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Ubuntu: (Multiple Advisories) (CVE-2024-40995): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-40995): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/12/2024
Created
09/13/2024
Added
09/12/2024
Modified
10/02/2024

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc() syzbot found hanging tasks waiting on rtnl_lock [1] A reproducer is available in the syzbot bug. When a request to add multiple actions with the same index is sent, the second request will block forever on the first request. This holds rtnl_lock, and causes tasks to hang. Return -EAGAIN to prevent infinite looping, while keeping documented behavior. [1] INFO: task kworker/1:0:5088 blocked for more than 143 seconds. Not tainted 6.9.0-rc4-syzkaller-00173-g3cdb45594619 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:23744 pid:5088 tgid:5088 ppid:2 flags:0x00004000 Workqueue: events_power_efficient reg_check_chans_work Call Trace: <TASK> context_switch kernel/sched/core.c:5409 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6746 __schedule_loop kernel/sched/core.c:6823 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6838 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 wiphy_lock include/net/cfg80211.h:5953 [inline] reg_leave_invalid_chans net/wireless/reg.c:2466 [inline] reg_check_chans_work+0x10a/0x10e0 net/wireless/reg.c:2481

Solution(s)

  • ubuntu-upgrade-linux-image-5-15-0-1035-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-15-0-1052-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1062-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1062-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1064-intel-iotg
  • ubuntu-upgrade-linux-image-5-15-0-1064-nvidia
  • ubuntu-upgrade-linux-image-5-15-0-1064-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-1066-gke
  • ubuntu-upgrade-linux-image-5-15-0-1066-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1067-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1068-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1069-aws
  • ubuntu-upgrade-linux-image-5-15-0-1072-azure
  • ubuntu-upgrade-linux-image-5-15-0-1072-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-121-generic
  • ubuntu-upgrade-linux-image-5-15-0-121-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-121-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-121-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-121-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-4-0-1043-iot
  • ubuntu-upgrade-linux-image-5-4-0-1051-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-4-0-1079-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1092-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1099-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1116-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1120-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1131-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1132-aws
  • ubuntu-upgrade-linux-image-5-4-0-1136-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1137-azure
  • ubuntu-upgrade-linux-image-5-4-0-195-generic
  • ubuntu-upgrade-linux-image-5-4-0-195-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-195-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1010-gke
  • ubuntu-upgrade-linux-image-6-8-0-1011-raspi
  • ubuntu-upgrade-linux-image-6-8-0-1012-ibm
  • ubuntu-upgrade-linux-image-6-8-0-1012-oem
  • ubuntu-upgrade-linux-image-6-8-0-1012-oracle
  • ubuntu-upgrade-linux-image-6-8-0-1012-oracle-64k
  • ubuntu-upgrade-linux-image-6-8-0-1013-nvidia
  • ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-64k
  • ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-1014-azure
  • ubuntu-upgrade-linux-image-6-8-0-1014-azure-fde
  • ubuntu-upgrade-linux-image-6-8-0-1014-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1015-aws
  • ubuntu-upgrade-linux-image-6-8-0-44-generic
  • ubuntu-upgrade-linux-image-6-8-0-44-generic-64k
  • ubuntu-upgrade-linux-image-6-8-0-44-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-44-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-45-generic
  • ubuntu-upgrade-linux-image-6-8-0-45-generic-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-cvm
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-fde-lts-22-04
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-bluefield
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-gcp-lts-22-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-classic
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-ibm-lts-24-04
  • ubuntu-upgrade-linux-image-intel
  • ubuntu-upgrade-linux-image-intel-iotg
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-22-04
  • ubuntu-upgrade-linux-image-nvidia
  • ubuntu-upgrade-linux-image-nvidia-6-8
  • ubuntu-upgrade-linux-image-nvidia-64k
  • ubuntu-upgrade-linux-image-nvidia-64k-6-8
  • ubuntu-upgrade-linux-image-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oem-22-04
  • ubuntu-upgrade-linux-image-oem-22-04a
  • ubuntu-upgrade-linux-image-oem-22-04b
  • ubuntu-upgrade-linux-image-oem-22-04c
  • ubuntu-upgrade-linux-image-oem-22-04d
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-oracle-lts-22-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-raspi2-hwe-18-04
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-hwe-22-04
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04
  • ubuntu-upgrade-linux-image-xilinx-zynqmp

References

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