Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:xdp, net: Fix use-after-free in bpf_xdp_link_release
The problem occurs between dev_get_by_index() and dev_xdp_attach_link().
At this point, dev_xdp_uninstall() is called. Then xdp link will not be
detached automatically when dev is released. But link->dev already
points to dev, when xdp link is released, dev will still be accessed,
but dev has been released.
dev_get_by_index() |
link->dev = dev |
| rtnl_lock()
| unregister_netdevice_many()
| dev_xdp_uninstall()
| rtnl_unlock()
rtnl_lock(); |
dev_xdp_attach_link() |
rtnl_unlock(); |
| netdev_run_todo() // dev released
bpf_xdp_link_release() |
/* access dev. |
use-after-free */ |
[ 45.966867] BUG: KASAN: use-after-free in bpf_xdp_link_release+0x3b8/0x3d0
[ 45.967619] Read of size 8 at addr ffff00000f9980c8 by task a.out/732
[ 45.968297]
[ 45.968502] CPU: 1 PID: 732 Comm: a.out Not tainted 5.13.0+ #22
[ 45.969222] Hardware name: linux,dummy-virt (DT)
[ 45.969795] Call trace:
[ 45.970106] dump_backtrace+0x0/0x4c8
[ 45.970564] show_stack+0x30/0x40
[ 45.970981] dump_stack_lvl+0x120/0x18c
[ 45.971470] print_address_description.constprop.0+0x74/0x30c
[ 45.972182] kasan_report+0x1e8/0x200
[ 45.972659] __asan_report_load8_noabort+0x2c/0x50
[ 45.973273] bpf_xdp_link_release+0x3b8/0x3d0
[ 45.973834] bpf_link_free+0xd0/0x188
[ 45.974315] bpf_link_put+0x1d0/0x218
[ 45.974790] bpf_link_release+0x3c/0x58
[ 45.975291] __fput+0x20c/0x7e8
[ 45.975706] ____fput+0x24/0x30
[ 45.976117] task_work_run+0x104/0x258
[ 45.976609] do_notify_resume+0x894/0xaf8
[ 45.977121] work_pending+0xc/0x328
[ 45.977575]
[ 45.977775] The buggy address belongs to the page:
[ 45.978369] page:fffffc00003e6600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4f998
[ 45.979522] flags: 0x7fffe0000000000(node=0|zone=0|lastcpupid=0x3ffff)
[ 45.980349] raw: 07fffe0000000000 fffffc00003e6708 ffff0000dac3c010 0000000000000000
[ 45.981309] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 45.982259] page dumped because: kasan: bad access detected
[ 45.982948]
[ 45.983153] Memory state around the buggy address:
[ 45.983753] ffff00000f997f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 45.984645] ffff00000f998000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 45.985533] >ffff00000f998080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 45.986419] ^
[ 45.987112] ffff00000f998100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 45.988006] ffff00000f998180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 45.988895] ==================================================================
[ 45.989773] Disabling lock debugging due to kernel taint
[ 45.990552] Kernel panic - not syncing: panic_on_warn set ...
[ 45.991166] CPU: 1 PID: 732 Comm: a.out Tainted: G B 5.13.0+ #22
[ 45.991929] Hardware name: linux,dummy-virt (DT)
[ 45.992448] Call trace:
[ 45.992753] dump_backtrace+0x0/0x4c8
[ 45.993208] show_stack+0x30/0x40
[ 45.993627] dump_stack_lvl+0x120/0x18c
[ 45.994113] dump_stack+0x1c/0x34
[ 45.994530] panic+0x3a4/0x7d8
[ 45.994930] end_report+0x194/0x198
[ 45.995380] kasan_report+0x134/0x200
[ 45.995850] __asan_report_load8_noabort+0x2c/0x50
[ 45.996453] bpf_xdp_link_release+0x3b8/0x3d0
[ 45.997007] bpf_link_free+0xd0/0x188
[ 45.997474] bpf_link_put+0x1d0/0x218
[ 45.997942] bpf_link_release+0x3c/0x58
[ 45.998429] __fput+0x20c/0x7e8
[ 45.998833] ____fput+0x24/0x30
[ 45.999247] task_work_run+0x104/0x258
[ 45.999731] do_notify_resume+0x894/0xaf8
[ 46.000236] work_pending
---truncated---
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| SUSE | |
|---|---|
| Base Score | 5.5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 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 | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Micro 5.1 | kernel-default | Not affected |
| SUSE Linux Enterprise Micro 5.1 | kernel-rt | Not affected |
| SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Not affected |
| SUSE Linux Enterprise Micro 5.2 | kernel-default | Not affected |
| SUSE Linux Enterprise Micro 5.2 | kernel-rt | Not affected |
| SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Not affected |
| SUSE Linux Enterprise Micro 5.3 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-default | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source-azure | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source-azure | Already fixed |
| SUSE Manager Proxy 4.3 | kernel-default | Already fixed |
| SUSE Manager Proxy 4.3 | kernel-source | Already fixed |
| SUSE Manager Retail Branch Server 4.3 | kernel-default | Already fixed |
| SUSE Manager Retail Branch Server 4.3 | kernel-source | Already fixed |
| SUSE Manager Server 4.3 | kernel-default | Already fixed |
| SUSE Manager Server 4.3 | kernel-source | Already fixed |
| SUSE Real Time Module 15 SP5 | kernel-source-rt | Already fixed |
| SUSE Real Time Module 15 SP6 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.5 | kernel-default | Already fixed |
| openSUSE Leap 15.5 | kernel-source | Already fixed |
| openSUSE Leap 15.5 | kernel-source-azure | Already fixed |
| openSUSE Leap 15.5 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.6 | kernel-default | Already fixed |
| openSUSE Leap 15.6 | kernel-source | Already fixed |
| openSUSE Leap 15.6 | kernel-source-azure | Already fixed |
| openSUSE Leap 15.6 | kernel-source-rt | Already fixed |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-default | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | kernel-source-azure | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Already fixed |
| 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 | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source-azure | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Already fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Already fixed |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source-azure | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Already fixed |
| 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 | Not affected |
| SUSE CaaS Platform Toolchain 3 | kernel-source | Not affected |
| SUSE Enterprise Storage 6 | kernel-source | Not affected |
| SUSE Enterprise Storage 7 | kernel-source | Not affected |
| SUSE Enterprise Storage 7.1 | kernel-default | Not affected |
| SUSE Enterprise Storage 7.1 | kernel-source | Not affected |
| 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 | Not affected |
| SUSE Linux Enterprise Desktop 15 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Micro 5.0 | kernel-default | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Real Time 12 SP5 | kernel-source-rt | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Already fixed |
| 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 | Not affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | kernel-default | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-default | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Not affected |
| SUSE Manager Proxy 4.0 | kernel-source | Not affected |
| SUSE Manager Proxy 4.1 | kernel-source | Not affected |
| SUSE Manager Proxy 4.2 | kernel-source | Not affected |
| SUSE Manager Retail Branch Server 4.0 | kernel-source | Not affected |
| SUSE Manager Retail Branch Server 4.1 | kernel-source | Not affected |
| SUSE Manager Retail Branch Server 4.2 | kernel-source | Not affected |
| SUSE Manager Server 4.0 | kernel-source | Not affected |
| SUSE Manager Server 4.1 | kernel-source | Not affected |
| SUSE Manager Server 4.2 | kernel-source | Not affected |
| SUSE OpenStack Cloud 8 | kernel-source | Not affected |
| SUSE OpenStack Cloud 9 | kernel-default | Not affected |
| SUSE OpenStack Cloud 9 | kernel-source | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | kernel-source | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | kernel-default | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source | Not affected |
| SUSE Real Time Module 15 SP3 | kernel-source-rt | Not affected |
| SUSE Real Time Module 15 SP4 | kernel-source-rt | Already fixed |
| openSUSE Leap 15.3 | kernel-source | Not affected |
| openSUSE Leap 15.3 | kernel-source-rt | Not affected |
| openSUSE Leap 15.4 | kernel-source | Already fixed |
| openSUSE Leap 15.4 | kernel-source-azure | Unsupported |
| openSUSE Leap 15.4 | kernel-source-rt | Already fixed |
SUSE Timeline for this CVE
CVE page created: Tue May 21 18:01:02 2024CVE page last modified: Fri Dec 20 23:48:30 2024