CVE-2022-50301
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.19% probability · 8th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4Patch
- https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29Patch
- https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04Patch
- https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782Patch
- https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8Patch
- https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805Patch
- https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27ePatch
- https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854Patch
- https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.