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CVE-2026-89858— scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

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: 在 qla2x00_update_fru_versions() 中对映像数量进行边界限制 函数将用户提供的 BSG 请求复制到固定的 256 字节栈缓冲区（ ），随后根据 遍历嵌入在该缓冲区内的 数组，并在每次迭代中移动映像指针。 直接取自用户输入且没有上限，而实际上只有 个条目可以容纳。如果 较大，映像指针将越过栈缓冲区的末尾，读取相邻的内核栈内存，并通过 将其发送给设备。 修复方案： 拒绝那些声明的 无法适配缓冲区的请求。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 697a4bc69159c3396035b0506ffa55c4b2d0b1f4< af733bbfcf667af1871a2735fba2835b0da71efb affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< a9706d5e754e77515a92bb532bd0d73644979a1f affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< 7e3154c97ec15460f715dbbe4097c255cce110b1 affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< 047f1f7ee6f85bde28abfdda9fa550191ddc0532 affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< f93e8039e6fd54a3c027c6184daf00b745b576a0 affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< 7b22b4cb8822805cef7ba618da6f76e1474d68bd affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514 affected
697a4bc69159c3396035b0506ffa55c4b2d0b1f4< de62cf265dbe309f34f144a6cdbca9240317727e affected
… +10 more rows
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I. Basic Information for CVE-2026-89858

Vulnerability Information
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Vulnerability Title
scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.
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 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 ~ af733bbfcf667af1871a2735fba2835b0da71efb -
Linux Linux 3.2 -

II. Public POCs for CVE-2026-89858

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III. Intelligence Information for CVE-2026-89858

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Other References for CVE-2026-89858 (8)

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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