CVE-2021-47538

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()

Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local.

[DH: v2: Changed to abstract the peer freeing code out into a function]

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
LinuxLinux>= e8e51ce79c157188e209e5ea0afaf6b42dd76104, < 913c24af2d13a3fd304462916ee98e298d56bdce; >= 9ebeddef58c41bd700419cdcece24cf64ce32276, < 3e70e3a72d80b16094faccbe438cd53761c3503a; >= 9ebeddef58c41bd700419cdcece24cf64ce32276, < 60f0b9c42cb80833a03ca57c1c8b078d716e71d1; >= 9ebeddef58c41bd700419cdcece24cf64ce32276, < 9469273e616ca8f1b6e3773c5019f21b4c8d828c; >= 9ebeddef58c41bd700419cdcece24cf64ce32276, < beacff50edbd6c9659a6f15fc7f6126909fade29; 9b7fc03b4cdbfb668b6891967105258691c6d3b5; >= 4.19.82, < 4.19.220; >= 5.3.9, < 5.4
LinuxLinux5.4

References

Timeline

Published
May 24, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2021

CVE-2021-475395.5In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle() Need to call rxrpCVE-2021-475405.5In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode Fix CVE-2021-475417.8In the Linux kernel, the following vulnerability has been resolved: net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()CVE-2021-475425.5In the Linux kernel, the following vulnerability has been resolved: net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_CVE-2021-475445.9In the Linux kernel, the following vulnerability has been resolved: tcp: fix page frag corruption on page fault Steffen reported a TCP strCVE-2021-475465.5In the Linux kernel, the following vulnerability has been resolved: ipv6: fix memory leak in fib6_rule_suppress The kernel leaks memory whCVE-2021-475474.4In the Linux kernel, the following vulnerability has been resolved: net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be oCVE-2021-475489.8In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow CVE-2021-475497.8In the Linux kernel, the following vulnerability has been resolved: sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl When the `CVE-2021-475505.5In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu: fix potential memleak In function amdgpu_get_xgmi_hiveCVE-2021-475517.8In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered aCVE-2021-475525.5In the Linux kernel, the following vulnerability has been resolved: blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_
CVE-2021-47538: Medium severity, CVSS 5.5 | Vulnix