NULL Pointer Dereference Affecting libperf package, versions <0:5.14.0-362.8.1.el9_3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-CENTOS9-LIBPERF-13474879
- published8 Oct 2025
- disclosed7 Oct 2025
Introduced: 7 Oct 2025
NewCVE-2022-50532 (opens in a new tab)How to fix?
Upgrade Centos:9 libperf to version 0:5.14.0-362.8.1.el9_3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by Centos.
See How to fix? for Centos:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add()
In mpt3sas_transport_port_add(), if sas_rphy_add() returns error, sas_rphy_free() needs be called to free the resource allocated in sas_end_device_alloc(). Otherwise a kernel crash will happen:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: device_del+0x54/0x3d0 attribute_container_class_device_del+0x28/0x38 transport_remove_classdev+0x6c/0x80 attribute_container_device_trigger+0x108/0x110 transport_remove_device+0x28/0x38 sas_rphy_remove+0x50/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_rphy_remove+0x38/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_remove_host+0x20/0x38 [scsi_transport_sas] scsih_remove+0xd8/0x420 [mpt3sas]
Because transport_add_device() is not called when sas_rphy_add() fails, the device is not added. When sas_rphy_remove() is subsequently called to remove the device in the remove() path, a NULL pointer dereference happens.
References
- https://access.redhat.com/security/cve/CVE-2022-50532
- https://git.kernel.org/stable/c/6a92129c8f999ff5b122c100ce7f625eb3e98c4b
- https://git.kernel.org/stable/c/6f6768e2fc8638fabdd8802c2ef693d7aef01db1
- https://git.kernel.org/stable/c/78316e9dfc24906dd474630928ed1d3c562b568e
- https://git.kernel.org/stable/c/ce1a69cc85006b494353911b35171da195d79e25
- https://git.kernel.org/stable/c/d17bca3ddfe507874cb826d32721552da12e741f
- https://git.kernel.org/stable/c/d60000cb1195a464080b0efb4949daf7594e0020