CVE-2022-50301

iommu/omap: Fix buffer overflow in debugfs

State: Published
Severity: Not scored
Published: Sep 15, 2025
Updated: May 11, 2026
Reserved: Sep 15, 2025

Description

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

iommu/omap: Fix buffer overflow in debugfs

There are two issues here:

1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 706e359cf046c142db290244c3f4938b20fbe805Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before ec53b99b6b9da8b501f001595a6260c03b42d5b7Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 648472df221f2bbffb433b964bcb87baccc586d8Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 4010a1afaae1c0fb9c2cac5de703bed29b1f1782Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 2fee0dbfaeaaa4bda04279ce772c4572b1429d04Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 0c7043a5b5c3b35f5dc8875757f71e7f491d64d4Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before bd0438f534b2e31b12f0b39b355c5dc2bbdaf854Affected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 9814cc350e0765ce69244bf55ae4c8b29facd27eAffected bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 184233a5202786b20220acd2d04ddf909ef18f29Affected
LinuxLinux	3.19Affected before 3.19Not affected 4.9.331 through 4.9.Not affected 4.14.296 through 4.14.Not affected 4.19.262 through 4.19.Not affected 5.4.220 through 5.4.Not affected 5.10.150 through 5.10.Not affected 5.15.75 through 5.15.Not affected 5.19.17 through 5.19.Not affected 6.0.3 through 6.0.Not affected 6.1 and laterNot affected

Product

Versions

LinuxLinux

bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 706e359cf046c142db290244c3f4938b20fbe805Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before ec53b99b6b9da8b501f001595a6260c03b42d5b7Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 648472df221f2bbffb433b964bcb87baccc586d8Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 4010a1afaae1c0fb9c2cac5de703bed29b1f1782Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 2fee0dbfaeaaa4bda04279ce772c4572b1429d04Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 0c7043a5b5c3b35f5dc8875757f71e7f491d64d4Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before bd0438f534b2e31b12f0b39b355c5dc2bbdaf854Affected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 9814cc350e0765ce69244bf55ae4c8b29facd27eAffected
bd4396f09a4a9e77423e92ec9448217ab46f6edf to before 184233a5202786b20220acd2d04ddf909ef18f29Affected

LinuxLinux

3.19Affected
before 3.19Not affected
4.9.331 through 4.9.*Not affected
4.14.296 through 4.14.*Not affected
4.19.262 through 4.19.*Not affected
5.4.220 through 5.4.*Not affected
5.10.150 through 5.10.*Not affected
5.15.75 through 5.15.*Not affected
5.19.17 through 5.19.*Not affected
6.0.3 through 6.0.*Not affected
6.1 and laterNot affected

References

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