CVE-2022-50873
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...
Affected versions
Linux kernel versions
5.19
and later are affected. Fixed in
6.0.19,
6.1.5,
6.2
and their respective stable series.
References
The following references provide additional information about CVE-2022-50873 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/6ccc891f36d0c20ee220551caabdcd3886ec584b
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PatchKernel patch commithttps://git.kernel.org/stable/c/8fe12680b2c731201519935013ec9219c93ec540
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PatchKernel patch commithttps://git.kernel.org/stable/c/ed843d6ed7310a27cf7c8ee0a82a482eed0cb4a6
Frequently asked questions
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What is CVE-2022-50873?
CVE-2022-50873 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.19 onward and has been patched in 6.0.19, 6.1.5 and 6.2. CVE-2022-50873 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2022-50873?
Yes — CVE-2022-50873 has been patched. Fixed versions include 6.0.19, 6.1.5 and 6.2. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50873 actively exploited?
No — CVE-2022-50873 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.