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CVE-2026-23007— block: zero non-PI portion of auto integrity buffer

EPSS 0.02% · P5
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I. Basic Information for CVE-2026-23007

Vulnerability Information
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Vulnerability Title
block: zero non-PI portion of auto integrity buffer
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: block: zero non-PI portion of auto integrity buffer The auto-generated integrity buffer for writes needs to be fully initialized before being passed to the underlying block device, otherwise the uninitialized memory can be read back by userspace or anyone with physical access to the storage device. If protection information is generated, that portion of the integrity buffer is already initialized. The integrity data is also zeroed if PI generation is disabled via sysfs or the PI tuple size is 0. However, this misses the case where PI is generated and the PI tuple size is nonzero, but the metadata size is larger than the PI tuple. In this case, the remainder ("opaque") of the metadata is left uninitialized. Generalize the BLK_INTEGRITY_CSUM_NONE check to cover any case when the metadata is larger than just the PI tuple.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未初始化完整性缓冲区，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux c546d6f438338017480d105ab597292da67f6f6a ~ d6072557b90e0c557df319a56f4a9dc482706d2c -
LinuxLinux 6.11 -

II. Public POCs for CVE-2026-23007

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III. Intelligence Information for CVE-2026-23007

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Same Patch Batch · Linux · 2026-01-25 · 20 CVEs total

CVE-2026-230107.8 HIGHipv6: Fix use-after-free in inet6_addr_del().
CVE-2026-229997.8 HIGHnet/sched: sch_qfq: do not free existing class in qfq_change_class()
CVE-2026-230047.8 HIGHdst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
CVE-2026-230017.8 HIGHmacvlan: fix possible UAF in macvlan_forward_source()
CVE-2026-229977.5 HIGHnet: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the
CVE-2026-229987.5 HIGHnvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
CVE-2026-230037.5 HIGHip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()
CVE-2026-230137.0 HIGHnet: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
CVE-2025-71162dmaengine: tegra-adma: Fix use-after-free
CVE-2025-71163dmaengine: idxd: fix device leaks on compat bind and unbind
CVE-2026-22996net/mlx5e: Don't store mlx5e_priv in mlx5e_dev devlink priv
CVE-2026-23000net/mlx5e: Fix crash on profile change rollback failure
CVE-2026-23002lib/buildid: use __kernel_read() for sleepable context
CVE-2026-23005x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1
CVE-2026-23006ASoC: tlv320adcx140: fix null pointer
CVE-2026-23008drm/vmwgfx: Fix KMS with 3D on HW version 10
CVE-2026-23009xhci: sideband: don't dereference freed ring when removing sideband endpoint
CVE-2026-23011ipv4: ip_gre: make ipgre_header() robust
CVE-2026-23012mm/damon/core: remove call_control in inactive contexts

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23007

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