Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 706e359cf046c142db290244c3f4938b20fbe805; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before ec53b99b6b9da8b501f001595a6260c03b42d5b7; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 648472df221f2bbffb433b964bcb87baccc586d8; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 4010a1afaae1c0fb9c2cac5de703bed29b1f1782; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 2fee0dbfaeaaa4bda04279ce772c4572b1429d04; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 0c7043a5b5c3b35f5dc8875757f71e7f491d64d4; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before bd0438f534b2e31b12f0b39b355c5dc2bbdaf854; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 9814cc350e0765ce69244bf55ae4c8b29facd27e; affected bd4396f09a4a9e77423e92ec9448217ab46f6edf before 184233a5202786b20220acd2d04ddf909ef18f29 |
| Linux / Linux | affected 3.19; unaffected 0 before 3.19; unaffected 4.9.331 through 4.9.*; unaffected 4.14.296 through 4.14.*; unaffected 4.19.262 through 4.19.*; unaffected 5.4.220 through 5.4.*; unaffected 5.10.150 through 5.10.*; unaffected 5.15.75 through 5.15.*; unaffected 5.19.17 through 5.19.*; unaffected 6.0.3 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805
- https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7
- https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8
- https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782
- https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04
- https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4
- https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854
- https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e
- https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29