rhsa-2024_6160
Vulnerability from csaf_redhat
Published
2024-09-03 05:36
Modified
2024-09-14 02:10
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc() (CVE-2024-40995)
* kernel: perf: Fix list corruption in perf_cgroup_switch() (CVE-2022-48799)
* kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090)
* kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()\n\nsyzbot found hanging tasks waiting on rtnl_lock [1]\n\nA reproducer is available in the syzbot bug.\n\nWhen a request to add multiple actions with the same index is sent, the\nsecond request will block forever on the first request. This holds\nrtnl_lock, and causes tasks to hang.\n\nReturn -EAGAIN to prevent infinite looping, while keeping documented\nbehavior.\n\n[1]\n\nINFO: task kworker/1:0:5088 blocked for more than 143 seconds.\nNot tainted 6.9.0-rc4-syzkaller-00173-g3cdb45594619 #0\n\"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:kworker/1:0 state:D stack:23744 pid:5088 tgid:5088 ppid:2 flags:0x00004000\nWorkqueue: events_power_efficient reg_check_chans_work\nCall Trace:\n\u003cTASK\u003e\ncontext_switch kernel/sched/core.c:5409 [inline]\n__schedule+0xf15/0x5d00 kernel/sched/core.c:6746\n__schedule_loop kernel/sched/core.c:6823 [inline]\nschedule+0xe7/0x350 kernel/sched/core.c:6838\nschedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895\n__mutex_lock_common kernel/locking/mutex.c:684 [inline]\n__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752\nwiphy_lock include/net/cfg80211.h:5953 [inline]\nreg_leave_invalid_chans net/wireless/reg.c:2466 [inline]\nreg_check_chans_work+0x10a/0x10e0 net/wireless/reg.c:2481",
"title": "Vulnerability description"
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"text": "kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()",
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"text": "A denial of service (DoS) attack was found in the mlx5 driver in the Linux kernel. A KVM guest VM using virtio-net can crash the host by sending a short packet, for example, size \u003c ETH_HLEN. The packet may traverse through vhost-net, macvtap, and vlan without any validation or drop. When this packet is presented to the mlx5 driver on the host side, the kernel panic happens since mlx5_core assumes the frame size is always \u003e= ETH_HLEN.",
"title": "Vulnerability description"
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{
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"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2299240"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2024-41090"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-41090",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41090"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024072916-CVE-2024-41090-9830@gregkh",
"url": "https://lore.kernel.org/linux-cve-announce/2024072916-CVE-2024-41090-9830@gregkh"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2024/07/24/4",
"url": "https://www.openwall.com/lists/oss-security/2024/07/24/4"
}
],
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"discovery_date": "2024-07-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2299336"
}
],
"notes": [
{
"category": "description",
"text": "A denial of service (DoS) attack was found in the mlx5 driver in the Linux kernel. A KVM guest VM using virtio-net can crash the host by sending a short packet, for example, size \u003c ETH_HLEN. The packet may traverse through vhost-net, macvtap, and vlan without any validation or drop. When this packet is presented to the mlx5 driver on the host side, the kernel panic happens since mlx5_core assumes the frame size is always \u003e= ETH_HLEN.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: virtio-net: tun: mlx5_core short frame denial of service",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2024-41091"
},
{
"category": "external",
"summary": "RHBZ#2299336",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2299336"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-41091",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41091"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-41091",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41091"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024072918-CVE-2024-41091-35b7@gregkh",
"url": "https://lore.kernel.org/linux-cve-announce/2024072918-CVE-2024-41091-35b7@gregkh"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2024/07/24/4",
"url": "https://www.openwall.com/lists/oss-security/2024/07/24/4"
}
],
"release_date": "2024-07-24T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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