Vulnerabilidades

*** Pendiente de traducción *** A vulnerability has been found in Sangfor Operation and Maintenance Security Management System up to 3.0.12. The impacted element is an unknown function of the file /fort/audit/get_clip_img of the component HTTP POST Request Handler. Such manipulation of the argument frame/dirno leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

*** Pendiente de traducción *** A flaw has been found in Beetel 777VR1 up to 01.00.09/01.00.09_55. The affected element is an unknown function of the component UART Interface. This manipulation causes improper access controls. It is feasible to perform the attack on the physical device. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

*** Pendiente de traducción *** A vulnerability was detected in Beetel 777VR1 up to 01.00.09/01.00.09_55. Impacted is an unknown function of the component UART Interface. The manipulation results in missing authentication. An attack on the physical device is feasible. This attack is characterized by high complexity. The exploitability is considered difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

*** Pendiente de traducción *** A security vulnerability has been detected in Beetel 777VR1 up to 01.00.09/01.00.09_55. This issue affects some unknown processing of the component UART Interface. The manipulation leads to improper restriction of excessive authentication attempts. It is possible to launch the attack on the physical device. The attack's complexity is rated as high. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

*** Pendiente de traducción *** A weakness has been identified in Beetel 777VR1 up to 01.00.09/01.00.09_55. This vulnerability affects unknown code of the component UART Interface. Executing a manipulation can lead to weak password requirements. The physical device can be targeted for the attack. The attack requires a high level of complexity. It is stated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

*** Pendiente de traducción *** A security flaw has been discovered in Beetel 777VR1 up to 01.00.09/01.00.09_55. This affects an unknown part of the component UART Interface. Performing a manipulation results in information disclosure. The attack may be carried out on the physical device. The attack is considered to have high complexity. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mm/damon/core: remove call_control in inactive contexts<br /> <br /> If damon_call() is executed against a DAMON context that is not running,<br /> the function returns error while keeping the damon_call_control object<br /> linked to the context&amp;#39;s call_controls list. Let&amp;#39;s suppose the object is<br /> deallocated after the damon_call(), and yet another damon_call() is<br /> executed against the same context. The function tries to add the new<br /> damon_call_control object to the call_controls list, which still has the<br /> pointer to the previous damon_call_control object, which is deallocated. <br /> As a result, use-after-free happens.<br /> <br /> This can actually be triggered using the DAMON sysfs interface. It is not<br /> easily exploitable since it requires the sysfs write permission and making<br /> a definitely weird file writes, though. Please refer to the report for<br /> more details about the issue reproduction steps.<br /> <br /> Fix the issue by making two changes. Firstly, move the final<br /> kdamond_call() for cancelling all existing damon_call() requests from<br /> terminating DAMON context to be done before the ctx-&gt;kdamond reset. This<br /> makes any code that sees NULL ctx-&gt;kdamond can safely assume the context<br /> may not access damon_call() requests anymore. Secondly, let damon_call()<br /> to cleanup the damon_call_control objects that were added to the<br /> already-terminated DAMON context, before returning the error.

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback<br /> <br /> octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to<br /> ioq_vector. If request_irq() fails part-way, the rollback loop calls<br /> free_irq() with dev_id set to &amp;#39;oct&amp;#39;, which does not match the original<br /> dev_id and may leave the irqaction registered.<br /> <br /> This can keep IRQ handlers alive while ioq_vector is later freed during<br /> unwind/teardown, leading to a use-after-free or crash when an interrupt<br /> fires.<br /> <br /> Fix the error path to free IRQs with the same ioq_vector dev_id used<br /> during request_irq().

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> lib/buildid: use __kernel_read() for sleepable context<br /> <br /> Prevent a "BUG: unable to handle kernel NULL pointer dereference in<br /> filemap_read_folio".<br /> <br /> For the sleepable context, convert freader to use __kernel_read() instead<br /> of direct page cache access via read_cache_folio(). This simplifies the<br /> faultable code path by using the standard kernel file reading interface<br /> which handles all the complexity of reading file data.<br /> <br /> At the moment we are not changing the code for non-sleepable context which<br /> uses filemap_get_folio() and only succeeds if the target folios are<br /> already in memory and up-to-date. The reason is to keep the patch simple<br /> and easier to backport to stable kernels.<br /> <br /> Syzbot repro does not crash the kernel anymore and the selftests run<br /> successfully.<br /> <br /> In the follow up we will make __kernel_read() with IOCB_NOWAIT work for<br /> non-sleepable contexts. In addition, I would like to replace the<br /> secretmem check with a more generic approach and will add fstest for the<br /> buildid code.

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()<br /> <br /> syzbot was able to crash the kernel in rt6_uncached_list_flush_dev()<br /> in an interesting way [1]<br /> <br /> Crash happens in list_del_init()/INIT_LIST_HEAD() while writing<br /> list-&gt;prev, while the prior write on list-&gt;next went well.<br /> <br /> static inline void INIT_LIST_HEAD(struct list_head *list)<br /> {<br /> WRITE_ONCE(list-&gt;next, list); // This went well<br /> WRITE_ONCE(list-&gt;prev, list); // Crash, @list has been freed.<br /> }<br /> <br /> Issue here is that rt6_uncached_list_del() did not attempt to lock<br /> ul-&gt;lock, as list_empty(&amp;rt-&gt;dst.rt_uncached) returned<br /> true because the WRITE_ONCE(list-&gt;next, list) happened on the other CPU.<br /> <br /> We might use list_del_init_careful() and list_empty_careful(),<br /> or make sure rt6_uncached_list_del() always grabs the spinlock<br /> whenever rt-&gt;dst.rt_uncached_list has been set.<br /> <br /> A similar fix is neeed for IPv4.<br /> <br /> [1]<br /> <br /> BUG: KASAN: slab-use-after-free in INIT_LIST_HEAD include/linux/list.h:46 [inline]<br /> BUG: KASAN: slab-use-after-free in list_del_init include/linux/list.h:296 [inline]<br /> BUG: KASAN: slab-use-after-free in rt6_uncached_list_flush_dev net/ipv6/route.c:191 [inline]<br /> BUG: KASAN: slab-use-after-free in rt6_disable_ip+0x633/0x730 net/ipv6/route.c:5020<br /> Write of size 8 at addr ffff8880294cfa78 by task kworker/u8:14/3450<br /> <br /> CPU: 0 UID: 0 PID: 3450 Comm: kworker/u8:14 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)}<br /> Tainted: [L]=SOFTLOCKUP<br /> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025<br /> Workqueue: netns cleanup_net<br /> Call Trace:<br /> <br /> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120<br /> print_address_description mm/kasan/report.c:378 [inline]<br /> print_report+0xca/0x240 mm/kasan/report.c:482<br /> kasan_report+0x118/0x150 mm/kasan/report.c:595<br /> INIT_LIST_HEAD include/linux/list.h:46 [inline]<br /> list_del_init include/linux/list.h:296 [inline]<br /> rt6_uncached_list_flush_dev net/ipv6/route.c:191 [inline]<br /> rt6_disable_ip+0x633/0x730 net/ipv6/route.c:5020<br /> addrconf_ifdown+0x143/0x18a0 net/ipv6/addrconf.c:3853<br /> addrconf_notify+0x1bc/0x1050 net/ipv6/addrconf.c:-1<br /> notifier_call_chain+0x19d/0x3a0 kernel/notifier.c:85<br /> call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]<br /> call_netdevice_notifiers net/core/dev.c:2282 [inline]<br /> netif_close_many+0x29c/0x410 net/core/dev.c:1785<br /> unregister_netdevice_many_notify+0xb50/0x2330 net/core/dev.c:12353<br /> ops_exit_rtnl_list net/core/net_namespace.c:187 [inline]<br /> ops_undo_list+0x3dc/0x990 net/core/net_namespace.c:248<br /> cleanup_net+0x4de/0x7b0 net/core/net_namespace.c:696<br /> process_one_work kernel/workqueue.c:3257 [inline]<br /> process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340<br /> worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421<br /> kthread+0x711/0x8a0 kernel/kthread.c:463<br /> ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158<br /> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246<br /> <br /> <br /> Allocated by task 803:<br /> kasan_save_stack mm/kasan/common.c:57 [inline]<br /> kasan_save_track+0x3e/0x80 mm/kasan/common.c:78<br /> unpoison_slab_object mm/kasan/common.c:340 [inline]<br /> __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366<br /> kasan_slab_alloc include/linux/kasan.h:253 [inline]<br /> slab_post_alloc_hook mm/slub.c:4953 [inline]<br /> slab_alloc_node mm/slub.c:5263 [inline]<br /> kmem_cache_alloc_noprof+0x18d/0x6c0 mm/slub.c:5270<br /> dst_alloc+0x105/0x170 net/core/dst.c:89<br /> ip6_dst_alloc net/ipv6/route.c:342 [inline]<br /> icmp6_dst_alloc+0x75/0x460 net/ipv6/route.c:3333<br /> mld_sendpack+0x683/0xe60 net/ipv6/mcast.c:1844<br /> mld_send_cr net/ipv6/mcast.c:2154 [inline]<br /> mld_ifc_work+0x83e/0xd60 net/ipv6/mcast.c:2693<br /> process_one_work kernel/workqueue.c:3257 [inline]<br /> process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340<br /> worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421<br /> kthread+0x711/0x8a0 kernel/kthread.c:463<br /> ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158<br /> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entr<br /> ---truncated---

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> block: zero non-PI portion of auto integrity buffer<br /> <br /> The auto-generated integrity buffer for writes needs to be fully<br /> initialized before being passed to the underlying block device,<br /> otherwise the uninitialized memory can be read back by userspace or<br /> anyone with physical access to the storage device. If protection<br /> information is generated, that portion of the integrity buffer is<br /> already initialized. The integrity data is also zeroed if PI generation<br /> is disabled via sysfs or the PI tuple size is 0. However, this misses<br /> the case where PI is generated and the PI tuple size is nonzero, but the<br /> metadata size is larger than the PI tuple. In this case, the remainder<br /> ("opaque") of the metadata is left uninitialized.<br /> Generalize the BLK_INTEGRITY_CSUM_NONE check to cover any case when the<br /> metadata is larger than just the PI tuple.

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/vmwgfx: Fix KMS with 3D on HW version 10<br /> <br /> HW version 10 does not have GB Surfaces so there is no backing buffer for<br /> surface backed FBs. This would result in a nullptr dereference and crash<br /> the driver causing a black screen.