{ "id": "CVE-2024-36286", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-06-21T11:15:10.277", "lastModified": "2024-07-15T07:15:05.140", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_queue: acquire rcu_read_lock() in instance_destroy_rcu()\n\nsyzbot reported that nf_reinject() could be called without rcu_read_lock() :\n\nWARNING: suspicious RCU usage\n6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0 Not tainted\n\nnet/netfilter/nfnetlink_queue.c:263 suspicious rcu_dereference_check() usage!\n\nother info that might help us debug this:\n\nrcu_scheduler_active = 2, debug_locks = 1\n2 locks held by syz-executor.4/13427:\n #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]\n #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2190 [inline]\n #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_core+0xa86/0x1830 kernel/rcu/tree.c:2471\n #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline]\n #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: nfqnl_flush net/netfilter/nfnetlink_queue.c:405 [inline]\n #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: instance_destroy_rcu+0x30/0x220 net/netfilter/nfnetlink_queue.c:172\n\nstack backtrace:\nCPU: 0 PID: 13427 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\nCall Trace:\n \n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114\n lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712\n nf_reinject net/netfilter/nfnetlink_queue.c:323 [inline]\n nfqnl_reinject+0x6ec/0x1120 net/netfilter/nfnetlink_queue.c:397\n nfqnl_flush net/netfilter/nfnetlink_queue.c:410 [inline]\n instance_destroy_rcu+0x1ae/0x220 net/netfilter/nfnetlink_queue.c:172\n rcu_do_batch kernel/rcu/tree.c:2196 [inline]\n rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471\n handle_softirqs+0x2d6/0x990 kernel/softirq.c:554\n __do_softirq kernel/softirq.c:588 [inline]\n invoke_softirq kernel/softirq.c:428 [inline]\n __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:649\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043\n \n " }, { "lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nfnetlink_queue: adquirir rcu_read_lock() en instancia_destroy_rcu() syzbot inform\u00f3 que se pod\u00eda llamar a nf_reinject() sin rcu_read_lock() : ADVERTENCIA: uso sospechoso de RCU 6.9.0-rc7-syzkaller -02060-g5c1672705a1a #0 \u00a1No est\u00e1 contaminado net/netfilter/nfnetlink_queue.c:263 uso sospechoso de rcu_dereference_check()! otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: rcu_scheduler_active = 2, debug_locks = 1 2 bloqueos mantenidos por syz-executor.4/13427: #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, en: rcu_lock_acquire include/linux/rcupdate.h:329 [en l\u00ednea] #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, en: rcu_do_batch kernel/rcu/tree.c:2190 [en l\u00ednea] #0 : ffffffff8e334f60 (rcu_callback){....}-{0:0}, en: rcu_core+0xa86/0x1830 kernel/rcu/tree.c:2471 #1: ffff88801ca92958 (&inst->lock){+.-.} -{2:2}, en: spin_lock_bh include/linux/spinlock.h:356 [en l\u00ednea] #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, en: nfqnl_flush net/ netfilter/nfnetlink_queue.c:405 [en l\u00ednea] #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, en: instancia_destroy_rcu+0x30/0x220 net/netfilter/nfnetlink_queue.c:172 pila backtrace: CPU: 0 PID: 13427 Comm: syz-executor.4 No contaminado 6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Llamada de Google 02/04/2024 Trace: __dump_stack lib/dump_stack.c: 88 [en l\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c: 114 Lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c: 6712 nf_filt. C :323 [en l\u00ednea] nfqnl_reinject+0x6ec/0x1120 net/netfilter/nfnetlink_queue.c:397 nfqnl_flush net/netfilter/nfnetlink_queue.c:410 [en l\u00ednea] instancia_destroy_rcu+0x1ae/0x220 net/netfilter/nfnetlink_queue.c:172 do_batch kernel/rcu /tree.c:2196 [en l\u00ednea] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471 handle_softirqs+0x2d6/0x990 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [en l\u00ednea] invoke_softirq kernel/softirq .c:428 [en l\u00ednea] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [en l\u00ednea] r_interrupci\u00f3n+ 0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 " } ], "metrics": {}, "references": [ { "url": "https://git.kernel.org/stable/c/215df6490e208bfdd5b3012f5075e7f8736f3e7a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/25ea5377e3d2921a0f96ae2551f5ab1b36825dd4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/3989b817857f4890fab9379221a9d3f52bf5c256", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/68f40354a3851df46c27be96b84f11ae193e36c5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/8658bd777cbfcb0c13df23d0ea120e70517761b9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/8f365564af898819a523f1a8cf5c6ce053e9f718", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/dc21c6cc3d6986d938efbf95de62473982c98dec", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" }, { "url": "https://git.kernel.org/stable/c/e01065b339e323b3dfa1be217fd89e9b3208b0ab", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67" } ] }