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CVE-2026-97527— scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock

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，已修复以下漏洞： scsi: qla2xxx：通过每个 FC 端口锁对 NVMe 未请求上下文列表进行序列化 列表在多个上下文中被修改，但缺乏共同的锁保护。该列表的条目添加操作发生在 中（来自响应队列的中断服务程序 ISR，在 的 下执行）；而条目删除操作则发生在 （DPC/purex 工作线程）、 （NVMe-FC 传输回调）以及 （SRB 完成处理）中。由于多队列适配器通过不同的 添加条目，因此无法使用 的 对该每个 FC 端口的列表进行序列化，这可能导致并发添加与删除（或两个并发的删除

CVSS 8.8 · High EPSS 0.32% · P22

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 875386b98857822b77ac7f95bdf367b70af5b78c< b211d138cad86f749826d6132db6388eded992d8 affected
875386b98857822b77ac7f95bdf367b70af5b78c< 4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0 affected
875386b98857822b77ac7f95bdf367b70af5b78c< 76da0c43c63eb0496649e372ac64466364d0fe7d affected
6.6 affected
< 6.6 unaffected
6.18.53≤ 6.18.* unaffected
7.2.7≤ 7.2.* unaffected
7.3-rc1≤ * unaffected
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I. Basic Information for CVE-2026-97527

Vulnerability Information
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Vulnerability Title
scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock The fcport->unsol_ctx_head list is modified from several contexts without a common lock. Entries are added in qla2xxx_process_purls_iocb() from the response queue ISR (under the qpair qp_lock), while they are removed from qla2xxx_process_purls_pkt() (DPC/purex worker), qla_nvme_xmt_ls_rsp() (NVMe-FC transport callback) and qla_nvme_release_lsrsp_cmd_kref() (SRB completion). The qpair qp_lock cannot serialize this per-fcport list since multiqueue adapters add entries through different qpairs, so a concurrent add and delete (or two concurrent deletes) can corrupt the list pointers. Introduce a dedicated per-fcport spinlock, unsol_ctx_lock, initialized in qla2x00_alloc_fcport(), and take it around every list_add_tail()/list_del() on unsol_ctx_head. The add nests under the existing qp_lock; no delete path takes qp_lock, so the lock order is consistent and deadlock free.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 875386b98857822b77ac7f95bdf367b70af5b78c ~ b211d138cad86f749826d6132db6388eded992d8 -
Linux Linux 6.6 -

II. Public POCs for CVE-2026-97527

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III. Intelligence Information for CVE-2026-97527

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Patches & Fixes for CVE-2026-97527 (3)

Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total

CVE-2026-100075 9.8 CRITICAL RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters
CVE-2026-97957 8.8 HIGH net: hinic: fix mailbox segment buffer overflow
CVE-2026-97528 8.8 HIGH scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
CVE-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
CVE-2026-98115 8.8 HIGH ksmbd: safely drain sessions during logoff
CVE-2026-97525 8.2 HIGH x86/mm/pat: Allocate split page tables as kernel page tables
CVE-2026-97573 8.1 HIGH bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
CVE-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-97578 7.8 HIGH media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer
CVE-2026-97548 7.8 HIGH xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions
CVE-2026-98052 7.8 HIGH net: bcmasp: clear txcb->last before writing each descriptor
CVE-2026-97611 7.8 HIGH net: openvswitch: fix use-after-free of the flow table mask array
CVE-2026-97612 7.8 HIGH net: mpls: clear inner_protocol when the last label is popped
CVE-2026-98073 7.8 HIGH net: Remove conflicting altnames for dying netns in __dev_change_net_namespace().
CVE-2026-97602 7.8 HIGH inet: frags: invalidate queues before flushing them
CVE-2026-98112 7.8 HIGH ksmbd: fix listener task lifetime on netdev events
CVE-2026-97579 7.8 HIGH media: mediatek: vcodec: bound AV1 tile-start copy to the array capacity

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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