CVE-2026-53123— md: wake raid456 reshape waiters before suspend
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 714d20150ed85811193ae07a494d91f9927c590f< 8b6a72420821e6da2cab6a69d5233500d2698b93 | affected |
714d20150ed85811193ae07a494d91f9927c590f< ff6b93410192b812d73cc54062529715b2dc849f | affected | ||
714d20150ed85811193ae07a494d91f9927c590f< 8ae3e14d7f3df58f7f49c02d74344e3dcd5f84f0 | affected | ||
714d20150ed85811193ae07a494d91f9927c590f< cf86bb53b9c92354904a328e947a05ffbfdd1840 | affected | ||
6.7 | affected | ||
< 6.7 | unaffected | ||
6.12.91≤ 6.12.* | unaffected | ||
6.18.33≤ 6.18.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2026-53123
Vulnerability Information
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Vulnerability Title
md: wake raid456 reshape waiters before suspend
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md: wake raid456 reshape waiters before suspend During raid456 reshape, direct IO across the reshape position can sleep in raid5_make_request() waiting for reshape progress while still holding an active_io reference. If userspace then freezes reshape and writes md/suspend_lo or md/suspend_hi, mddev_suspend() kills active_io and waits for all in-flight IO to drain. This can deadlock: the IO needs reshape progress to continue, but the reshape thread is already frozen, so the active_io reference is never dropped and suspend never completes. raid5_prepare_suspend() already wakes wait_for_reshape for dm-raid. Do the same for normal md suspend when reshape is already interrupted, so waiting raid456 IO can abort, drop its reference, and let suspend finish. The mdadm test tests/25raid456-reshape-deadlock reproduces the hang.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于raid456重塑过程中，direct IO操作在持有active_io引用时休眠等待reshape进度，导致死锁风险。
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
II. Public POCs for CVE-2026-53123
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-53123 (4)
Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total
| CVE-2026-53049 | 9.8 CRITICAL | gfs2: add some missing log locking |
| CVE-2026-52993 | 9.8 CRITICAL | tipc: fix double-free in tipc_buf_append() |
| CVE-2026-52989 | 9.8 CRITICAL | nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers |
| CVE-2026-52986 | 9.8 CRITICAL | netfilter: nf_conntrack_sip: don't use simple_strtoul |
| CVE-2026-52982 | 9.8 CRITICAL | net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit() |
| CVE-2026-53002 | 9.8 CRITICAL | netfilter: conntrack: remove sprintf usage |
| CVE-2026-53006 | 9.8 CRITICAL | ipv6: fix possible UAF in icmpv6_rcv() |
| CVE-2026-53045 | 9.8 CRITICAL | memory: tegra124-emc: Fix dll_change check |
| CVE-2026-53046 | 9.8 CRITICAL | ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine |
| CVE-2026-52955 | 9.8 CRITICAL | libceph: Fix potential out-of-bounds access in crush_decode() |
| CVE-2026-53086 | 9.8 CRITICAL | net: bcmgenet: fix racing timeout handler |
| CVE-2026-53055 | 9.8 CRITICAL | crypto: hisilicon/sec2 - prevent req used-after-free for sec |
| CVE-2026-52924 | 9.8 CRITICAL | sctp: purge outqueue on stale COOKIE-ECHO handling |
| CVE-2026-53010 | 9.8 CRITICAL | ksmbd: fix use-after-free in smb2_open during durable reconnect |
| CVE-2026-52931 | 9.8 CRITICAL | batman-adv: tp_meter: avoid use of uninit sender vars |
| CVE-2026-53088 | 9.8 CRITICAL | net: bcmgenet: fix off-by-one in bcmgenet_put_txcb |
| CVE-2026-52914 | 9.8 CRITICAL | batman-adv: fix fragment reassembly length accounting |
| CVE-2026-52958 | 9.1 CRITICAL | libceph: Fix potential out-of-bounds access in osdmap_decode() |
| CVE-2026-53043 | 9.1 CRITICAL | ocfs2/dlm: validate qr_numregions in dlm_match_regions() |
| CVE-2026-52999 | 9.1 CRITICAL | netfilter: nfnetlink_osf: fix out-of-bounds read on option matching |
Showing top 20 of 219 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2026-53123
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