ghsa-hp2j-q576-5vvw
Vulnerability from github
Published
2024-07-30 09:31
Modified
2024-07-30 09:31
Details
In the Linux kernel, the following vulnerability has been resolved:
s390/dasd: Fix invalid dereferencing of indirect CCW data pointer
Fix invalid dereferencing of indirect CCW data pointer in dasd_eckd_dump_sense() that leads to a kernel panic in error cases.
When using indirect addressing for DASD CCWs (IDAW) the CCW CDA pointer does not contain the data address itself but a pointer to the IDAL. This needs to be translated from physical to virtual as well before using it.
This dereferencing is also used for dasd_page_cache and also fixed although it is very unlikely that this code path ever gets used.
{ affected: [], aliases: [ "CVE-2024-42099", ], database_specific: { cwe_ids: [], github_reviewed: false, github_reviewed_at: null, nvd_published_at: "2024-07-30T08:15:02Z", severity: null, }, details: "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Fix invalid dereferencing of indirect CCW data pointer\n\nFix invalid dereferencing of indirect CCW data pointer in\ndasd_eckd_dump_sense() that leads to a kernel panic in error cases.\n\nWhen using indirect addressing for DASD CCWs (IDAW) the CCW CDA pointer\ndoes not contain the data address itself but a pointer to the IDAL.\nThis needs to be translated from physical to virtual as well before\nusing it.\n\nThis dereferencing is also used for dasd_page_cache and also fixed\nalthough it is very unlikely that this code path ever gets used.", id: "GHSA-hp2j-q576-5vvw", modified: "2024-07-30T09:31:51Z", published: "2024-07-30T09:31:51Z", references: [ { type: "ADVISORY", url: "https://nvd.nist.gov/vuln/detail/CVE-2024-42099", }, { type: "WEB", url: "https://git.kernel.org/stable/c/b3a58f3b90f564f42a5c35778d8c5107b2c2150b", }, { type: "WEB", url: "https://git.kernel.org/stable/c/c116475f7d6410b1e6d399207ac75de6cf9c3652", }, ], schema_version: "1.4.0", severity: [], }
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