ghsa-qx5f-76wj-2xm5
Vulnerability from github
Published
2024-06-20 12:31
Modified
2024-06-20 12:31
Details
In the Linux kernel, the following vulnerability has been resolved:
bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.
{
"affected": [],
"aliases": [
"CVE-2022-48770"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-20T12:15:14Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()\n\ntask_pt_regs() can return NULL on powerpc for kernel threads. This is\nthen used in __bpf_get_stack() to check for user mode, resulting in a\nkernel oops. Guard against this by checking return value of\ntask_pt_regs() before trying to obtain the call chain.",
"id": "GHSA-qx5f-76wj-2xm5",
"modified": "2024-06-20T12:31:22Z",
"published": "2024-06-20T12:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48770"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0bcd484587b3b3092e448d27dc369e347e1810c3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b82ef4985a6d05e80f604624332430351df7b79a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b992f01e66150fc5e90be4a96f5eb8e634c8249e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ff6bdc205fd0a83bd365405d4e31fb5905826996"
}
],
"schema_version": "1.4.0",
"severity": []
}
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