Security update for kernel-livepatch-MICRO-6-0_Update_9 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:20906-1 Final 1 1 2025-10-24T10:12:23Z current 2025-10-24T10:12:23Z 2025-10-24T10:12:23Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for kernel-livepatch-MICRO-6-0_Update_9 This update for kernel-livepatch-MICRO-6-0_Update_9 fixes the following issues: - CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075) - CVE-2025-38396: fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass (bsc#1247158) - CVE-2025-38471: kernel: tls: always refresh the queue when reading sock (bsc#1247452) - CVE-2025-38566: sunrpc: fix handling of server side tls alerts (bsc#1248376) - CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673) - CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not associated (bsc#1248749) - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249534) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.1-kernel-178 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ Link for SUSE-SU-2025:20906-1 https://lists.suse.com/pipermail/sle-security-updates/2025-October/023109.html E-Mail link for SUSE-SU-2025:20906-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1246075 SUSE Bug 1246075 https://bugzilla.suse.com/1247158 SUSE Bug 1247158 https://bugzilla.suse.com/1247452 SUSE Bug 1247452 https://bugzilla.suse.com/1248376 SUSE Bug 1248376 https://bugzilla.suse.com/1248673 SUSE Bug 1248673 https://bugzilla.suse.com/1248749 SUSE Bug 1248749 https://bugzilla.suse.com/1249534 SUSE Bug 1249534 https://www.suse.com/security/cve/CVE-2025-38206/ SUSE CVE CVE-2025-38206 page https://www.suse.com/security/cve/CVE-2025-38396/ SUSE CVE CVE-2025-38396 page https://www.suse.com/security/cve/CVE-2025-38471/ SUSE CVE CVE-2025-38471 page https://www.suse.com/security/cve/CVE-2025-38499/ SUSE CVE CVE-2025-38499 page https://www.suse.com/security/cve/CVE-2025-38566/ SUSE CVE CVE-2025-38566 page https://www.suse.com/security/cve/CVE-2025-38644/ SUSE CVE CVE-2025-38644 page https://www.suse.com/security/cve/CVE-2025-38678/ SUSE CVE CVE-2025-38678 page SUSE Linux Micro 6.1 kernel-livepatch-6_4_0-31-default-7-1.2 kernel-livepatch-6_4_0-31-default-7-1.2 as a component of SUSE Linux Micro 6.1 In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : free ->vol_utbl exfat_load_default_upcase_table : return error exfat_kill_sb() delayed_free() exfat_free_upcase_table() <--------- double free This patch set ->vol_util as NULL after freeing it. CVE-2025-38206 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38206.html CVE-2025-38206 https://bugzilla.suse.com/1246073 SUSE Bug 1246073 https://bugzilla.suse.com/1246075 SUSE Bug 1246075 In the Linux kernel, the following vulnerability has been resolved: fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass Export anon_inode_make_secure_inode() to allow KVM guest_memfd to create anonymous inodes with proper security context. This replaces the current pattern of calling alloc_anon_inode() followed by inode_init_security_anon() for creating security context manually. This change also fixes a security regression in secretmem where the S_PRIVATE flag was not cleared after alloc_anon_inode(), causing LSM/SELinux checks to be bypassed for secretmem file descriptors. As guest_memfd currently resides in the KVM module, we need to export this symbol for use outside the core kernel. In the future, guest_memfd might be moved to core-mm, at which point the symbols no longer would have to be exported. When/if that happens is still unclear. CVE-2025-38396 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38396.html CVE-2025-38396 https://bugzilla.suse.com/1247156 SUSE Bug 1247156 https://bugzilla.suse.com/1247158 SUSE Bug 1247158 In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x898/0x9a0 [tls] (net/tls/tls_strp.c:436 net/tls/tls_strp.c:530 net/tls/tls_strp.c:544) Read of size 4 at addr ffff888013085750 by task tls/13529 CPU: 2 UID: 0 PID: 13529 Comm: tls Not tainted 6.16.0-rc5-virtme Call Trace: kasan_report+0xca/0x100 tls_strp_check_rcv+0x898/0x9a0 [tls] tls_rx_rec_wait+0x2c9/0x8d0 [tls] tls_sw_recvmsg+0x40f/0x1aa0 [tls] inet_recvmsg+0x1c3/0x1f0 Always reload the queue, fast path is to have the record in the queue when we wake, anyway (IOW the path going down "if !strp->stm.full_len"). CVE-2025-38471 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38471.html CVE-2025-38471 https://bugzilla.suse.com/1247450 SUSE Bug 1247450 https://bugzilla.suse.com/1247452 SUSE Bug 1247452 In the Linux kernel, the following vulnerability has been resolved: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns What we want is to verify there is that clone won't expose something hidden by a mount we wouldn't be able to undo. "Wouldn't be able to undo" may be a result of MNT_LOCKED on a child, but it may also come from lacking admin rights in the userns of the namespace mount belongs to. clone_private_mnt() checks the former, but not the latter. There's a number of rather confusing CAP_SYS_ADMIN checks in various userns during the mount, especially with the new mount API; they serve different purposes and in case of clone_private_mnt() they usually, but not always end up covering the missing check mentioned above. CVE-2025-38499 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38499.html CVE-2025-38499 https://bugzilla.suse.com/1247976 SUSE Bug 1247976 https://bugzilla.suse.com/1248673 SUSE Bug 1248673 In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix handling of server side tls alerts Scott Mayhew discovered a security exploit in NFS over TLS in tls_alert_recv() due to its assumption it can read data from the msg iterator's kvec.. kTLS implementation splits TLS non-data record payload between the control message buffer (which includes the type such as TLS aler or TLS cipher change) and the rest of the payload (say TLS alert's level/description) which goes into the msg payload buffer. This patch proposes to rework how control messages are setup and used by sock_recvmsg(). If no control message structure is setup, kTLS layer will read and process TLS data record types. As soon as it encounters a TLS control message, it would return an error. At that point, NFS can setup a kvec backed msg buffer and read in the control message such as a TLS alert. Msg iterator can advance the kvec pointer as a part of the copy process thus we need to revert the iterator before calling into the tls_alert_recv. CVE-2025-38566 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38566.html CVE-2025-38566 https://bugzilla.suse.com/1248374 SUSE Bug 1248374 https://bugzilla.suse.com/1248376 SUSE Bug 1248376 In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject TDLS operations when station is not associated syzbot triggered a WARN in ieee80211_tdls_oper() by sending NL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT, before association completed and without prior TDLS setup. This left internal state like sdata->u.mgd.tdls_peer uninitialized, leading to a WARN_ON() in code paths that assumed it was valid. Reject the operation early if not in station mode or not associated. CVE-2025-38644 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38644.html CVE-2025-38644 https://bugzilla.suse.com/1248748 SUSE Bug 1248748 https://bugzilla.suse.com/1248749 SUSE Bug 1248749 In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject duplicate device on updates A chain/flowtable update with duplicated devices in the same batch is possible. Unfortunately, netdev event path only removes the first device that is found, leaving unregistered the hook of the duplicated device. Check if a duplicated device exists in the transaction batch, bail out with EEXIST in such case. WARNING is hit when unregistering the hook: [49042.221275] WARNING: CPU: 4 PID: 8425 at net/netfilter/core.c:340 nf_hook_entry_head+0xaa/0x150 [49042.221375] CPU: 4 UID: 0 PID: 8425 Comm: nft Tainted: G S 6.16.0+ #170 PREEMPT(full) [...] [49042.221382] RIP: 0010:nf_hook_entry_head+0xaa/0x150 CVE-2025-38678 SUSE Linux Micro 6.1:kernel-livepatch-6_4_0-31-default-7-1.2 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520906-1/ https://www.suse.com/security/cve/CVE-2025-38678.html CVE-2025-38678 https://bugzilla.suse.com/1249126 SUSE Bug 1249126 https://bugzilla.suse.com/1249534 SUSE Bug 1249534