CVSS: 8.4EPSS: 0%CPEs: 2EXPL: 0CVE-2024-26945 – crypto: iaa - Fix nr_cpus < nr_iaa case
https://notcve.org/view.php?id=CVE-2024-26945
In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix nr_cpus < nr_iaa case If nr_cpus < nr_iaa, the calculated cpus_per_iaa will be 0, which causes a divide-by-0 in rebalance_wq_table(). Make sure cpus_per_iaa is 1 in that case, and also in the nr_iaa == 0 case, even though cpus_per_iaa is never used if nr_iaa == 0, for paranoia. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: crypto: iaa - Corrige el caso nr_cpus < nr_iaa Si nr_cpus < nr_iaa, el cpus_per_iaa calculado será 0, lo que provoca una división por 0 en rebalance_wq_table(). Asegúrese de que cpus_per_iaa sea 1 en ese caso, y también en el caso de nr_iaa == 0, aunque cpus_per_iaa nunca se use si nr_iaa == 0, para paranoia. • https://git.kernel.org/stable/c/a5ca1be7f9817de4e93085778b3ee2219bdc2664 https://git.kernel.org/stable/c/5a7e89d3315d1be86aff8a8bf849023cda6547f7 • CWE-369: Divide By Zero •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-26944 – btrfs: zoned: fix use-after-free in do_zone_finish()
https://notcve.org/view.php?id=CVE-2024-26944
In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix use-after-free in do_zone_finish() Shinichiro reported the following use-after-free triggered by the device replace operation in fstests btrfs/070. BTRFS info (device nullb1): scrub: finished on devid 1 with status: 0 ================================================================== BUG: KASAN: slab-use-after-free in do_zone_finish+0x91a/0xb90 [btrfs] Read of size 8 at addr ffff8881543c8060 by task btrfs-cleaner/3494007 CPU: 0 PID: 3494007 Comm: btrfs-cleaner Tainted: G W 6.8.0-rc5-kts #1 Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020 Call Trace: <TASK> dump_stack_lvl+0x5b/0x90 print_report+0xcf/0x670 ? __virt_addr_valid+0x200/0x3e0 kasan_report+0xd8/0x110 ? do_zone_finish+0x91a/0xb90 [btrfs] ? do_zone_finish+0x91a/0xb90 [btrfs] do_zone_finish+0x91a/0xb90 [btrfs] btrfs_delete_unused_bgs+0x5e1/0x1750 [btrfs] ? __pfx_btrfs_delete_unused_bgs+0x10/0x10 [btrfs] ? • https://git.kernel.org/stable/c/34ca809e055eca5cfe63d9c7efbf80b7c21b4e57 https://git.kernel.org/stable/c/1ec17ef59168a1a6f1105f5dc517f783839a5302 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-26938 – drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode()
https://notcve.org/view.php?id=CVE-2024-26938
In the Linux kernel, the following vulnerability has been resolved: drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode() If we have no VBT, or the VBT didn't declare the encoder in question, we won't have the 'devdata' for the encoder. Instead of oopsing just bail early. We won't be able to tell whether the port is DP++ or not, but so be it. (cherry picked from commit 26410896206342c8a80d2b027923e9ee7d33b733) En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode() Si no tenemos VBT, o el VBT no declaró el codificador en cuestión, no tendremos los 'devdata' para el codificador. En lugar de huir, simplemente sal de la cárcel antes de tiempo. No podremos saber si el puerto es DP++ o no, pero que así sea. (cereza escogida del compromiso 26410896206342c8a80d2b027923e9ee7d33b733) • https://git.kernel.org/stable/c/72e4d3fb72e9f0f016946158a7d95304832768e6 https://git.kernel.org/stable/c/a891add409e3bc381f4f68c2ce9d953f1865cb1f https://git.kernel.org/stable/c/f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0 https://git.kernel.org/stable/c/94cf2fb6feccd625e5b4e23e1b70f39a206f82ac https://git.kernel.org/stable/c/32e39bab59934bfd3f37097d4dd85ac5eb0fd549 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-26937 – drm/i915/gt: Reset queue_priority_hint on parking
https://notcve.org/view.php?id=CVE-2024-26937
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Reset queue_priority_hint on parking Originally, with strict in order execution, we could complete execution only when the queue was empty. Preempt-to-busy allows replacement of an active request that may complete before the preemption is processed by HW. If that happens, the request is retired from the queue, but the queue_priority_hint remains set, preventing direct submission until after the next CS interrupt is processed. This preempt-to-busy race can be triggered by the heartbeat, which will also act as the power-management barrier and upon completion allow us to idle the HW. We may process the completion of the heartbeat, and begin parking the engine before the CS event that restores the queue_priority_hint, causing us to fail the assertion that it is MIN. <3>[ 166.210729] __engine_park:283 GEM_BUG_ON(engine->sched_engine->queue_priority_hint != (-((int)(~0U >> 1)) - 1)) <0>[ 166.210781] Dumping ftrace buffer: <0>[ 166.210795] --------------------------------- ... <0>[ 167.302811] drm_fdin-1097 2..s1. 165741070us : trace_ports: 0000:00:02.0 rcs0: promote { ccid:20 1217:2 prio 0 } <0>[ 167.302861] drm_fdin-1097 2d.s2. 165741072us : execlists_submission_tasklet: 0000:00:02.0 rcs0: preempting last=1217:2, prio=0, hint=2147483646 <0>[ 167.302928] drm_fdin-1097 2d.s2. 165741072us : __i915_request_unsubmit: 0000:00:02.0 rcs0: fence 1217:2, current 0 <0>[ 167.302992] drm_fdin-1097 2d.s2. 165741073us : __i915_request_submit: 0000:00:02.0 rcs0: fence 3:4660, current 4659 <0>[ 167.303044] drm_fdin-1097 2d.s1. 165741076us : execlists_submission_tasklet: 0000:00:02.0 rcs0: context:3 schedule-in, ccid:40 <0>[ 167.303095] drm_fdin-1097 2d.s1. 165741077us : trace_ports: 0000:00:02.0 rcs0: submit { ccid:40 3:4660* prio 2147483646 } <0>[ 167.303159] kworker/-89 11..... 165741139us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence c90:2, current 2 <0>[ 167.303208] kworker/-89 11..... 165741148us : __intel_context_do_unpin: 0000:00:02.0 rcs0: context:c90 unpin <0>[ 167.303272] kworker/-89 11..... 165741159us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence 1217:2, current 2 <0>[ 167.303321] kworker/-89 11..... 165741166us : __intel_context_do_unpin: 0000:00:02.0 rcs0: context:1217 unpin <0>[ 167.303384] kworker/-89 11..... 165741170us : i915_request_retire.part.0: 0000:00:02.0 rcs0: fence 3:4660, current 4660 <0>[ 167.303434] kworker/-89 11d..1. 165741172us : __intel_context_retire: 0000:00:02.0 rcs0: context:1216 retire runtime: { total:56028ns, avg:56028ns } <0>[ 167.303484] kworker/-89 11..... 165741198us : __engine_park: 0000:00:02.0 rcs0: parked <0>[ 167.303534] <idle>-0 5d.H3. 165741207us : execlists_irq_handler: 0000:00:02.0 rcs0: semaphore yield: 00000040 <0>[ 167.303583] kworker/-89 11..... 165741397us : __intel_context_retire: 0000:00:02.0 rcs0: context:1217 retire runtime: { total:325575ns, avg:0ns } <0>[ 167.303756] kworker/-89 11..... 165741777us : __intel_context_retire: 0000:00:02.0 rcs0: context:c90 retire runtime: { total:0ns, avg:0ns } <0>[ 167.303806] kworker/-89 11..... 165742017us : __engine_park: __engine_park:283 GEM_BUG_ON(engine->sched_engine->queue_priority_hint ! • https://git.kernel.org/stable/c/22b7a426bbe1ebe1520f92da4cd1617d1e1b5fc4 https://git.kernel.org/stable/c/67944e6db656bf1e986aa2a359f866f851091f8a https://git.kernel.org/stable/c/fe34587acc995e7b1d7a5d3444a0736721ec32b3 https://git.kernel.org/stable/c/ac9b6b3e8d1237136c8ebf0fa1ce037dd7e2948f https://git.kernel.org/stable/c/7eab7b021835ae422c38b968d5cc60e99408fb62 https://git.kernel.org/stable/c/3b031e4fcb2740988143c303f81f69f18ce86325 https://git.kernel.org/stable/c/aed034866a08bb7e6e34d50a5629a4d23fe83703 https://git.kernel.org/stable/c/8fd9b0ce8c26533fe4d5d15ea15bbf7b9 •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2024-26934 – USB: core: Fix deadlock in usb_deauthorize_interface()
https://notcve.org/view.php?id=CVE-2024-26934
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix deadlock in usb_deauthorize_interface() Among the attribute file callback routines in drivers/usb/core/sysfs.c, the interface_authorized_store() function is the only one which acquires a device lock on an ancestor device: It calls usb_deauthorize_interface(), which locks the interface's parent USB device. The will lead to deadlock if another process already owns that lock and tries to remove the interface, whether through a configuration change or because the device has been disconnected. As part of the removal procedure, device_del() waits for all ongoing sysfs attribute callbacks to complete. But usb_deauthorize_interface() can't complete until the device lock has been released, and the lock won't be released until the removal has finished. The mechanism provided by sysfs to prevent this kind of deadlock is to use the sysfs_break_active_protection() function, which tells sysfs not to wait for the attribute callback. Reported-and-tested by: Yue Sun <samsun1006219@gmail.com> Reported by: xingwei lee <xrivendell7@gmail.com> En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: USB: core: corrige el punto muerto en usb_deauthorize_interface() Entre las rutinas de devolución de llamada de archivos de atributos en drivers/usb/core/sysfs.c, la función interface_authorized_store() es la única que adquiere un bloqueo de dispositivo en un dispositivo antecesor: llama a usb_deauthorize_interface(), que bloquea el dispositivo USB principal de la interfaz. Esto conducirá a un punto muerto si otro proceso ya posee ese bloqueo e intenta eliminar la interfaz, ya sea mediante un cambio de configuración o porque el dispositivo se ha desconectado. Como parte del procedimiento de eliminación, device_del() espera a que se completen todas las devoluciones de llamadas de atributos sysfs en curso. • https://git.kernel.org/stable/c/310d2b4124c073a2057ef9d952d4d938e9b1dfd9 https://git.kernel.org/stable/c/8cbdd324b41528994027128207fae8100dff094f https://git.kernel.org/stable/c/12d6a5681a0a5cecc2af7860f0a1613fa7c6e947 https://git.kernel.org/stable/c/e451709573f8be904a8a72d0775bf114d7c291d9 https://git.kernel.org/stable/c/1b175bc579f46520b11ecda443bcd2ee4904f66a https://git.kernel.org/stable/c/ab062fa3dc69aea88fe62162c5881ba14b50ecc5 https://git.kernel.org/stable/c/122a06f1068bf5e39089863f4f60b1f5d4273384 https://git.kernel.org/stable/c/dbdf66250d2d33e8b27352fcb901de79f • CWE-667: Improper Locking •