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CVE-2022-50575

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CVE-2022-50575

Published: Oct 22, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource() As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning. Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.

VendorProductVersions

Linux

Linux

affected
3ad0876554cafa368f574d4d408468510543e9ff - < 5d68ae32d132ea2af73bc223fd64c46f85302a8b
affected
3ad0876554cafa368f574d4d408468510543e9ff - < 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5
affected
3ad0876554cafa368f574d4d408468510543e9ff - < 46026bb057c35f5bb111bf95e00cd8366d2e34d4
affected
3ad0876554cafa368f574d4d408468510543e9ff - < 0bf874183b32eae2cc20e3c5be38ec3d33e7e564
affected
3ad0876554cafa368f574d4d408468510543e9ff - < e0c5f1058ed96f2b7487560c4c4cbd768d13d065

+2 more versions

Linux

Linux

affected
4.18
unaffected
0 - < 4.18
unaffected
4.19.270 - <= 4.19.*
unaffected
5.4.229 - <= 5.4.*
unaffected
5.10.163 - <= 5.10.*

+4 more versions

References

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