CVE-2022-50301
iommu/omap: Fix buffer overflow in debugfs
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.19
References 9
git.kernel.org
- stable/c/706e359cf046c142db290244c3f4938b20fbe805
- stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7
- stable/c/648472df221f2bbffb433b964bcb87baccc586d8
- stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782
- stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04
- stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4
- stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854
- stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e
- stable/c/184233a5202786b20220acd2d04ddf909ef18f29