084932] irq event stamp: 64549 [ 31.084970] hardirqs last enabled at (64548): [<ffffffc081adf35c>] _raw_spin_unlock_irqrestore+0x80/0x90 [ 31.085157] ---truncated--- En el kernel de Linux, se resolvió la siguiente vulnerabilidad: dma: xilinx_dpdma: bloqueo de reparación Hay varios lugares donde chan->lock o chan->vchan.lock no se mantuvieron. Agregue el bloqueo apropiado. Esto corrige advertencias de bloqueo como [31.077578] ------------[ cortar aquí ]------------ [ 31.077831] ADVERTENCIA: CPU: 2 PID: 40 en los controladores/ dma/xilinx/xilinx_dpdma.c:834 xilinx_dpdma_chan_queue_transfer+0x274/0x5e0 [ 31.077953] Módulos vinculados en: [ 31.078019] CPU: 2 PID: 40 Comm: kworker/u12:1 No contaminado 6.6.20+ #98 [ 31.07 8102] Nombre del hardware : xlnx,zynqmp (DT) [31.078169] Cola de trabajo: events_unbound deferred_probe_work_func [31.078272] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [31.078377] pc: xilinx_dpdma_chan_queue _transfer+0x274/0x5e0 [ 31.078473 ] lr: xilinx_dpdma_chan_queue_transfer+0x270/0x5e0 [31.078550] sp: ffffffc083bb2e10 [31.078590] x29: ffffffc083bb2e10 x28: 0000000000000000 x27: 65a168 [ 31.078754] x26: ffffff880164e920 x25: ffffff880164eab8 x24: ffffff880164d480 [ 31.078920] x23: ffffff880165a148 x22: ffffff880164e988 0000000000000000 [ 31.079132] x20: ffffffc082aa3000 x19: ffffff880164e880 x18: 0000000000000000 [ 31.079295] x17: 0000000000000000 x16: 00000000000000000 x15: 0000000000000000 [ 31.079453] x14: 0000000000000000 x13: ffffff8802263dc0 x12: 0000000000000001 [ 31.079613] x11: 0001ffc083bb2e34 x10: 0001ff880164e98f x9: 0001ffc082aa3def [31.079824 ] x8: 0001ffc082aa3dec x7: 0000000000000000 x6: 0000000000000516 [31.079982] x5: ffffffc7f8d43000 x4: ffffff88003c9c40 x3: ffffffffffffffff [ 31.0 80147] x2: ffffffc7f8d43000 x1: 00000000000000c0 x0: 0000000000000000 [31.080307] Rastreo de llamadas: [31.080340] xilinx_dpdma_chan_queue_transfer+0x274/0x5e0 [31. 080518 ] xilinx_dpdma_issue_pending+0x11c/0x120 [ 31.080595] zynqmp_disp_layer_update+0x180/0x3ac [ 31.080712] zynqmp_dpsub_plane_atomic_update+0x11c/0x21c [ 31.080825] helper_commit_planes+0x20c/0x684 [ 31.080951] drm_atomic_helper_commit_tail+0x5c/0xb0 [ 31.081139] commit_tail+0x234/0x294 [ 31.081246] drm_atomic_helper_commit +0x1f8/0x210 [ 31.081363] drm_atomic_commit+0x100/0x140 [ 31.081477] drm_client_modeset_commit_atomic+0x318/0x384 [ 31.081634] drm_client_modeset_commit_locked+0x8c/0x24c [ 31.081725] drm_client_modeset_commit+0x34/0x5c [ 31.081812] __drm_fb_helper_restore_fbdev_mode_unlocked+0x104/0x168 [ 31.081899] drm_fb_helper_set_par+0x50 /0x70 [ 31.081971] fbcon_init+0x538/0xc48 [ 31.082047] visual_init+0x16c/0x23c [ 31.082207] do_bind_con_driver.isra.0+0x2d0/0x634 [ 31.082320] x24c/0x33c [ 31.082429] do_fbcon_takeover+0xbc/0x1b0 [ 31.082503] fbcon_fb_registered +0x2d0/0x34c [ 31.082663] Register_framebuffer+0x27c/0x38c [ 31.082767] __drm_fb_helper_initial_config_and_unlock+0x5c0/0x91c [ 31.082939] drm_fb_helper_initial_config+0x50/0x74 [ 3 1.083012] drm_fbdev_dma_client_hotplug+0xb8/0x108 [ 31.083115] drm_client_register+0xa0/0xf4 [ 31.083195] drm_fbdev_dma_setup+0xb0 /0x1cc [ 31.083293] zynqmp_dpsub_drm_init+0x45c/0x4e0 [ 31.083431] zynqmp_dpsub_probe+0x444/0x5e0 [ 31.083616] platform_probe+0x8c/0x13c [ 31.083713] +0x258/0x59c [ 31.083793] __driver_probe_device+0xc4/0x224 [ 31.083878] driver_probe_device+0x70/0x1c0 [ 31.083961] __device_attach_driver+0x108/0x1e0 [ 31.084052] bus_for_each_drv+0x9c/0x100 [ 31.084125] __device_attach+0x100/0x298 [ 31.084207 device_initial_probe+0x14/0 x20 [ 31.084292] bus_probe_device+0xd8/0xdc [ 31.084368] deferred_probe_work_func+0x11c/0x180 [ 31.084451 ] Process_one_work+0x3ac/0x988 [31.084643] work_thread+0x398/0x694 [31.084752] kthread+0x1bc/0x1c0 [31.084848] ret_from_fork+0x10/0x20 [31.084932] sello de evento irq: 9 [31.084970] hardirqs habilitado por última vez en (64548): [ ] _raw_spin_unlock_irqrestore+0x80/0x90 [31.085157] ---truncado--- • https://git.kernel.org/stable/c/7cbb0c63de3fc218fd06ecfedb477772a4d12f76 https://git.kernel.org/stable/c/fcdd5bb4a8c81c64c1334d7e0aba41a8829a24de https://git.kernel.org/stable/c/0ccac964520a6f19e355652c8ca38af2a7f27076 https://git.kernel.org/stable/c/8bf574183282d219cfa991f7df37aad491d74c11 https://git.kernel.org/stable/c/8e3c94767cad5150198e4337c8b91f3bb068e14b https://git.kernel.org/stable/c/c660be571609e03e7d5972343536a736fcb31557 https://git.kernel.org/stable/c/244296cc3a155199a8b080d19e645d7d49081a38 https://lists.debian.org/debian-lts-announce/2024/06/ • CWE-667: Improper Locking •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2024-35989 – dmaengine: idxd: Fix oops during rmmod on single-CPU platforms
https://notcve.org/view.php?id=CVE-2024-35989
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms During the removal of the idxd driver, registered offline callback is invoked as part of the clean up process. However, on systems with only one CPU online, no valid target is available to migrate the perf context, resulting in a kernel oops: BUG: unable to handle page fault for address: 000000000002a2b8 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 1470e1067 P4D 0 Oops: 0002 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 20 Comm: cpuhp/0 Not tainted 6.8.0-rc6-dsa+ #57 Hardware name: Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 07/18/2023 RIP: 0010:mutex_lock+0x2e/0x50 ... Call Trace: <TASK> __die+0x24/0x70 page_fault_oops+0x82/0x160 do_user_addr_fault+0x65/0x6b0 __pfx___rdmsr_safe_on_cpu+0x10/0x10 exc_page_fault+0x7d/0x170 asm_exc_page_fault+0x26/0x30 mutex_lock+0x2e/0x50 mutex_lock+0x1e/0x50 perf_pmu_migrate_context+0x87/0x1f0 perf_event_cpu_offline+0x76/0x90 [idxd] cpuhp_invoke_callback+0xa2/0x4f0 __pfx_perf_event_cpu_offline+0x10/0x10 [idxd] cpuhp_thread_fun+0x98/0x150 smpboot_thread_fn+0x27/0x260 smpboot_thread_fn+0x1af/0x260 __pfx_smpboot_thread_fn+0x10/0x10 kthread+0x103/0x140 __pfx_kthread+0x10/0x10 ret_from_fork+0x31/0x50 __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 <TASK> Fix the issue by preventing the migration of the perf context to an invalid target. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: dmaengine: idxd: soluciona errores durante rmmod en plataformas de CPU única Durante la eliminación del controlador idxd, se invoca la devolución de llamada sin conexión registrada como parte del proceso de limpieza. Sin embargo, en sistemas con una sola CPU en línea, no hay ningún destino válido disponible para migrar el contexto de rendimiento, lo que genera un error del kernel: ERROR: no se puede manejar el error de página para la dirección: 000000000002a2b8 #PF: acceso de escritura del supervisor en modo kernel #PF: error_code(0x0002) - página no presente PGD 1470e1067 P4D 0 Ups: 0002 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 20 Comm: cpuhp/0 No contaminado 6.8.0-rc6-dsa+ #57 Nombre de hardware: Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 18/07/2023 RIP: 0010:mutex_lock+0x2e/0x50 ... Seguimiento de llamadas: __die+0x24/0x70 page_fault_oops+0x82/0x160 do_user_addr_fault++0x65 /0x6b0 __pfx___rdmsr_safe_on_cpu+0x10/0x10 exc_page_fault+0x7d/0x170 asm_exc_page_fault+0x26/0x30 mutex_lock+0x2e/0x50 mutex_lock+0x1e/0x50 perf_pmu_migrate_context+0x87/0x1f0 f_event_cpu_offline+0x76/0x90 [idxd] cpuhp_invoke_callback+0xa2/0x4f0 __pfx_perf_event_cpu_offline+0x10/0x10 [idxd] cpuhp_thread_fun+0x98/0x150 smpboot_thread_fn+0x27/0x260 smpboot_thread_fn+0x1af/0x260 __pfx_smpboot_thread_fn+0x10/0x10 kthread+0x103/0x140 __pfx_kthread+0x10/0 x10 ret_from_fork+0x31/0x50 __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 Solucione el problema impidiendo la migración del contexto de rendimiento a un destino no válido. • https://git.kernel.org/stable/c/81dd4d4d6178306ab31db91bdc7353d485bdafce https://git.kernel.org/stable/c/9edd3aa34d50f27b97be30b2ba4a6af0945ff56b https://git.kernel.org/stable/c/023b6390a15a98f9c3aa5e7da78d485d5384a08e https://git.kernel.org/stable/c/f976eca36cdf94e32fa4f865db0e7c427c9aa33c https://git.kernel.org/stable/c/47533176fdcef17b114a6f688bc872901c1ec6bb https://git.kernel.org/stable/c/f221033f5c24659dc6ad7e5cf18fb1b075f4a8be https://access.redhat.com/security/cve/CVE-2024-35989 https://bugzilla.redhat.com/show_bug.cgi?id=2281847 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-35988 – riscv: Fix TASK_SIZE on 64-bit NOMMU
https://notcve.org/view.php?id=CVE-2024-35988
In the Linux kernel, the following vulnerability has been resolved: riscv: Fix TASK_SIZE on 64-bit NOMMU On NOMMU, userspace memory can come from anywhere in physical RAM. The current definition of TASK_SIZE is wrong if any RAM exists above 4G, causing spurious failures in the userspace access routines. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: riscv: corrige TASK_SIZE en NOMMU de 64 bits En NOMMU, la memoria del espacio de usuario puede provenir de cualquier lugar de la RAM física. La definición actual de TASK_SIZE es incorrecta si existe RAM por encima de 4G, lo que provoca fallos falsos en las rutinas de acceso al espacio de usuario. • https://git.kernel.org/stable/c/6bd33e1ece528f67646db33bf97406b747dafda0 https://git.kernel.org/stable/c/04bf2e5f95c1a52e28a7567a507f926efe31c3b6 https://git.kernel.org/stable/c/52e8a42b11078d2aad4b9ba96503d77c7299168b https://git.kernel.org/stable/c/4201b8c8f2c32af321fb50867e68ac6c1cbed4be https://git.kernel.org/stable/c/a0f0dbbb1bc49fa0de18e92c36492ff6d804cdaa https://git.kernel.org/stable/c/efdcfa554b6eb228943ef1dd4d023c606be647d2 https://git.kernel.org/stable/c/6065e736f82c817c9a597a31ee67f0ce4628e948 https://lists.debian.org/debian-lts-announce/2024/06/ •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35987 – riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
https://notcve.org/view.php?id=CVE-2024-35987
In the Linux kernel, the following vulnerability has been resolved: riscv: Fix loading 64-bit NOMMU kernels past the start of RAM commit 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") added logic to allow using RAM below the kernel load address. However, this does not work for NOMMU, where PAGE_OFFSET is fixed to the kernel load address. Since that range of memory corresponds to PFNs below ARCH_PFN_OFFSET, mm initialization runs off the beginning of mem_map and corrupts adjacent kernel memory. Fix this by restoring the previous behavior for NOMMU kernels. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: riscv: se corrigió la carga de kernels NOMMU de 64 bits después del inicio de la confirmación de RAM. 3335068f8721 ("riscv: use páginas PUD/P4D/PGD para el mapeo lineal") se agregó lógica para permitir el uso RAM debajo de la dirección de carga del kernel. Sin embargo, esto no funciona para NOMMU, donde PAGE_OFFSET está fijado a la dirección de carga del kernel. • https://git.kernel.org/stable/c/3335068f87217ea59d08f462187dc856652eea15 https://git.kernel.org/stable/c/b008e327fa570aca210f98c817757649bae56694 https://git.kernel.org/stable/c/ea6628e4e2353978af7e3b4ad4fdaab6149acf3d https://git.kernel.org/stable/c/aea702dde7e9876fb00571a2602f25130847bf0f •