CVE-2021-47299
Publication date 21 May 2024
Last updated 4 August 2025
Ubuntu priority
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---
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| linux-hwe | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | |
| 16.04 LTS xenial |
Not affected
|
|
| linux-hwe-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-hwe-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-hwe-5.11 | |
| linux-hwe-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-hwe-5.13 | |
| linux-hwe-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-hwe-5.15 | |
| linux-hwe-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-hwe-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-hwe-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-hwe-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-hwe-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-hwe-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-hwe-edge | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-hwe-5.4 | |
| 16.04 LTS xenial | Ignored superseded by linux-hwe | |
| linux-lts-xenial | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 14.04 LTS trusty |
Not affected
|
|
| linux-kvm | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| linux-allwinner-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored end of kernel support | |
| 20.04 LTS focal | Not in release | |
| linux-aws-5.0 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-aws-5.3 | |
| linux | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
|
| linux-aws-5.3 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-aws-5.4 | |
| linux-aws-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-aws-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-aws-5.11 | |
| linux-aws-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-aws-5.13 | |
| linux-aws-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-aws-5.15 | |
| linux-aws-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-aws-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-aws-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-aws-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-aws-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-aws-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-aws-hwe | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 16.04 LTS xenial |
Not affected
|
|
| linux-azure | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | |
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
|
| linux-azure-4.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-azure-5.3 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-azure-5.4 | |
| linux-azure-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-azure-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-azure-5.11 | |
| linux-azure-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-azure-5.13 | |
| linux-azure-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-azure-5.15 | |
| linux-azure-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-azure-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-azure-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-azure-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-azure-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-azure-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-azure-fde | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Ignored superseded by linux-azure-fde-5.15 | |
| linux-azure-fde-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-azure-fde-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-azure-fde-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-azure-fde-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored replaced by linux-azure-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-bluefield | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-azure-edge | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-azure-5.3 | |
| linux-fips | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| linux-aws-fips | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| linux-azure-fips | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| linux-gcp-fips | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| linux-gcp | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic | Ignored superseded by linux-gcp-5.3 | |
| 16.04 LTS xenial |
Not affected
|
|
| linux-gcp-4.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-gcp-5.3 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-gcp-5.4 | |
| linux-gcp-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-gcp-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-gcp-5.11 | |
| linux-gcp-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-gcp-5.13 | |
| linux-gcp-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-gcp-5.15 | |
| linux-gcp-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-gcp-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-gcp-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-gcp-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-gcp-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-gcp-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-gke | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Ignored end of kernel support | |
| linux-gke-4.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-gke-5.0 | |
| linux-gke-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored end of kernel support | |
| linux-gke-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored end of kernel support | |
| linux-gkeop | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| linux-gkeop-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored end of kernel support | |
| linux-gkeop-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-ibm | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| linux-ibm-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-ibm-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-intel-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored end of kernel support | |
| linux-intel-iotg | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-intel-iotg-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-iot | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-laptop | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| linux-lowlatency | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-lowlatency-hwe-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-lowlatency-hwe-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.2 | |
| 20.04 LTS focal | Not in release | |
| linux-lowlatency-hwe-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-lowlatency-hwe-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-lowlatency-hwe-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-nvidia | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-nvidia-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-nvidia-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-nvidia-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-oracle-5.0 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-oracle-5.3 | |
| linux-oracle-5.3 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored superseded by linux-oracle-5.4 | |
| linux-oracle-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-oracle-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oracle-5.11 | |
| linux-oracle-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oracle-5.13 | |
| linux-oracle-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oracle-5.15 | |
| linux-oracle-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-oracle-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-oem | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Ignored replaced by linux-hwe-5.4 | |
| linux-oem-5.6 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oem-5.10 | |
| linux-oem-5.10 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oem-5.13 | |
| linux-oem-5.13 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-oem-5.14 | |
| linux-oem-5.14 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored replaced by linux-hwe-5.15 | |
| linux-oem-5.17 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | |
| 20.04 LTS focal | Not in release | |
| linux-oem-6.0 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-oem-6.1 | |
| 20.04 LTS focal | Not in release | |
| linux-oem-6.1 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-oem-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-oem-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-raspi2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored replaced by linux-raspi | |
| linux-raspi-5.4 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Not affected
|
|
| linux-riscv | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy | Ignored end of kernel support | |
| 20.04 LTS focal | Ignored superseded by linux-riscv-5.8 | |
| linux-riscv-5.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-riscv-5.11 | |
| linux-riscv-5.11 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Ignored superseded by linux-riscv-5.13 | |
| linux-riscv-5.15 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Not affected
|
|
| linux-riscv-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored end of kernel support | |
| 20.04 LTS focal | Not in release | |
| linux-riscv-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-starfive | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| linux-starfive-5.19 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored end of kernel support | |
| 20.04 LTS focal | Not in release | |
| linux-starfive-6.2 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Ignored superseded by linux-starfive-6.5 | |
| 20.04 LTS focal | Not in release | |
| linux-starfive-6.5 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| linux-xilinx-zynqmp | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| linux-oem-6.8 | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| linux-aws | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
|
| linux-oracle | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| linux-raspi | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| linux-intel | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| linux-nvidia-6.8 | 24.04 LTS noble | Not in release |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| linux-nvidia-lowlatency | 24.04 LTS noble |
Not affected
|
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2021-47299
- https://git.kernel.org/linus/5acc7d3e8d342858405fbbc671221f676b547ce7 (5.14-rc3)
- https://git.kernel.org/stable/c/ca9ba1de8f09976b45ccc8e655c51c6201992139
- https://git.kernel.org/stable/c/a7537dc73e69ad9c0b67ad24ad3ebee954ed0af6
- https://git.kernel.org/stable/c/5acc7d3e8d342858405fbbc671221f676b547ce7