CVE-2026-80712— Linux kernel 安全漏洞
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。
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.15版本存在安全漏洞，该漏洞源于SPI-NAND驱动中的qcom_spi_send_cmdaddr()函数在执行SET_FEATURE命令后才将功能值写入NAND_FLASH_FEATURES寄存器，导致差一错误，可能造成OTP模式被错误启用，从而使闪存不可用、设备无法启动。
可能的 ATT&CK 技术 1 AI
T1578 · Modify Cloud Compute Infrastructure影响版本矩阵 8
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 7304d1909080ef0c9da703500a97f46c98393fcd< 581e5166f0780103dc91c0d8ebc801f9af4824b0 |
affected |
7304d1909080ef0c9da703500a97f46c98393fcd< 3ba021079ef2ac6e21e3547328496ac42d22b56a |
affected | ||
7304d1909080ef0c9da703500a97f46c98393fcd< 8fd62901d6bf03f274a49dd0060793cc07dd51b0 |
affected | ||
6.15 |
affected | ||
< 6.15 |
unaffected | ||
6.18.44≤ 6.18.* |
unaffected | ||
7.1.8≤ 7.1.* |
unaffected | ||
7.2≤ * |
unaffected |
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一、 漏洞 CVE-2026-80712 基础信息
漏洞信息
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Vulnerability Title
spi: spi-qpic-snand: write the feature value before executing SET_FEATURE
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
spi: spi-qpic-snand: write the feature value before executing SET_FEATURE
qcom_spi_send_cmdaddr() programs NAND_FLASH_CMD/NAND_EXEC_CMD and submits
the descriptors, which makes the controller execute the command
immediately. For SPINAND_SET_FEATURE the value to be written is only
placed into NAND_FLASH_FEATURES afterwards, by qcom_spi_io_op(), in a
second submission - so the chip is programmed with whatever that register
happened to hold from a previous operation, and the intended value is only
applied by the *next* SET_FEATURE.
Measured on a TP-Link Archer AX55 v1 (IPQ5018, ESMT F50L1G41LB): writing
0x40 to the configuration register (0xb0) leaves the chip at 0x00, and the
subsequent write of 0x00 leaves it at 0x40 - every write lands one
operation late.
This stayed unnoticed until v6.18 added SPI-NAND OTP support together
with OTP entries for ESMT chips. spinand_otp_rw() enables OTP mode,
reads, and disables it again, and mtd_otp_nvmem_add() does this during
MTD registration. With the off-by-one, the "disable" write actually
applies the previously requested value, so CFG_OTP_ENABLE ends up set:
the chip stays in OTP mode, every subsequent array read returns the OTP
area instead of the array (UBI reports an empty device) and all writes
fail with -EIO because the OTP area is write protected. On this board
that makes the whole flash unusable and the device unbootable.
Write the feature value into NAND_FLASH_FEATURES as part of the same
transaction, before NAND_EXEC_CMD. While at it, copy only the bytes the
operation actually carries - the previous code dereferenced a 4-byte
pointer on a one-byte buffer (spinand->scratchbuf).
With this patch the flash contents read back bit-identical to a
known-good dump of the same board taken under the vendor firmware
(md5-verified across partitions), and writes work.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.15版本存在安全漏洞，该漏洞源于SPI-NAND驱动中的qcom_spi_send_cmdaddr()函数在执行SET_FEATURE命令后才将功能值写入NAND_FLASH_FEATURES寄存器，导致差一错误，可能造成OTP模式被错误启用，从而使闪存不可用、设备无法启动。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2026-80712 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-80712 补丁与修复 (3)
同批安全公告 · Linux · 2026-08-28 · 共 135 条
| CVE-2026-80634 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80694 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80681 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80674 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80673 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80668 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80630 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80617 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80612 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80714 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80609 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80600 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80693 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80684 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80671 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80603 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80670 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2026-80721 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-80722 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2026-80724 | 8.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 135 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-80712
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