SUSE-SU-2025:3683-1
Vulnerability from csaf_suse - Published: 2025-10-20 17:05 - Updated: 2025-10-20 17:05Summary
Security update for the Linux Kernel (Live Patch 51 for SLE 15 SP3)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 51 for SLE 15 SP3)
Description of the patch: This update for the Linux Kernel 5.3.18-150300_59_185 fixes several issues.
The following security issues were fixed:
- CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673).
- CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT (bsc#1245794).
- CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not associated (bsc#1248749).
- CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075).
Patchnames: SUSE-2025-3683,SUSE-SLE-Module-Live-Patching-15-SP3-2025-3683
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
7.8 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
8.4 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: Prevent creation of classes with TC_H_ROOT\n\nThe function qdisc_tree_reduce_backlog() uses TC_H_ROOT as a termination\ncondition when traversing up the qdisc tree to update parent backlog\ncounters. However, if a class is created with classid TC_H_ROOT, the\ntraversal terminates prematurely at this class instead of reaching the\nactual root qdisc, causing parent statistics to be incorrectly maintained.\nIn case of DRR, this could lead to a crash as reported by Mingi Cho.\n\nPrevent the creation of any Qdisc class with classid TC_H_ROOT\n(0xFFFFFFFF) across all qdisc types, as suggested by Jamal.",
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix double free in delayed_free\n\nThe double free could happen in the following path.\n\nexfat_create_upcase_table()\n exfat_create_upcase_table() : return error\n exfat_free_upcase_table() : free -\u003evol_utbl\n exfat_load_default_upcase_table : return error\n exfat_kill_sb()\n delayed_free()\n exfat_free_upcase_table() \u003c--------- double free\nThis patch set -\u003evol_util as NULL after freeing it.",
"title": "CVE description"
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nclone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns\n\nWhat we want is to verify there is that clone won\u0027t expose something\nhidden by a mount we wouldn\u0027t be able to undo. \"Wouldn\u0027t be able to undo\"\nmay be a result of MNT_LOCKED on a child, but it may also come from\nlacking admin rights in the userns of the namespace mount belongs to.\n\nclone_private_mnt() checks the former, but not the latter.\n\nThere\u0027s a number of rather confusing CAP_SYS_ADMIN checks in various\nuserns during the mount, especially with the new mount API; they serve\ndifferent purposes and in case of clone_private_mnt() they usually,\nbut not always end up covering the missing check mentioned above.",
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: reject TDLS operations when station is not associated\n\nsyzbot triggered a WARN in ieee80211_tdls_oper() by sending\nNL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT,\nbefore association completed and without prior TDLS setup.\n\nThis left internal state like sdata-\u003eu.mgd.tdls_peer uninitialized,\nleading to a WARN_ON() in code paths that assumed it was valid.\n\nReject the operation early if not in station mode or not associated.",
"title": "CVE description"
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"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.ppc64le",
"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.ppc64le",
"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_185-default-14-150300.2.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2025-10-20T17:05:06Z",
"details": "important"
}
],
"title": "CVE-2025-38644"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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