Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-89857— scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject

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，已解决以下漏洞： scsi: qla2xxx: 在发送 NVMe LS reject 时持有 qpair 锁 通过 （该函数假定已持有 ）分配并推进请求环，并通过 （该函数推进环并触发请求门铃），但该函数本身未加锁。它的两个调用者是在未持有生产者锁的情况下调用它的： ，即 NVMe-FC 的 传输回调，在其错误路径上调用； ，运行于纯交换工作/DPC 上下文中。 这两者都使用 ，其 指向 ，因此它们可能与基础环上的常规 I/O 提交并发执行，从而破坏环的生产者状态，导致命令重复或丢失。第三个

CVSS 9.8 · Critical EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 875386b98857822b77ac7f95bdf367b70af5b78c< 7eb618877503edbf17aa65e357a81bda1fc8f163 affected
875386b98857822b77ac7f95bdf367b70af5b78c< b3a362466db6b8ec47cc537ac641ac197fa69b5d affected
875386b98857822b77ac7f95bdf367b70af5b78c< 11834e5773e20fd3742d7eb900876e66b9e7d029 affected
875386b98857822b77ac7f95bdf367b70af5b78c< b02ff132017b28222187ebcf95ce7f4cb576cd36 affected
875386b98857822b77ac7f95bdf367b70af5b78c< f743488e4a203049f27ec5d8cd0caccc483af01e affected
6.6 affected
< 6.6 unaffected
6.6.157≤ 6.6.* unaffected
… +4 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-89857

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject qla_nvme_ls_reject_iocb() allocates from and advances the request ring through __qla2x00_alloc_iocbs() (which assumes the hardware_lock is held) and qla2x00_start_iocbs() (which advances the ring and rings the request-in doorbell), but takes no lock itself. Two of its callers invoke it without the producer lock held: - qla_nvme_xmt_ls_rsp(), the NVMe-FC .xmt_ls_rsp transport callback, on its error path, and - qla2xxx_process_purls_pkt(), run from the purex work/DPC context. Both use ha->base_qpair, whose qp_lock_ptr is hardware_lock, so they can run concurrently with normal I/O submission on the base ring and corrupt the ring producer state, leading to duplicated or dropped commands. The third caller, qla2xxx_process_purls_iocb(), runs inside qla24xx_process_response_queue() with the qpair lock already held and is safe; that is also why the lock cannot be taken inside the helper itself (it would recursively re-acquire hardware_lock on the response path). Take qp_lock_ptr around the two unlocked callers and document the helper as caller-locked. Both run in process context, so spin_lock_irqsave() is used and nothing in the locked region sleeps.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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 ~ 7eb618877503edbf17aa65e357a81bda1fc8f163 -
Linux Linux 6.6 -

II. Public POCs for CVE-2026-89857

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-89857

请登录查看更多情报信息。

Other References for CVE-2026-89857 (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-2026-89969 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-2026-89914 9.3 CRITICAL KVM: arm64: Sign-extend VA for range-based TLBI invalidation
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
CVE-2026-89918 9.3 CRITICAL KVM: arm64: Correctly handle end of VA space TLBI invalidation

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-89857

No comments yet

Leave a comment