CVE-2021-41073
High
Description
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 19, 2021
First seenSep 19, 2021
How to fix
Update
- linux linux_kernel5.10.68, 5.14.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.10 ≤ v < 5.10.68, 5.11 ≤ v < 5.14.7 | 5.10.68, 5.14.7 |
| debian debian_linux | 10.0 | — |
| fedoraproject fedora | 33, 34 | — |
| netapp cloud_backup | No range specified | — |
| netapp solidfire_baseboard_management_controller | No range specified | — |
| netapp h410c_firmware | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h300e_firmware | No range specified | — |
| netapp h500e_firmware | No range specified | — |
| netapp h700e_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
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