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CVE-2026-99206— scsi: target: iscsi: Fix race in discovery auth updates

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: target: iscsi: 修复发现认证更新中的竞态条件多个独立的 configfs 打开操作可能并发更新发现（discovery）的 AuthMethod 参数。这两个调用方均可能在 iscsi_update_param_value() 中释放同一个值，从而导致双重释放（double-free）漏洞。通过引入发现 TPG 访问锁来保护查找和替换操作，该锁机制与其他 TPG 的 configfs 参数更新所采用的方式一致。

AI Predicted 7.8 Difficulty: Moderate Updated Oct 28, 2026

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 8

Vendor	Product	Version Range	Status
Linux	Linux	`e48354ce078c079996f89d715dfa44814b4eba01< 9b07828b133b326cb4fb59f144ca37f8db535999`	affected
		`e48354ce078c079996f89d715dfa44814b4eba01< 6caa2b3edb7da4f50a38e16561b75fcae21d4099`	affected
		`e48354ce078c079996f89d715dfa44814b4eba01< e15b81f602edbdee39c335546f25486a1747f3f0`	affected
		`3.1`	affected
		`< 3.1`	unaffected
		`6.18.59≤ 6.18.*`	unaffected
		`7.2.13≤ 7.2.*`	unaffected
		`7.3≤ *`	unaffected

Updated Oct 28, 2026

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Vulnerability Information

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Vulnerability Title

scsi: target: iscsi: Fix race in discovery auth updates

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix race in discovery auth updates Separate configfs opens can concurrently update the discovery AuthMethod parameter. Both callers may free the same value in iscsi_update_param_value(), causing a double-free. Protect the lookup and replacement with the discovery TPG access lock, as used by the other TPG configfs parameter updates.

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	e48354ce078c079996f89d715dfa44814b4eba01 ~ 9b07828b133b326cb4fb59f144ca37f8db535999	-
Linux	Linux	3.1	-

II. Public POCs for CVE-2026-99206

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-99206

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Patches & Fixes for CVE-2026-99206 (3)

https://www.cve.org/CVERecord?id=CVE-2026-99206

Same Patch Batch · Linux · 2026-10-28 · 117 CVEs total

CVE-2026-99143		tracing: Keep the predicate limit separate from program capacity
CVE-2026-99129		selinux: fix BPF token permission checks
CVE-2026-99130		io_uring/cancel: don't spin on local work the task can't run
CVE-2026-99131		xfs: fix capability check in xfs
CVE-2026-99133		net/iucv: fix the recvmsg window update
CVE-2026-99132		xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf
CVE-2026-99134		mac802154: fix data race and NULL deref on local->assoc_dev
CVE-2026-99135		dm-integrity: fix infinite loop on discard with large tag size
CVE-2026-99137		cifs: don't update i_size in cifs_do_truncate without a cached handle
CVE-2026-99136		dm-crypt: fix a tiny race condition in crypt_dec_pending
CVE-2026-99138		tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO)
CVE-2026-99140		tracing: Fix hist trigger timestamps for buffered events
CVE-2026-99139		tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)
CVE-2026-99141		tracing: Fix crash in print_graph_function_event()
CVE-2026-99142		tracing: Check operator stack capacity before pushing
CVE-2026-99154		scsi: libiscsi: Reject a negative task index from parse_pdu_itt
CVE-2026-99151		drm/amd/display: Fix NULL sink dereference in USB4 bandwidth functions
CVE-2026-99153		scsi: libiscsi: Validate the ITT reflected in a Reject PDU
CVE-2026-99152		scsi: libiscsi: Validate the task named by a management response
CVE-2026-99150		drm/amdgpu: don't drop the runtime PM reference twice in amdgpu_gpr

Showing top 20 of 117 CVEs. View all on vendor page → →

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