From bippy-a5840b7849dd Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman To: Reply-to: , Subject: CVE-2021-47614: RDMA/irdma: Fix a user-after-free in add_pble_prm Description =========== In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix a user-after-free in add_pble_prm When irdma_hmc_sd_one fails, 'chunk' is freed while its still on the PBLE info list. Add the chunk entry to the PBLE info list only after successful setting of the SD in irdma_hmc_sd_one. The Linux kernel CVE team has assigned CVE-2021-47614 to this issue. Affected and fixed versions =========================== Issue introduced in 5.14 with commit e8c4dbc2fcac and fixed in 5.15.10 with commit 11eebcf63e98 Issue introduced in 5.14 with commit e8c4dbc2fcac and fixed in 5.16 with commit 1e11a39a82e9 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2021-47614 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/infiniband/hw/irdma/pble.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/11eebcf63e98fcf047a876a51d76afdabc3b8b9b https://git.kernel.org/stable/c/1e11a39a82e95ce86f849f40dda0d9c0498cebd9