| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-48841: ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats() |
| |
| It is possible to do NULL pointer dereference in routine that updates |
| Tx ring stats. Currently only stats and bytes are updated when ring |
| pointer is valid, but later on ring is accessed to propagate gathered Tx |
| stats onto VSI stats. |
| |
| Change the existing logic to move to next ring when ring is NULL. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48841 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.16 with commit e72bba21355dbb67512a0d666fec9f4b56dbfc2f and fixed in 5.16.17 with commit 2397270ec97c5e3009a58ac110a25e1869e9d6ff |
| Issue introduced in 5.16 with commit e72bba21355dbb67512a0d666fec9f4b56dbfc2f and fixed in 5.17 with commit f153546913bada41a811722f2c6d17c3243a0333 |
| |
| 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-2022-48841 |
| 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/net/ethernet/intel/ice/ice_main.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/2397270ec97c5e3009a58ac110a25e1869e9d6ff |
| https://git.kernel.org/stable/c/f153546913bada41a811722f2c6d17c3243a0333 |
