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CVE-2026-46178— RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq()

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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于RDMA mlx4中mlx4_ib_create_srq()错误路径资源泄漏，可能导致mlx4_srq_alloc()未释放。

CVSS 7.8 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 225c7b1feef1b41170f7037a5b10a65cd8a42c54< 53fd4c03558672ccb167754fbacbf045c7ab335c affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 0be6ae614ca7fa53e7389e3c7462ed20abbd4192 affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 5b3b220d54e6a3d77380cb7caa1ef79cb8f4fc94 affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< c5dc30da990045105c9762248d23076223e7878a affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 0dbd619716fb07b7de1acd64fec673ee6e1adde7 affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< e01b8c9286c470b71a38acd320106f2c4f2826a1 affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 388617f44d81604a760742a0b5de292d411e63e3 affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< c54c7e4cb679c0aaa1cb489b9c3f2cd98e63a44c affected
… +10 more rows
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I. Basic Information for CVE-2026-46178

Vulnerability Information
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Vulnerability Title
RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix resource leak on error in mlx4_ib_create_srq() Sashiko points out that mlx4_srq_alloc() was not undone during error unwind, add the missing call to mlx4_srq_free().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于RDMA mlx4中mlx4_ib_create_srq()错误路径资源泄漏，可能导致mlx4_srq_alloc()未释放。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 225c7b1feef1b41170f7037a5b10a65cd8a42c54 ~ 53fd4c03558672ccb167754fbacbf045c7ab335c -
Linux Linux 2.6.22 -

II. Public POCs for CVE-2026-46178

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III. Intelligence Information for CVE-2026-46178

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Patches & Fixes for CVE-2026-46178 (8)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46152 8.8 HIGH wifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46215 7.8 HIGH drm: Set old handle to NULL before prime swap in change_handle
CVE-2026-46173 7.8 HIGH exit: prevent preemption of oopsing TASK_DEAD task
CVE-2026-46157 7.8 HIGH ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46178

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