01 Record

CVE-2023-53655

rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 7.0% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-10-07 15:21Z1 YR AGO

Last updated

2026-05-11 19:49Z5 MO AGO

Reserved

2025-10-07

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-674Uncontrolled RecursionClass
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

3ac217b33625b36b728d3e01250616a076c0c6338d7a9305c48d145c8b9ae94b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxaaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < eb18bc5a8678f431c500e6da1b8b5f34478d5bc1, aaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < 4c3d1a6720aefb02403ddfebe85db521d3af2c3b, aaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < c8a3341b339285495cf7c8d061d659465f2311e0, aaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < 93b6295f677d96b73cfcb703532f6c7369a60d96, aaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < 7b5a97333e920b69356e097f185bdc51d61e66ee, aaf2bc50df1f4bfc6857fc601fc7b21d5a18c6a1 to < 7a29fb4a4771124bc61de397dbfc1554dbbcc19c, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/eb18bc5a8678f431c500e6da1b8b5f34478d5bc1
git.kernel.orghttps://git.kernel.org/stable/c/4c3d1a6720aefb02403ddfebe85db521d3af2c3b
git.kernel.orghttps://git.kernel.org/stable/c/c8a3341b339285495cf7c8d061d659465f2311e0
git.kernel.orghttps://git.kernel.org/stable/c/93b6295f677d96b73cfcb703532f6c7369a60d96
git.kernel.orghttps://git.kernel.org/stable/c/7b5a97333e920b69356e097f185bdc51d61e66ee
git.kernel.orghttps://git.kernel.org/stable/c/7a29fb4a4771124bc61de397dbfc1554dbbcc19c

07 Fixed in

Debian 12

linux
Fixed in 6.1.37-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.3.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.3.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.