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.
Product status
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 706e359cf046c142db290244c3f4938b20fbe805
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before ec53b99b6b9da8b501f001595a6260c03b42d5b7
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 648472df221f2bbffb433b964bcb87baccc586d8
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 4010a1afaae1c0fb9c2cac5de703bed29b1f1782
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 2fee0dbfaeaaa4bda04279ce772c4572b1429d04
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 0c7043a5b5c3b35f5dc8875757f71e7f491d64d4
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before bd0438f534b2e31b12f0b39b355c5dc2bbdaf854
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 9814cc350e0765ce69244bf55ae4c8b29facd27e
bd4396f09a4a9e77423e92ec9448217ab46f6edf (git) before 184233a5202786b20220acd2d04ddf909ef18f29
3.19
Any version before 3.19
4.9.331 (semver)
4.14.296 (semver)
4.19.262 (semver)
5.4.220 (semver)
5.10.150 (semver)
5.15.75 (semver)
5.19.17 (semver)
6.0.3 (semver)
6.1 (original_commit_for_fix)
References
git.kernel.org/...c/706e359cf046c142db290244c3f4938b20fbe805
git.kernel.org/...c/ec53b99b6b9da8b501f001595a6260c03b42d5b7
git.kernel.org/...c/648472df221f2bbffb433b964bcb87baccc586d8
git.kernel.org/...c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782
git.kernel.org/...c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04
git.kernel.org/...c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4
git.kernel.org/...c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854
git.kernel.org/...c/9814cc350e0765ce69244bf55ae4c8b29facd27e
git.kernel.org/...c/184233a5202786b20220acd2d04ddf909ef18f29
