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Vulnerability details: VCID-1c99-bwws-q3gp
Vulnerability ID VCID-1c99-bwws-q3gp
Aliases CVE-2023-52629
Summary In the Linux kernel, the following vulnerability has been resolved: sh: push-switch: Reorder cleanup operations to avoid use-after-free bug The original code puts flush_work() before timer_shutdown_sync() in switch_drv_remove(). Although we use flush_work() to stop the worker, it could be rescheduled in switch_timer(). As a result, a use-after-free bug can occur. The details are shown below: (cpu 0) | (cpu 1) switch_drv_remove() | flush_work() | ... | switch_timer // timer | schedule_work(&psw->work) timer_shutdown_sync() | ... | switch_work_handler // worker kfree(psw) // free | | psw->state = 0 // use This patch puts timer_shutdown_sync() before flush_work() to mitigate the bugs. As a result, the worker and timer will be stopped safely before the deallocate operations.
Status Published
Exploitability 0.5
Weighted Severity 6.7
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52629.json
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2023-52629
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2023-52629
epss 0.0002 https://api.first.org/data/v1/epss?cve=CVE-2023-52629
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 8.4 https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65
ssvc Track https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65
cvssv3.1 8.4 https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de
ssvc Track https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52629.json
https://api.first.org/data/v1/epss?cve=CVE-2023-52629
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52629
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2272204 https://bugzilla.redhat.com/show_bug.cgi?id=2272204
246f80a0b17f8f582b2c0996db02998239057c65 https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65
610dbd8ac271aa36080aac50b928d700ee3fe4de https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de
USN-6972-1 https://usn.ubuntu.com/6972-1/
USN-6972-2 https://usn.ubuntu.com/6972-2/
USN-6972-3 https://usn.ubuntu.com/6972-3/
USN-6972-4 https://usn.ubuntu.com/6972-4/
USN-6973-1 https://usn.ubuntu.com/6973-1/
USN-6973-2 https://usn.ubuntu.com/6973-2/
USN-6973-3 https://usn.ubuntu.com/6973-3/
USN-6973-4 https://usn.ubuntu.com/6973-4/
USN-6974-1 https://usn.ubuntu.com/6974-1/
USN-6974-2 https://usn.ubuntu.com/6974-2/
USN-6976-1 https://usn.ubuntu.com/6976-1/
USN-7006-1 https://usn.ubuntu.com/7006-1/
USN-7019-1 https://usn.ubuntu.com/7019-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-52629.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-04-01T17:41:22Z/ Found at https://git.kernel.org/stable/c/246f80a0b17f8f582b2c0996db02998239057c65
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-04-01T17:41:22Z/ Found at https://git.kernel.org/stable/c/610dbd8ac271aa36080aac50b928d700ee3fe4de
Exploit Prediction Scoring System (EPSS)
Percentile 0.05833
EPSS Score 0.0002
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:47:41.492637+00:00 Debian Importer Import https://security-tracker.debian.org/tracker/data/json 38.6.0