CVE-2026-97547— XFS inode交换范围重链接标志清除缺陷
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。
在 Linux 内核中，已修复以下漏洞： xfs: 修复 INO1_WRITTEN 场景下 exchange-range 操作中 reflink 标志清除的问题 当交换两个完整的文件范围时，函数 可以在恰好仅有一方被标记为 reflink 的情况下，将该 reflink inode 标志从拥有它的文件转移到另一个文件。这一行为基于一个假设：即文件内容（从而所有共享的扩展区 extents）都会被完整交换。 然而，当设置了 标志时，该假设不再成立。此时， 可能会跳过来自 file1 的空洞（hole）或未写入（unw
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 966ceafc7a437105ecfe1cadb3747b2965a260ca< 56f87ac2b9543be2be529b831666682e6df4bc40 |
affected |
966ceafc7a437105ecfe1cadb3747b2965a260ca< fac32b9950a2aab3f8659d23b2947b8fb305c3fe |
affected | ||
966ceafc7a437105ecfe1cadb3747b2965a260ca< 8ae30b9a8c207f9bd03a98eda7b5d641daa79bdb |
affected | ||
966ceafc7a437105ecfe1cadb3747b2965a260ca< a23eca88448e52eb1a81549862df7adce794fafb |
affected | ||
6.10 |
affected | ||
< 6.10 |
unaffected | ||
6.12.111≤ 6.12.* |
unaffected | ||
6.18.53≤ 6.18.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2026-97547 基础信息
漏洞信息
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Vulnerability Title
xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN
When exchanging two full-file ranges, xmi_can_exchange_reflink_flags()
can move the reflink inode flag from the file that currently has it to
the other file, as long as exactly one side is marked. This assumes
that the file contents, and therefore all shared extents, are exchanged.
That assumption is not true when XFS_EXCHMAPS_INO1_WRITTEN is set.
xfs_exchmaps_can_skip_mapping() can skip hole and unwritten mappings
from file1, so an exchange can complete without moving every mapping
that the earlier flag-swap decision accounted for. In that case the
post-operation cleanup can clear the reflink flag from an inode that
still owns shared written extents. Later writes then take the
non-reflink write path and may update blocks that should still have
been protected by CoW, which shows up as data corruption between
reflink-related files.
Fix this by disabling the reflink flag exchange whenever
XFS_EXCHMAPS_INO1_WRITTEN is requested. The contents exchange can still
proceed; the conservative outcome is that both inodes keep the reflink
flag. The regular reflink flag cleanup path can drop the extra flag
later once the inode no longer has shared extents.
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-2026-97547 的公开POC
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|---|
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CVE-2026-97547 补丁与修复 (4)
同批安全公告 · Linux · 2026-09-25 · 共 372 条
| CVE-2026-100075 | 9.8 CRITICAL | RDMA/srpt：srpt_alloc_rw_ctxs() 未释放计数器修复 |
| CVE-2026-97957 | 8.8 HIGH | hinic 邮箱段缓冲区溢出漏洞 |
| CVE-2026-97527 | 8.8 HIGH | qla2xxx SCSI驱动程序 NVMe未解决上下文列表竞争条件漏洞 |
| CVE-2026-97528 | 8.8 HIGH | QLogic qla2xxx驱动LS拒绝错误NVMe内存泄漏漏洞 |
| CVE-2026-97555 | 8.8 HIGH | smb客户端：修复DACL所有者/组重写中的堆溢出漏洞 |
| CVE-2026-98115 | 8.8 HIGH | ksmbd 注销期间会话安全排空漏洞 |
| CVE-2026-97525 | 8.2 HIGH | x86/mm/pat：内核页表分裂页表分配漏洞 |
| CVE-2026-97573 | 8.1 HIGH | bnxt_en 驱动 bnxt_rx_ring_reset 缓冲区分配失败漏洞 |
| CVE-2026-98070 | 8.1 HIGH | Linux RDS 模块远程代码执行漏洞 |
| CVE-2026-97570 | 8.1 HIGH | bnxt_en: 修复因SW TPA ID绑定问题导致的崩溃漏洞 |
| CVE-2026-98069 | 8.1 HIGH | Net/RDS rds_conn_shutdown() 快速路径锁获取漏洞 |
| CVE-2026-98130 | 8.1 HIGH | SCTP定时器启动竞争条件漏洞 |
| CVE-2026-98116 | 7.8 HIGH | ALSA: PCM内存映射与缓冲区重新分配序列化以修复页面UAF漏洞 |
| CVE-2026-97903 | 7.8 HIGH | exit: proc_flush_pid 线程 PID 持引越界漏洞 |
| CVE-2026-97548 | 7.8 HIGH | XFS rtrmap和rtrefcount _maxlevels_ondisk函数漏洞 |
| CVE-2026-97611 | 7.8 HIGH | Open vSwitch 使用后释放漏洞 |
| CVE-2026-97612 | 7.8 HIGH | MPLS 协议栈在弹出标签时未清除 inner_protocol |
| CVE-2026-98073 | 7.8 HIGH | Linux 内核网络命名空间更改竞态条件漏洞 |
| CVE-2026-97602 | 7.8 HIGH | Linux内核inet模块队列失效前刷新漏洞 |
| CVE-2026-97577 | 7.8 HIGH | Rockchip RK3588 媒体引擎 AV1 帧容量超限漏洞 |
显示前 20 条，共 372 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-97547
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