CVE-2022-4696

01/תיאור (מקור, אנגלית)

There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above

02/מוצרים מושפעים

netapp: h410s firmware; netapp: h410s; netapp: h410c firmware; netapp: h410c; netapp: h700s firmware; netapp: h700s; netapp: h500s firmware; netapp: h500s; netapp: h300s firmware; netapp: h300s; linux: linux kernel

03/קישורים5

• git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commi‮… Mailing ListPatchVendor Advisory
• git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commi‮… Mailing ListPatchVendor Advisory
• security.netapp.com/advisory/ntap-20230223-0003/ Vendor Advisory
• kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a ExploitThird Party Advisory
• kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a ExploitThird Party Advisory