CVE-2026-98358— IB/iser 拒绝未注册方向的远程无效化
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
以下是该漏洞描述信息的中文翻译： 在 Linux 内核中，已修复以下漏洞： IB/iser：拒绝拒绝针对未注册方向的远程无效化请求 数据完全作为即时数据（immediate data）发送的写命令未进行注册。 函数走 DMA 密钥路径，并将 留为 NULL，而 已经设置了 。 仅检查 ，并将描述符传递给 ，后者读取 。当目标设备（target）对这类命令响应带有 IB_WR_SEND_WITH_INV 的 RDMA 操作时，会导致发起方（initiator）故障。故意不注册这些命令。 该函数在目标设备发送发起方未请
可能的 ATT&CK 技术 2 AI
T1203 · Exploitation for Client Execution T1210 · Exploitation of Remote Services影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 59caaed7a72a0e3750dfb84636dae6b781559310< 198e4db9add54a50cce60a5d80b8f0ee5456b65a |
affected |
59caaed7a72a0e3750dfb84636dae6b781559310< b9e37452915feaa8422af87dea5d0c16a7d1ff13 |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< 19ddd4af7fce9200e70882f622011e9dd130f427 |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< 9d145a2d8d6f8f2cc460b80df41870819048f2a0 |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< b4d278c91209931199db9c0836dc2e21a7593dad |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< 6ed3ebaff3345837f0528d85bd39ce573c7b9a41 |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< ceecf3f9c322fc6937a66682942a26ad13a34a07 |
affected | ||
59caaed7a72a0e3750dfb84636dae6b781559310< d85f0f0a7c85756fc992c70d869706f19dac9259 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-98358 基础信息
漏洞信息
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Vulnerability Title
IB/iser: reject a remote invalidation of an unregistered direction
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
IB/iser: reject a remote invalidation of an unregistered direction
A write command whose data is sent entirely as immediate data is not
registered. iser_reg_mem_fastreg() takes the DMA key path and leaves
rdma_reg[ISER_DIR_OUT].desc at NULL, while iser_dma_map_task_data() has
already set dir[ISER_DIR_OUT].
iser_check_remote_inv() looks at dir[] alone and hands the descriptor to
iser_inv_desc(), which reads desc->sig_protected. A target that answers
such a command with IB_WR_SEND_WITH_INV faults the initiator.
Leaving those commands unregistered is deliberate.
The same function already terminates the connection when a target sends
a remote invalidation the initiator did not ask for. A target that
invalidates a direction that was never registered is in the same class,
so give it the same answer.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 UID: 0 PID: 40 Comm: kworker/u8:2 Not tainted 7.2.0-rc5-ISERHOST-gf5098b6bae76-dirty #3 PREEMPT(lazy)
Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: rxe_wq do_work
RIP: 0010:iser_task_rsp+0x6d6/0xec0
Code: 48 c1 ea 03 80 3c 02 00 0f 85 ba 06 00 00 48 8b 9b 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 76 06 00 00 80 7b 20 00 0f 84 3d 04
RSP: 0018:ffff88811b008db8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000001848
RDX: 0000000000000004 RSI: 1ffff11021587b12 RDI: 0000000000000020
RBP: ffff88810adc1ae4 R08: ffff888109b7f860 R09: ffffffff90a922c0
R10: ffff88810adc1a1c R11: 000000000000003c R12: ffff888109b7f800
R13: ffff88810adc1acc R14: ffff888109b7f820 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88818a676000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005afe2b CR3: 000000010af23005 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
<IRQ>
__ib_process_cq+0xe1/0x390
ib_poll_handler+0x6e/0x200
irq_poll_softirq+0x1df/0x480
? clockevents_program_event+0x2ba/0x860
? __pfx_irq_poll_softirq+0x10/0x10
handle_softirqs+0x18e/0x590
? __pfx_handle_softirqs+0x10/0x10
? __hrtimer_rearm_deferred+0x156/0x450
do_softirq+0x3b/0x60
</IRQ>
<TASK>
__local_bh_enable_ip+0x61/0x70
__alloc_skb+0x732/0x890
? _raw_spin_lock_irqsave+0x85/0xe0
? __pfx___alloc_skb+0x10/0x10
? _raw_read_unlock_irqrestore+0x16/0x50
rxe_init_packet+0x16b/0x4f0
prepare_ack_packet+0xb8/0x830
rxe_receiver+0x499/0x9980
? __pfx_rxe_receiver+0x10/0x10
? rxe_completer+0x29e5/0x38c0
? hrtimer_start_range_ns_common+0x75f/0x1730
? hrtimer_start_range_ns+0xa6/0x2c0
? __pfx__raw_spin_lock_irqsave+0x10/0x10
? __pfx_rxe_receiver+0x10/0x10
do_work+0x144/0x470
process_one_work+0x633/0x1030
? assign_work+0x11d/0x370
worker_thread+0x45b/0xd10
? __pfx_worker_thread+0x10/0x10
kthread+0x2c6/0x3b0
? recalc_sigpending+0x15c/0x1e0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x36e/0x5a0
? __pfx_ret_from_fork+0x10/0x10
? __switch_to+0x572/0xdd0
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-98358 的公开POC
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|---|
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CVE-2026-98358 补丁与修复 (8)
同批安全公告 · Linux · 2026-10-06 · 共 208 条
| CVE-2026-98323 | 9.8 CRITICAL | RDMA/siw 分片头拷贝边界漏洞 |
| CVE-2026-98365 | 9.8 CRITICAL | RDMA/rxe mr_check_range() 整数溢出导致越界访问漏洞 |
| CVE-2026-98282 | 8.8 HIGH | PowerPC IOMMU iommu_tce_check_ioba 溢出验证修复 |
| CVE-2026-98283 | 8.8 HIGH | KVM: PPC Book3S HV tlbie_all_lpid 使用后释放漏洞 |
| CVE-2026-98339 | 8.8 HIGH | cfg80211 移除过时条目时过滤BSS类型漏洞 |
| CVE-2026-98171 | 8.8 HIGH | smb 客户端修复复合 PDU 中 next_buffer UAF 及 NextCommand 越界漏洞 |
| CVE-2026-98261 | 8.1 HIGH | CIFS 服务器 cifs_chan_skip_or_disable() 函数中的使用后释放漏洞 |
| CVE-2026-98357 | 8.1 HIGH | IB/isert 释放连接前等待控制PDU完成漏洞 |
| CVE-2026-98239 | 8.1 HIGH | lan743x 网卡 RX 校验和使用后释放漏洞 |
| CVE-2026-98341 | 7.8 HIGH | WiFi: cfg80211驱动扫描请求释放漏洞 |
| CVE-2026-98281 | 7.8 HIGH | futex vfork时私有哈希分配漏洞 |
| CVE-2026-98324 | 7.8 HIGH | DMA引擎 pxa 硬件描述符重复计数漏洞 |
| CVE-2026-98320 | 7.8 HIGH | netfilter flowtable 在流释放前持有 ct 引用漏洞 |
| CVE-2026-98228 | 7.8 HIGH | MIPS EQE4 系统内核配置错误 |
| CVE-2026-98229 | 7.8 HIGH | Linux内核xfrm安全路径重置前保存输入状态数据 |
| CVE-2026-98318 | 7.8 HIGH | SMB客户端修复相对原生符号链接目标验证漏洞 |
| CVE-2026-98315 | 7.8 HIGH | NTFS运行列表更新缺少锁保护 |
| CVE-2026-98260 | 7.8 HIGH | exec 清理 POSIX 定时器漏洞 |
| CVE-2026-98256 | 7.8 HIGH | Signal 执行函数竞争条件漏洞 |
| CVE-2026-98258 | 7.8 HIGH | Linux内核posix-cpu-timers释放过期列表定时器漏洞 |
显示前 20 条，共 208 条。 查看全部 → →
IV. Related Vulnerabilities
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