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CVE-2026-53355— net: rds: clear i_sends on setup unwind

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基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于RDS IB连接拆除路径中i_sends指针清理不当，可能导致释放后重用。

CVSS 9.8 · Critical EPSS 0.42% · P35

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 26

VendorProduct Version RangeStatus
Linux Linux 3b12f73a5c2977153f28a224392fd4729b50d1dc< 66cccec111421a10efdc2c74499d15b93e7acae5 affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< 2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< 29d940026dce39e3018dab6f67c9427249321270 affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< e7cf30aa5f1fc6c2a86df65df8b731df20e44d79 affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< 1d4ec754ee3871f7e3670c67bb0298c9c5760926 affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< 27040bbca289a704eafcacca167d310c6ce2b1bc affected
3b12f73a5c2977153f28a224392fd4729b50d1dc< 20cf0fb715c41111469577e85e35d15f099473e0 affected
… +18 more rows
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I. Basic Information for CVE-2026-53355

Vulnerability Information
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Vulnerability Title
net: rds: clear i_sends on setup unwind
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. A later shutdown pass can still treat that stale pointer as a live send ring allocation. Clear i_sends after vfree() in the error unwind path so the existing shutdown logic continues to use the correct ownership state.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于RDS IB连接拆除路径中i_sends指针清理不当，可能导致释放后重用。
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 3b12f73a5c2977153f28a224392fd4729b50d1dc ~ 66cccec111421a10efdc2c74499d15b93e7acae5 -
Linux Linux 4.11 -

II. Public POCs for CVE-2026-53355

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III. Intelligence Information for CVE-2026-53355

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Patches & Fixes for CVE-2026-53355 (8)

Same Patch Batch · Linux · 2026-07-01 · 31 CVEs total

CVE-2026-53354 8.8 HIGH arm64: errata: Mitigate TLBI errata on various Arm CPUs
CVE-2026-53341 7.8 HIGH fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
CVE-2026-53356 7.8 HIGH drm/i915/gem: Fix phys BO pread/pwrite with offset
CVE-2026-53329 7.0 HIGH drm/amd/display: Use krealloc_array() in dal_vector_reserve()
CVE-2026-53326 debugobjects: Don't call fill_pool() in early boot hardirq context
CVE-2026-53330 drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
CVE-2026-53353 hsr: Remove WARN_ONCE() in hsr_addr_is_self().
CVE-2026-53328 sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()
CVE-2026-53352 signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
CVE-2026-53351 riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI
CVE-2026-53350 ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
CVE-2026-53348 ASoC: SDCA: fix NULL pointer dereference in sdca_dev_unregister_functions
CVE-2026-53349 netfilter: nf_conntrack: destroy stale expectfn expectations on unregister
CVE-2026-53346 rust: arm64: set uwtable llvm module flag for CONFIG_UNWIND_TABLES
CVE-2026-53347 drm/virtio: Fix driver removal with disabled KMS
CVE-2026-53344 pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init
CVE-2026-53345 KVM: Don't WARN if memory is dirtied without a vCPU when the VM is dying
CVE-2026-53343 ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow
CVE-2026-53342 arm64: mm: call pagetable dtor when freeing hot-removed page tables
CVE-2026-53327 debugobjects: Do not fill_pool() if pi_blocked_on

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53355

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