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CVE-2021-47548

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM) return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

Related Files

Red Hat Security Advisory 2024-4902-03: Posted Jul 29, 2024; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2024-4902-03 - An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Issues addressed include double free and null pointer vulnerabilities.; tags | advisory, kernel, vulnerability; systems | linux, redhat; advisories | CVE-2021-47548; SHA-256 | 794b6b25a9bd88032a7517feef2d5094739be4addb8f6e1430313c7c6f00b446; Download | Favorite | View

Red Hat Security Advisory 2024-4583-03: Posted Jul 17, 2024; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2024-4583-03 - An update for kernel is now available for Red Hat Enterprise Linux 9. Issues addressed include code execution and use-after-free vulnerabilities.; tags | advisory, kernel, vulnerability, code execution; systems | linux, redhat; advisories | CVE-2021-47548; SHA-256 | 4ef86d7cb54e4f3530011c56c660939cad4f7c76d17bdcb218e74ff383401b36; Download | Favorite | View

Red Hat Security Advisory 2024-4554-03: Posted Jul 16, 2024; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2024-4554-03 - An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include code execution and use-after-free vulnerabilities.; tags | advisory, kernel, vulnerability, code execution; systems | linux, redhat; advisories | CVE-2021-47548; SHA-256 | 6a72b7e073de03c29bea48ab704bf02374db864360e373743def7004d5737b0f; Download | Favorite | View

Red Hat Security Advisory 2024-4533-03: Posted Jul 15, 2024; Authored by Red Hat | Site access.redhat.com; Red Hat Security Advisory 2024-4533-03 - An update for kernel is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include code execution and use-after-free vulnerabilities.; tags | advisory, kernel, vulnerability, code execution; systems | linux, redhat; advisories | CVE-2021-47548; SHA-256 | 0ffc9bcf4e7a87eb9e1a8e59599d90812f668148847ee41fda81f2233fc4cb4a; Download | Favorite | View

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CVE-2021-47548

Overview

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December 2024

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