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IronMonkey Threat Research

CVE-2024-36286 HIGH

Published: 2024-06-21 | Last Modified: 2026-08-04 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: acquire rcu_read_lock() in instance_destroy_rcu() syzbot reported that nf_reinject() could be called without rcu_read_lock() : WARNING: suspicious RCU usage 6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0 Not tainted net/netfilter/nfnetlink_queue.c:263 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by syz-executor.4/13427: #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2190 [inline] #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, at: rcu_core+0xa86/0x1830 kernel/rcu/tree.c:2471 #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: nfqnl_flush net/netfilter/nfnetlink_queue.c:405 [inline] #1: ffff88801ca92958 (&inst->lock){+.-.}-{2:2}, at: instance_destroy_rcu+0x30/0x220 net/netfilter/nfnetlink_queue.c:172 stack backtrace: CPU: 0 PID: 13427 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-02060-g5c1672705a1a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712 nf_reinject net/netfilter/nfnetlink_queue.c:323 [inline] nfqnl_reinject+0x6ec/0x1120 net/netfilter/nfnetlink_queue.c:397 nfqnl_flush net/netfilter/nfnetlink_queue.c:410 [inline] instance_destroy_rcu+0x1ae/0x220 net/netfilter/nfnetlink_queue.c:172 rcu_do_batch kernel/rcu/tree.c:2196 [inline] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471 handle_softirqs+0x2d6/0x990 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __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 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 </IRQ> <TASK>

Additional Descriptions (1)

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: netfilter: nfnetlink_queue: adquirir rcu_read_lock() en instancia_destroy_rcu() syzbot informó que se podía llamar a nf_reinject() sin rcu_read_lock() : ADVERTENCIA: uso sospechoso de RCU 6.9.0-rc7-syzkaller -02060-g5c1672705a1a #0 ¡No está contaminado net/netfilter/nfnetlink_queue.c:263 uso sospechoso de rcu_dereference_check()! otra información que podría 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 línea] #0: ffffffff8e334f60 (rcu_callback){....}-{0:0}, en: rcu_do_batch kernel/rcu/tree.c:2190 [en línea] #0 : ffffffff8e334f60 (rcu_callback){....}-{0:0}, en: rcu_core+0xa86/0x1830 kernel/rcu/tree.c:2471 #1: ffff88801ca92958 (&amp;inst-&gt;lock){+.-.} -{2:2}, en: spin_lock_bh include/linux/spinlock.h:356 [en línea] #1: ffff88801ca92958 (&amp;inst-&gt;lock){+.-.}-{2:2}, en: nfqnl_flush net/ netfilter/nfnetlink_queue.c:405 [en línea] #1: ffff88801ca92958 (&amp;inst-&gt;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 línea] 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 línea] nfqnl_reinject+0x6ec/0x1120 net/netfilter/nfnetlink_queue.c:397 nfqnl_flush net/netfilter/nfnetlink_queue.c:410 [en línea] instancia_destroy_rcu+0x1ae/0x220 net/netfilter/nfnetlink_queue.c:172 do_batch kernel/rcu /tree.c:2196 [en línea] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2471 handle_softirqs+0x2d6/0x990 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [en línea] invoke_softirq kernel/softirq .c:428 [en línea] __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 línea] r_interrupción+ 0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043

CVSS Metrics

Base Score: 5.5 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Primary
en NVD-CWE-noinfo

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd36b092ac0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd2dbebd940> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd30864f640> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36afa78c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd384614e00> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd384615100> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b449a80> Operating System
linux linux_kernel 6.10 <built-in method update of dict object at 0x7fd310669d00> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*

References