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CVE-2026-97535— scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size

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：将虚拟端口（VP）索引与 VP_CTRL IOCB 位图大小进行绑定限制 VP 控制 IOCB 通过在 中设置一个位来选择目标虚拟端口。 是一个固定大小为 16 字节（128 位）的数组，存在于 和 结构体中。函数 计算 ，并将结果写入 ，但未检查 是否仍在该数组边界内。 的值取自固件，仅经过对齐到 边界的处理，因此其合法值可能为 191 或 255。而函数 仅拒绝 的情况。因此，当 大于 128 时，会导致 ，从而在 末尾最多写入 16 字

AI Predicted 7.8 Difficulty: Moderate EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 2853192e154b813fe34a6cbee5e34dfef50d29d0< c80a0362a0fe548c15a0324b1f61c04b62bb2174 affected
2853192e154b813fe34a6cbee5e34dfef50d29d0< 48a44e19746eaa70320a3c2571dcb345192fca72 affected
2853192e154b813fe34a6cbee5e34dfef50d29d0< 13354ad251ab009102597a791bc7c4d2265229e1 affected
2853192e154b813fe34a6cbee5e34dfef50d29d0< 878613ecb5a36db26859c4fd83daf9283a334fa2 affected
4.16 affected
< 4.16 unaffected
6.12.112≤ 6.12.* unaffected
6.18.53≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-97535

Vulnerability Information
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Vulnerability Title
scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size The VP control IOCB selects its target virtual port by setting one bit in vp_idx_map, a fixed 16-byte (128-bit) array in both vp_ctrl_entry_24xx and vp_ctrl_entry_24xx_ext. qla25xx_ctrlvp_iocb() computes map = (vp_index - 1) / 8 and writes vce->vp_idx_map[map] without checking that map stays within the array. max_npiv_vports is taken from firmware and only sanitized to a MIN_MULTI_ID_FABRIC-aligned boundary, so it can legitimately be 191 or 255, and qla24xx_control_vp() only rejects vp_index >= max_npiv_vports. A vp_index above 128 therefore yields map >= 16 and an out-of-bounds write of up to 16 bytes past vp_idx_map, corrupting the trailing IOCB fields (or the adjacent request-ring slot on the 64-byte layout). Reject a vp_index that cannot be represented in the IOCB bitmap in qla24xx_control_vp(), and add a defensive ARRAY_SIZE() guard in qla25xx_ctrlvp_iocb() before the write. Adapters that report the usual 63 or 127 NPIV vports are unaffected.
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 2853192e154b813fe34a6cbee5e34dfef50d29d0 ~ c80a0362a0fe548c15a0324b1f61c04b62bb2174 -
Linux Linux 4.16 -

II. Public POCs for CVE-2026-97535

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III. Intelligence Information for CVE-2026-97535

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Patches & Fixes for CVE-2026-97535 (4)

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-2026-97527 8.8 HIGH scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
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-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-97570 8.1 HIGH bnxt_en: Bound SW TPA IDs to prevent crashes
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-2026-98116 7.8 HIGH ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF
CVE-2026-97548 7.8 HIGH xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions
CVE-2026-97903 7.8 HIGH exit: hold a reference to thread_pid across proc_flush_pid
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-2026-97577 7.8 HIGH media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-97535

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