Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:bpf: Mark bpf prog stack with kmsan_unposion_memory in interpreter mode
syzbot reported uninit memory usages during map_{lookup,delete}_elem.
==========
BUG: KMSAN: uninit-value in __dev_map_lookup_elem kernel/bpf/devmap.c:441 [inline]
BUG: KMSAN: uninit-value in dev_map_lookup_elem+0xf3/0x170 kernel/bpf/devmap.c:796
__dev_map_lookup_elem kernel/bpf/devmap.c:441 [inline]
dev_map_lookup_elem+0xf3/0x170 kernel/bpf/devmap.c:796
____bpf_map_lookup_elem kernel/bpf/helpers.c:42 [inline]
bpf_map_lookup_elem+0x5c/0x80 kernel/bpf/helpers.c:38
___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
__bpf_prog_run256+0xb5/0xe0 kernel/bpf/core.c:2237
==========
The reproducer should be in the interpreter mode.
The C reproducer is trying to run the following bpf prog:
0: (18) r0 = 0x0
2: (18) r1 = map[id:49]
4: (b7) r8 = 16777216
5: (7b) *(u64 *)(r10 -8) = r8
6: (bf) r2 = r10
7: (07) r2 += -229
^^^^^^^^^^
8: (b7) r3 = 8
9: (b7) r4 = 0
10: (85) call dev_map_lookup_elem#1543472
11: (95) exit
It is due to the "void *key" (r2) passed to the helper. bpf allows uninit
stack memory access for bpf prog with the right privileges. This patch
uses kmsan_unpoison_memory() to mark the stack as initialized.
This should address different syzbot reports on the uninit "void *key"
argument during map_{lookup,delete}_elem.
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having low severity.
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 5.5 | 0 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N |
| Attack Vector | Local | Local |
| Attack Complexity | Low | High |
| Privileges Required | Low | High |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | None |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Micro 5.1 | kernel-default | Won't fix |
| SUSE Linux Enterprise Micro 5.1 | kernel-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.2 | kernel-default | Won't fix |
| SUSE Linux Enterprise Micro 5.2 | kernel-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.3 | kernel-default | Won't fix |
| SUSE Linux Enterprise Micro 5.3 | kernel-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.4 | kernel-default | Won't fix |
| SUSE Linux Enterprise Micro 5.4 | kernel-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Micro 6.0 | kernel-default | Won't fix |
| SUSE Linux Enterprise Micro 6.0 | kernel-source | Won't fix |
| SUSE Linux Enterprise Micro 6.0 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Server 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source-azure | Won't fix |
| SUSE Manager Proxy 4.3 | kernel-default | Won't fix |
| SUSE Manager Proxy 4.3 | kernel-source | Won't fix |
| SUSE Manager Retail Branch Server 4.3 | kernel-default | Won't fix |
| SUSE Manager Retail Branch Server 4.3 | kernel-source | Won't fix |
| SUSE Manager Server 4.3 | kernel-default | Won't fix |
| SUSE Manager Server 4.3 | kernel-source | Won't fix |
| SUSE Real Time Module 15 SP5 | kernel-source-rt | Won't fix |
| SUSE Real Time Module 15 SP6 | kernel-source-rt | Won't fix |
| openSUSE Leap 15.5 | kernel-default | Won't fix |
| openSUSE Leap 15.5 | kernel-source | Won't fix |
| openSUSE Leap 15.5 | kernel-source-azure | Won't fix |
| openSUSE Leap 15.5 | kernel-source-rt | Won't fix |
| openSUSE Leap 15.6 | kernel-default | Won't fix |
| openSUSE Leap 15.6 | kernel-source | Won't fix |
| openSUSE Leap 15.6 | kernel-source-azure | Won't fix |
| openSUSE Leap 15.6 | kernel-source-rt | Won't fix |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Won't fix |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | kernel-source | Not affected |
| SUSE CaaS Platform 4.0 | kernel-source | Won't fix |
| SUSE CaaS Platform Toolchain 3 | kernel-source | Not affected |
| SUSE Enterprise Storage 6 | kernel-source | Won't fix |
| SUSE Enterprise Storage 7 | kernel-source | Won't fix |
| SUSE Enterprise Storage 7.1 | kernel-default | Won't fix |
| SUSE Enterprise Storage 7.1 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Micro 5.0 | kernel-default | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Won't fix |
| SUSE Linux Enterprise Real Time 12 SP5 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Won't fix |
| SUSE Linux Enterprise Server 11 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP1 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 15-LTSS | kernel-default | Won't fix |
| SUSE Linux Enterprise Server 15-LTSS | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-default | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Won't fix |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Won't fix |
| SUSE Manager Proxy 4.0 | kernel-source | Won't fix |
| SUSE Manager Proxy 4.1 | kernel-source | Won't fix |
| SUSE Manager Proxy 4.2 | kernel-source | Won't fix |
| SUSE Manager Retail Branch Server 4.0 | kernel-source | Won't fix |
| SUSE Manager Retail Branch Server 4.1 | kernel-source | Won't fix |
| SUSE Manager Retail Branch Server 4.2 | kernel-source | Won't fix |
| SUSE Manager Server 4.0 | kernel-source | Won't fix |
| SUSE Manager Server 4.1 | kernel-source | Won't fix |
| SUSE Manager Server 4.2 | kernel-source | Won't fix |
| SUSE OpenStack Cloud 8 | kernel-source | Not affected |
| SUSE OpenStack Cloud 9 | kernel-source | Won't fix |
| SUSE OpenStack Cloud Crowbar 8 | kernel-source | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source | Won't fix |
| SUSE Real Time Module 15 SP3 | kernel-source-rt | Won't fix |
| SUSE Real Time Module 15 SP4 | kernel-source-rt | Won't fix |
| openSUSE Leap 15.3 | kernel-source | Won't fix |
| openSUSE Leap 15.3 | kernel-source-rt | Won't fix |
| openSUSE Leap 15.4 | kernel-source | Won't fix |
| openSUSE Leap 15.4 | kernel-source-azure | Unsupported |
| openSUSE Leap 15.4 | kernel-source-rt | Won't fix |
| Products at an unknown state of their lifecycle. | ||
| SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security | kernel-source | Won't fix |
| SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security | kernel-source-azure | Won't fix |
SUSE Timeline for this CVE
CVE page created: Mon Jul 29 18:04:49 2024CVE page last modified: Tue Nov 12 15:14:12 2024