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
Affected Vendors & Products
References
        History
                    Wed, 05 Feb 2025 22:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | cvssV3_1 
 
 | cvssV3_1 
 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: Linux
Published: 2024-05-01T05:17:19.129Z
Updated: 2025-05-04T09:00:01.282Z
Reserved: 2024-02-19T14:20:24.195Z
Link: CVE-2024-26932
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-02T00:21:05.593Z
 NVD
                        NVD
                    Status : Modified
Published: 2024-05-01T06:15:07.810
Modified: 2025-02-05T22:15:28.717
Link: CVE-2024-26932
 Redhat
                        Redhat