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CVE-2026-98855— of/overlay: put property on deadprops only after changeset add succeeds

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.

在 Linux 内核中，以下漏洞已得到修复： of/overlay：仅在变更集（changeset）添加成功后，才将属性放入 deadprops 链表 add_changeset_property() 函数在将新属性传递给 of_changeset_add_property() 之前，会先将该属性链接到目标节点（此时尚未激活）的 deadprops 链表中。如果 of_changeset_add_property() 调用失败，错误处理路径会释放该属性，但已释放的指针仍保留在 deadprops 链表中。当被中止的

AI Predicted 7.8 Difficulty: Hard

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux f96278810150fc39085d1872e5b39ea06366d03e< d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a affected
f96278810150fc39085d1872e5b39ea06366d03e< 7dc6a769153c0457077a0da4888a00f61e66de15 affected
f96278810150fc39085d1872e5b39ea06366d03e< 5857035a3b53a4e7b5a0d5a740189901ece0b079 affected
f96278810150fc39085d1872e5b39ea06366d03e< 814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c affected
b52ca352489be8beb7de3a8181509a0deaf72e21 affected
4.19.49< 4.20 affected
5.0 affected
< 5.0 unaffected
… +4 more rows
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I. Basic Information for CVE-2026-98855

Vulnerability Information
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Vulnerability Title
of/overlay: put property on deadprops only after changeset add succeeds
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: of/overlay: put property on deadprops only after changeset add succeeds add_changeset_property() links a new property of a not-yet-live target node into the node's deadprops list before handing it to of_changeset_add_property(). If that fails, the error path frees the property but leaves the freed pointer linked in deadprops, and of_node_release() frees it a second time when the aborted overlay's node is released. Record the changeset entry first and link the property into deadprops only on success. of_changeset_add_property() never looks at the node's property lists, so the order of the two steps is otherwise immaterial, and the error path frees a property that nothing references.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux f96278810150fc39085d1872e5b39ea06366d03e ~ d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a -
Linux Linux 5.0 -

II. Public POCs for CVE-2026-98855

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III. Intelligence Information for CVE-2026-98855

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Patches & Fixes for CVE-2026-98855 (1)

Same Patch Batch · Linux · 2026-10-18 · 436 CVEs total

CVE-2026-98582 nfc: st21nfca: validate received frame size
CVE-2026-98568 vxlan: use one headroom snapshot for neighbour replies
CVE-2026-98570 net: ipv6: keep room for the mac header in dst_dev_overhead()
CVE-2026-98571 net: stmmac: clear stale buf->page after recycling on skb build failure
CVE-2026-98572 bpf: Fix immediate JMP JEQ/JNE on MIPS32
CVE-2026-98573 net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6()
CVE-2026-98574 net: bcmgenet: stop Tx NAPI before disabling the queues
CVE-2026-98575 nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()
CVE-2026-98576 nfc: llcp: fix slab-out-of-bounds reads when logging service names
CVE-2026-98577 nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap()
CVE-2026-98578 nfc: st21nfca: validate ISO15693 inventory length
CVE-2026-98579 nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure
CVE-2026-98580 nfc: llcp: Fix race condition in accept_queue lifecycle
CVE-2026-98581 nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm()
CVE-2026-98593 s390/debug: Fix NULL pointer dereference in debug_info_copy()
CVE-2026-98590 bpf: Fix bpf_sock context code generation
CVE-2026-98591 bpf: Fix bounds check for skb-backed dynptrs
CVE-2026-98592 net: spacemit: clear TX descriptor on fragment mapping failure
CVE-2026-98589 bpf: Reject pkt arguments in mutating subprogs
CVE-2026-98594 tg3: clean up PHYLIB resources on probe failure

Showing top 20 of 436 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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