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CVE-2026-23260— regmap: maple: free entry on mas_store_gfp() failure

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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mas_store_gfp失败时未释放entry，可能导致内存泄漏。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux f033c26de5a5734625d2dd1dc196745fae186f1b< d61171cf097156030142643942c217759a9cc806 affected
f033c26de5a5734625d2dd1dc196745fae186f1b< 811b45e2d795d955bb7fd9c816b40036f4fde350 affected
f033c26de5a5734625d2dd1dc196745fae186f1b< f08f2d2907675926ac5657b25f86d921f269602a affected
f033c26de5a5734625d2dd1dc196745fae186f1b< f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8 affected
6.4 affected
< 6.4 unaffected
6.6.124≤ 6.6.* unaffected
6.12.70≤ 6.12.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-23260

Vulnerability Information
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Vulnerability Title
regmap: maple: free entry on mas_store_gfp() failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: regmap: maple: free entry on mas_store_gfp() failure regcache_maple_write() allocates a new block ('entry') to merge adjacent ranges and then stores it with mas_store_gfp(). When mas_store_gfp() fails, the new 'entry' remains allocated and is never freed, leaking memory. Free 'entry' on the failure path; on success continue freeing the replaced neighbor blocks ('lower', 'upper').
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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mas_store_gfp失败时未释放entry，可能导致内存泄漏。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux f033c26de5a5734625d2dd1dc196745fae186f1b ~ d61171cf097156030142643942c217759a9cc806 -
Linux Linux 6.4 -

II. Public POCs for CVE-2026-23260

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III. Intelligence Information for CVE-2026-23260

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Patches & Fixes for CVE-2026-23260 (4)

Same Patch Batch · Linux · 2026-03-18 · 35 CVEs total

CVE-2026-23246 8.8 HIGH wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
CVE-2026-23270 7.8 HIGH net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks
CVE-2026-23268 7.8 HIGH apparmor: fix unprivileged local user can do privileged policy management
CVE-2026-23243 7.8 HIGH RDMA/umad: Reject negative data_len in ib_umad_write
CVE-2026-23245 7.8 HIGH net/sched: act_gate: snapshot parameters with RCU on replace
CVE-2026-23248 7.8 HIGH perf/core: Fix refcount bug and potential UAF in perf_mmap
CVE-2026-23253 7.8 HIGH media: dvb-core: fix wrong reinitialization of ringbuffer on reopen
CVE-2026-23242 7.5 HIGH RDMA/siw: Fix potential NULL pointer dereference in header processing
CVE-2025-71268 7.5 HIGH btrfs: fix reservation leak in some error paths when inserting inline extent
CVE-2025-71269 7.5 HIGH btrfs: do not free data reservation in fallback from inline due to -ENOSPC
CVE-2026-23269 7.1 HIGH apparmor: validate DFA start states are in bounds in unpack_pdb
CVE-2026-23250 xfs: check return value of xchk_scrub_create_subord
CVE-2025-71265 fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata
CVE-2025-71266 fs: ntfs3: check return value of indx_find to avoid infinite loop
CVE-2025-71267 fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST
CVE-2026-23267 f2fs: fix IS_CHECKPOINTED flag inconsistency issue caused by concurrent atomic commit and
CVE-2026-23266 fbdev: rivafb: fix divide error in nv3_arb()
CVE-2026-23265 f2fs: fix to do sanity check on node footer in {read,write}_end_io
CVE-2026-23244 nvme: fix memory allocation in nvme_pr_read_keys()
CVE-2026-23264 Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"

Showing top 20 of 35 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23260

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