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CVE-2026-89842— scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started

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： scsi: qla2xxx：当固件未启动时，跳过 NVMe 逻辑插槽（LS）拒绝 IOCB 当固件未启动（ ）时， 会跳转到 标签，但 代码路径会无条件地调用 ，该函数最终会调用 ，并执行一次对请求队列入队指针寄存器的无条件 MMIO 写操作（即敲响固件门铃）。 这会在复位或 EEH 错误处理窗口期间敲响固件门铃，并排队一个处于停止或复位中的固件无法消费的 IOCB。 修复方案： 仅当 已置位时，才发出 LS 拒绝 IOCB 并敲响门铃；否则仅进行清理并返回。 对于分配

AI Predicted 5.3 Difficulty: Hard EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1610 · Deploy Container

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 875386b98857822b77ac7f95bdf367b70af5b78c< 2935b730211c5c1433aa6101fa3b55df2b63869a affected
875386b98857822b77ac7f95bdf367b70af5b78c< 7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120 affected
875386b98857822b77ac7f95bdf367b70af5b78c< ac4b019ac07844d3f67ea5e48b1d982b2170d1a7 affected
875386b98857822b77ac7f95bdf367b70af5b78c< e9bfb56e2c1bda49d3c5442d824569d71eec07e2 affected
875386b98857822b77ac7f95bdf367b70af5b78c< f7e46ebffc5781aab3f1f5a5d4350addbb5833f4 affected
6.6 affected
< 6.6 unaffected
6.6.157≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-89842

Vulnerability Information
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Vulnerability Title
scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started qla_nvme_xmt_ls_rsp() bails out to the out: label when firmware is not started (!ha->flags.fw_started), but the out: path unconditionally calls qla_nvme_ls_reject_iocb(), which ends in qla2x00_start_iocbs() and an unconditional doorbell write to the request queue in-pointer register. This rings the firmware doorbell and queues an IOCB that stopped or resetting firmware cannot consume, and touches MMIO during the reset/EEH window where fw_started is also clear. Only emit the LS reject IOCB (and ring the doorbell) when fw_started is set; otherwise just clean up and return. The post-allocation failure cases (SRB alloc / qla2x00_start_sp() failure) run with firmware started and still send the reject. Apply the same guard to the reject emission in qla2xxx_process_purls_pkt().
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 875386b98857822b77ac7f95bdf367b70af5b78c ~ 2935b730211c5c1433aa6101fa3b55df2b63869a -
Linux Linux 6.6 -

II. Public POCs for CVE-2026-89842

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III. Intelligence Information for CVE-2026-89842

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Other References for CVE-2026-89842 (5)

Same Patch Batch · Linux · 2026-09-16 · 276 CVEs total

CVE-2026-90048 9.8 CRITICAL fs/ntfs3: fix slab-out-of-bounds write in ni_create_attr_list()
CVE-2026-90012 9.8 CRITICAL spi: Fix DMA mapping ownership on partial map failure
CVE-2026-89970 9.8 CRITICAL nvmet-auth: Synchronize timeout work during SQ teardown
CVE-2026-89857 9.8 CRITICAL scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject
CVE-2026-89969 9.8 CRITICAL nvmet-tcp: fix out-of-bounds write when receiving an over-long PDU
CVE-2026-89847 9.8 CRITICAL scsi: qla2xxx: Avoid double completion in async IOCB timeout
CVE-2026-89972 9.8 CRITICAL nvme: add missing SRCU grace period in error path
CVE-2026-89990 9.8 CRITICAL ceph: lock mutex in ceph_mds_check_access()
CVE-2026-90036 9.8 CRITICAL NFSD: Prevent client use-after-free during blocked-lock reaping
CVE-2026-90038 9.8 CRITICAL NFSD: Prevent client use-after-free during export state revocation
CVE-2026-90037 9.8 CRITICAL NFSD: Prevent client use-after-free during close_lru reaping
CVE-2026-89788 9.8 CRITICAL ksmbd: fix tree connection use-after-free in smb2_tree_connect()
CVE-2026-89783 9.8 CRITICAL xfrm6: fix out-of-bounds write in xfrm6_input_addr() when secpath is full
CVE-2026-90042 9.8 CRITICAL ceph: properly decrypt filenames in vmalloc() buffers
CVE-2026-89778 9.8 CRITICAL isofs: fix out-of-bounds page array access on empty zisofs block
CVE-2026-89915 9.3 CRITICAL KVM: arm64: Remove VM-wide VNCR mapping counter
CVE-2026-90049 9.3 CRITICAL net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()
CVE-2026-89775 9.3 CRITICAL KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation
CVE-2026-89916 9.3 CRITICAL KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry
CVE-2026-89930 9.3 CRITICAL KVM: nVMX: Service local TLB flushes on failed nested VM-Enter

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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