Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: fix double-free issue in tcpm_port_unregister_pd() When unregister pd capabilitie in tcpm, KASAN will capture below double -free issue. The root cause is the same capabilitiy will be kfreed twice, the first time is kfreed by pd_capabilities_release() and the second time is explicitly kfreed by tcpm_port_unregister_pd(). [ 3.988059] BUG: KASAN: double-free in tcpm_port_unregister_pd+0x1a4/0x3dc [ 3.995001] Free of addr ffff0008164d3000 by task kworker/u16:0/10 [ 4.001206] [ 4.002712] CPU: 2 PID: 10 Comm: kworker/u16:0 Not tainted 6.8.0-rc5-next-20240220-05616-g52728c567a55 #53 [ 4.012402] Hardware name: Freescale i.MX8QXP MEK (DT) [ 4.017569] Workqueue: events_unbound deferred_probe_work_func [ 4.023456] Call trace: [ 4.025920] dump_backtrace+0x94/0xec [ 4.029629] show_stack+0x18/0x24 [ 4.032974] dump_stack_lvl+0x78/0x90 [ 4.036675] print_report+0xfc/0x5c0 [ 4.040289] kasan_report_invalid_free+0xa0/0xc0 [ 4.044937] __kasan_slab_free+0x124/0x154 [ 4.049072] kfree+0xb4/0x1e8 [ 4.052069] tcpm_port_unregister_pd+0x1a4/0x3dc [ 4.056725] tcpm_register_port+0x1dd0/0x2558 [ 4.061121] tcpci_register_port+0x420/0x71c [ 4.065430] tcpci_probe+0x118/0x2e0 To fix the issue, this will remove kree() from tcpm_port_unregister_pd().

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  7.8 HIGH

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

ADP:  CISA-ADP

Base Score:  7.1 HIGH

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

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

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Hyperlink	Resource
https://git.kernel.org/stable/c/242e425ed580b2f4dbcb86c8fc03a410a4084a69	Patch
https://git.kernel.org/stable/c/b63f90487bdf93a4223ce7853d14717e9d452856	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-415	Double Free	NIST   CISA-ADP

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Change History

5 change records found show changes

CVE Modified by CISA-ADP 7/02/2024 9:50:02 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Added	CWE		CISA-ADP CWE-415

CVE Modified by kernel.org 5/29/2024 2:17:26 AM

Action	Type	Old Value	New Value

Initial Analysis by NIST 5/23/2024 3:12:39 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 6.8 up to (excluding) 6.8.3 *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-415
Changed	Reference Type	https://git.kernel.org/stable/c/242e425ed580b2f4dbcb86c8fc03a410a4084a69 No Types Assigned	https://git.kernel.org/stable/c/242e425ed580b2f4dbcb86c8fc03a410a4084a69 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/b63f90487bdf93a4223ce7853d14717e9d452856 No Types Assigned	https://git.kernel.org/stable/c/b63f90487bdf93a4223ce7853d14717e9d452856 Patch

CVE Modified by kernel.org 5/14/2024 11:10:49 AM

Action	Type	Old Value	New Value

New CVE Received by NIST 5/01/2024 2:15:07 AM

Action	Type	Old Value	New Value
Added	Description		Record truncated, showing 500 of 1388 characters. View Entire Change Record In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: fix double-free issue in tcpm_port_unregister_pd() When unregister pd capabilitie in tcpm, KASAN will capture below double -free issue. The root cause is the same capabilitiy will be kfreed twice, the first time is kfreed by pd_capabilities_release() and the second time is explicitly kfreed by tcpm_port_unregister_pd(). [ 3.988059] BUG: KASAN: double-free in tcpm_port_unregister_pd+0x1a4/0x3dc [ 3.9950
Added	Reference		kernel.org https://git.kernel.org/stable/c/242e425ed580b2f4dbcb86c8fc03a410a4084a69 [No types assigned]
Added	Reference		kernel.org https://git.kernel.org/stable/c/b63f90487bdf93a4223ce7853d14717e9d452856 [No types assigned]