Riskcovery

CVE-2022-50873

vdpa/vp_vdpa: fix kfree a wrong pointer in vp_vdpa_remove

State
Published
Severity
Not scored
Published
Dec 30, 2025
Updated
May 11, 2026
Reserved
Dec 30, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

vdpa/vp_vdpa: fix kfree a wrong pointer in vp_vdpa_remove

In vp_vdpa_remove(), the code kfree(&vp_vdpa_mgtdev->mgtdev.id_table) uses a reference of pointer as the argument of kfree, which is the wrong pointer and then may hit crash like this:

Unable to handle kernel paging request at virtual address 00ffff003363e30c Internal error: Oops: 96000004 [#1] SMP Call trace: rb_next+0x20/0x5c ext4_readdir+0x494/0x5c4 [ext4] iterate_dir+0x168/0x1b4 __se_sys_getdents64+0x68/0x170 __arm64_sys_getdents64+0x24/0x30 el0_svc_common.constprop.0+0x7c/0x1bc do_el0_svc+0x2c/0x94 el0_svc+0x20/0x30 el0_sync_handler+0xb0/0xb4 el0_sync+0x160/0x180 Code: 54000220 f9400441 b4000161 aa0103e0 (f9400821) SMP: stopping secondary CPUs Starting crashdump kernel...

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • ffbda8e9df10d1784d5427ec199e7d8308e3763f to before 8fe12680b2c731201519935013ec9219c93ec540Affected
  • ffbda8e9df10d1784d5427ec199e7d8308e3763f to before 6ccc891f36d0c20ee220551caabdcd3886ec584bAffected
  • ffbda8e9df10d1784d5427ec199e7d8308e3763f to before ed843d6ed7310a27cf7c8ee0a82a482eed0cb4a6Affected
LinuxLinux
  • 5.19Affected
  • before 5.19Not affected
  • 6.0.19 through 6.0.*Not affected
  • 6.1.5 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

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