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

CVSS 7.8 · High EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux225c7b1feef1b41170f7037a5b10a65cd8a42c54< 53fd4c03558672ccb167754fbacbf045c7ab335caffected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 0be6ae614ca7fa53e7389e3c7462ed20abbd4192affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 5b3b220d54e6a3d77380cb7caa1ef79cb8f4fc94affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< c5dc30da990045105c9762248d23076223e7878aaffected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 0dbd619716fb07b7de1acd64fec673ee6e1adde7affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< e01b8c9286c470b71a38acd320106f2c4f2826a1affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< 388617f44d81604a760742a0b5de292d411e63e3affected
225c7b1feef1b41170f7037a5b10a65cd8a42c54< c54c7e4cb679c0aaa1cb489b9c3f2cd98e63a44caffected
… +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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 225c7b1feef1b41170f7037a5b10a65cd8a42c54 ~ 53fd4c03558672ccb167754fbacbf045c7ab335c -
LinuxLinux 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 · 138 CVEs total

CVE-2026-461359.8 CRITICALnvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-461379.8 CRITICALmptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-461959.8 CRITICALsmb: client: validate dacloffset before building DACL pointers
CVE-2026-461159.8 CRITICALblock: add pgmap check to biovec_phys_mergeable
CVE-2026-461859.1 CRITICALsmb/client: fix out-of-bounds read in symlink_data()
CVE-2026-461199.1 CRITICALlibceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-461559.1 CRITICALsmb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-461668.8 HIGHwifi: mac80211: use safe list iteration in radar detect work
CVE-2026-461988.8 HIGHbatman-adv: fix integer overflow on buff_pos
CVE-2026-461258.8 HIGHwifi: mac80211: remove station if connection prep fails
CVE-2026-461748.8 HIGHx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-462388.8 HIGHbatman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-461528.8 HIGHwifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-461138.8 HIGHKVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-462128.8 HIGHbatman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-461388.1 HIGHBluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-462328.1 HIGHHID: playstation: Clamp num_touch_reports
CVE-2026-461057.8 HIGHscsi: mpt3sas: Limit NVMe request size to 2 MiB
CVE-2026-462107.8 HIGHmedia: iris: fix use-after-free of fmt_src during MBPF check
CVE-2026-462277.8 HIGHsctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL

Showing top 20 of 138 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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