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CVE-2026-98579— nfc: llcp: fix sdreq TLV list leak on parse/alloc/send 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.

在 Linux 内核中，以下漏洞已得到修复： nfc: llcp: 修复在解析、分配或发送失败时 sdreq TLV 列表的内存泄漏问题 nfc_genl_llc_sdreq() 在遍历嵌套的 netlink 属性时会构建一个 TLV 节点列表，但在以下三种错误路径中（嵌套属性解析失败、TLV 分配因 ENOMEM 失败、nfc_llcp_send_snl_sdreq() 调用失败），均未释放已入队的节点，从而导致内存泄漏。 修复方案是将这些错误路径统一导向一个新的 free_list 标签，其处理方式与同一文件中

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1069 · Permission Groups Discovery

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d9b8d8e19b073096d3609bbd60f82148d128b555< 5b1eca82085134bd92cd3810b0ef003c91e3f668 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< 755bfc409748d8f3df64eb0eb26926270de3dd77 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< e43ec0191c1630f41e7043ac729ea6f1b8044a7f affected
d9b8d8e19b073096d3609bbd60f82148d128b555< 08d2c069239ab425fdd333784a6a3b3e034e4aa0 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< cbde7f5d326172d6dbb55cca0df42fa7e1ed8115 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< 0b01a946b0f234f5badd25968610b585a4895f08 affected
d9b8d8e19b073096d3609bbd60f82148d128b555< 66f4300206b82b0b143ef0d9be90cd8d29f23a47 affected
… +10 more rows
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I. Basic Information for CVE-2026-98579

Vulnerability Information
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Vulnerability Title
nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure nfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested netlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc ENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was already queued. Route them through a new free_list label, mirroring the SDRES path in the same file which already does this. Harmless on the success path too -- send_snl_sdreq() drains the list as it moves nodes, so it's already empty by the time free_list runs.
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 d9b8d8e19b073096d3609bbd60f82148d128b555 ~ 5b1eca82085134bd92cd3810b0ef003c91e3f668 -
Linux Linux 3.10 -

II. Public POCs for CVE-2026-98579

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III. Intelligence Information for CVE-2026-98579

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Patches & Fixes for CVE-2026-98579 (8)

Same Patch Batch · Linux · 2026-10-18 · 435 CVEs total

CVE-2026-98720 KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified
CVE-2026-98733 Bluetooth: hci_core: Serialize fragmented ISO packet queueing
CVE-2026-98732 Bluetooth: btintel: fix buffer over-read in btintel_hw_error()
CVE-2026-98731 Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame()
CVE-2026-98730 Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()
CVE-2026-98729 x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h
CVE-2026-98728 tpm: fix off-by-four bounds check in tpm2_get_random()
CVE-2026-98727 nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known
CVE-2026-98726 nvme-multipath: fix underflow in ANA log bounds checks
CVE-2026-98725 nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge()
CVE-2026-98724 nvmet: pci-epf: reject too-short SGL segments
CVE-2026-98723 nvmet: copy the hostid into the ctrl before creating PR pc_refs
CVE-2026-98722 mtd: block2mtd: Fix divide error when erase_size is zero
CVE-2026-98721 mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ
CVE-2026-98709 wifi: mac80211: count only matching reservations in reserved switch
CVE-2026-98712 KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq
CVE-2026-98711 wifi: cw1200: fix TX padding OOB read leaking heap data to device
CVE-2026-98710 wifi: iwlegacy: 3945: free EEPROM data on remove
CVE-2026-98713 KVM: arm64: Apply the fine-grained UNDEFs without FEAT_FGT
CVE-2026-98707 wifi: mac80211: shut down RX BA session timer on teardown

Showing top 20 of 435 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98579

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