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{
"id" : "CVE-2022-4696" ,
"sourceIdentifier" : "cve-coordination@google.com" ,
"published" : "2023-01-11T13:15:09.307" ,
2023-11-07 21:03:21 +00:00
"lastModified" : "2023-11-07T03:58:36.397" ,
"vulnStatus" : "Modified" ,
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"descriptions" : [
{
"lang" : "en" ,
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"value" : "There exists a use-after-free vulnerability in the Linux kernel through io_uring and the\u00a0IORING_OP_SPLICE operation. If\u00a0IORING_OP_SPLICE is\u00a0missing 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\n"
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}
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"url" : "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=75454b4bbfc7e6a4dd8338556f36ea9107ddf61a" ,
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