Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP4) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:02125-1 Final 1 1 2025-06-26T09:03:57Z current 2025-06-26T09:03:57Z 2025-06-26T09:03:57Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP4) This update for the Linux Kernel 5.14.21-150400_24_125 fixes several issues. The following security issues were fixed: - CVE-2024-56601: net: inet: do not leave a dangling sk pointer in inet_create() (bsc#1235231). - CVE-2024-50127: net: sched: fix use-after-free in taprio_change() (bsc#1232908). - CVE-2024-50279: dm cache: fix out-of-bounds access to the dirty bitset when resizing (bsc#1233708). - CVE-2024-50301: security/keys: fix slab-out-of-bounds in key_task_permission (bsc#1233680). - CVE-2024-56605: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() (bsc#1235062). - CVE-2024-50125: Bluetooth: SCO: Fix UAF on sco_sock_timeout (bsc#1232929). - CVE-2024-40937: gve: Clear napi->skb before dev_kfree_skb_any() (bsc#1227903). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-2125,SUSE-SLE-Module-Live-Patching-15-SP4-2025-2125 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-202502125-1/ Link for SUSE-SU-2025:02125-1 https://lists.suse.com/pipermail/sle-updates/2025-June/040487.html E-Mail link for SUSE-SU-2025:02125-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1227903 SUSE Bug 1227903 https://bugzilla.suse.com/1232908 SUSE Bug 1232908 https://bugzilla.suse.com/1232929 SUSE Bug 1232929 https://bugzilla.suse.com/1233680 SUSE Bug 1233680 https://bugzilla.suse.com/1233708 SUSE Bug 1233708 https://bugzilla.suse.com/1235062 SUSE Bug 1235062 https://bugzilla.suse.com/1235231 SUSE Bug 1235231 https://www.suse.com/security/cve/CVE-2024-40937/ SUSE CVE CVE-2024-40937 page https://www.suse.com/security/cve/CVE-2024-50125/ SUSE CVE CVE-2024-50125 page https://www.suse.com/security/cve/CVE-2024-50127/ SUSE CVE CVE-2024-50127 page https://www.suse.com/security/cve/CVE-2024-50279/ SUSE CVE CVE-2024-50279 page https://www.suse.com/security/cve/CVE-2024-50301/ SUSE CVE CVE-2024-50301 page https://www.suse.com/security/cve/CVE-2024-56601/ SUSE CVE CVE-2024-56601 page https://www.suse.com/security/cve/CVE-2024-56605/ SUSE CVE CVE-2024-56605 page SUSE Linux Enterprise Live Patching 15 SP4 kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP4 In the Linux kernel, the following vulnerability has been resolved: gve: Clear napi->skb before dev_kfree_skb_any() gve_rx_free_skb incorrectly leaves napi->skb referencing an skb after it is freed with dev_kfree_skb_any(). This can result in a subsequent call to napi_get_frags returning a dangling pointer. Fix this by clearing napi->skb before the skb is freed. CVE-2024-40937 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-40937.html CVE-2024-40937 https://bugzilla.suse.com/1227836 SUSE Bug 1227836 https://bugzilla.suse.com/1227903 SUSE Bug 1227903 In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix UAF on sco_sock_timeout conn->sk maybe have been unlinked/freed while waiting for sco_conn_lock so this checks if the conn->sk is still valid by checking if it part of sco_sk_list. CVE-2024-50125 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-50125.html CVE-2024-50125 https://bugzilla.suse.com/1232928 SUSE Bug 1232928 https://bugzilla.suse.com/1232929 SUSE Bug 1232929 In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing. CVE-2024-50127 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-50127.html CVE-2024-50127 https://bugzilla.suse.com/1232907 SUSE Bug 1232907 https://bugzilla.suse.com/1232908 SUSE Bug 1232908 In the Linux kernel, the following vulnerability has been resolved: dm cache: fix out-of-bounds access to the dirty bitset when resizing dm-cache checks the dirty bits of the cache blocks to be dropped when shrinking the fast device, but an index bug in bitset iteration causes out-of-bounds access. Reproduce steps: 1. create a cache device of 1024 cache blocks (128 bytes dirty bitset) dmsetup create cmeta --table "0 8192 linear /dev/sdc 0" dmsetup create cdata --table "0 131072 linear /dev/sdc 8192" dmsetup create corig --table "0 524288 linear /dev/sdc 262144" dd if=/dev/zero of=/dev/mapper/cmeta bs=4k count=1 oflag=direct dmsetup create cache --table "0 524288 cache /dev/mapper/cmeta \ /dev/mapper/cdata /dev/mapper/corig 128 2 metadata2 writethrough smq 0" 2. shrink the fast device to 512 cache blocks, triggering out-of-bounds access to the dirty bitset (offset 0x80) dmsetup suspend cache dmsetup reload cdata --table "0 65536 linear /dev/sdc 8192" dmsetup resume cdata dmsetup resume cache KASAN reports: BUG: KASAN: vmalloc-out-of-bounds in cache_preresume+0x269/0x7b0 Read of size 8 at addr ffffc900000f3080 by task dmsetup/131 (...snip...) The buggy address belongs to the virtual mapping at [ffffc900000f3000, ffffc900000f5000) created by: cache_ctr+0x176a/0x35f0 (...snip...) Memory state around the buggy address: ffffc900000f2f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900000f3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc900000f3080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc900000f3100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc900000f3180: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 Fix by making the index post-incremented. CVE-2024-50279 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-50279.html CVE-2024-50279 https://bugzilla.suse.com/1233468 SUSE Bug 1233468 https://bugzilla.suse.com/1233708 SUSE Bug 1233708 In the Linux kernel, the following vulnerability has been resolved: security/keys: fix slab-out-of-bounds in key_task_permission KASAN reports an out of bounds read: BUG: KASAN: slab-out-of-bounds in __kuid_val include/linux/uidgid.h:36 BUG: KASAN: slab-out-of-bounds in uid_eq include/linux/uidgid.h:63 [inline] BUG: KASAN: slab-out-of-bounds in key_task_permission+0x394/0x410 security/keys/permission.c:54 Read of size 4 at addr ffff88813c3ab618 by task stress-ng/4362 CPU: 2 PID: 4362 Comm: stress-ng Not tainted 5.10.0-14930-gafbffd6c3ede #15 Call Trace: __dump_stack lib/dump_stack.c:82 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:123 print_address_description.constprop.0+0x19/0x170 mm/kasan/report.c:400 __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560 kasan_report+0x3a/0x50 mm/kasan/report.c:585 __kuid_val include/linux/uidgid.h:36 [inline] uid_eq include/linux/uidgid.h:63 [inline] key_task_permission+0x394/0x410 security/keys/permission.c:54 search_nested_keyrings+0x90e/0xe90 security/keys/keyring.c:793 This issue was also reported by syzbot. It can be reproduced by following these steps(more details [1]): 1. Obtain more than 32 inputs that have similar hashes, which ends with the pattern '0xxxxxxxe6'. 2. Reboot and add the keys obtained in step 1. The reproducer demonstrates how this issue happened: 1. In the search_nested_keyrings function, when it iterates through the slots in a node(below tag ascend_to_node), if the slot pointer is meta and node->back_pointer != NULL(it means a root), it will proceed to descend_to_node. However, there is an exception. If node is the root, and one of the slots points to a shortcut, it will be treated as a keyring. 2. Whether the ptr is keyring decided by keyring_ptr_is_keyring function. However, KEYRING_PTR_SUBTYPE is 0x2UL, the same as ASSOC_ARRAY_PTR_SUBTYPE_MASK. 3. When 32 keys with the similar hashes are added to the tree, the ROOT has keys with hashes that are not similar (e.g. slot 0) and it splits NODE A without using a shortcut. When NODE A is filled with keys that all hashes are xxe6, the keys are similar, NODE A will split with a shortcut. Finally, it forms the tree as shown below, where slot 6 points to a shortcut. NODE A +------>+---+ ROOT | | 0 | xxe6 +---+ | +---+ xxxx | 0 | shortcut : : xxe6 +---+ | +---+ xxe6 : : | | | xxe6 +---+ | +---+ | 6 |---+ : : xxe6 +---+ +---+ xxe6 : : | f | xxe6 +---+ +---+ xxe6 | f | +---+ 4. As mentioned above, If a slot(slot 6) of the root points to a shortcut, it may be mistakenly transferred to a key*, leading to a read out-of-bounds read. To fix this issue, one should jump to descend_to_node if the ptr is a shortcut, regardless of whether the node is root or not. [1] https://lore.kernel.org/linux-kernel/1cfa878e-8c7b-4570-8606-21daf5e13ce7@huaweicloud.com/ [jarkko: tweaked the commit message a bit to have an appropriate closes tag.] CVE-2024-50301 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-50301.html CVE-2024-50301 https://bugzilla.suse.com/1233490 SUSE Bug 1233490 https://bugzilla.suse.com/1233680 SUSE Bug 1233680 In the Linux kernel, the following vulnerability has been resolved: net: inet: do not leave a dangling sk pointer in inet_create() sock_init_data() attaches the allocated sk object to the provided sock object. If inet_create() fails later, the sk object is freed, but the sock object retains the dangling pointer, which may create use-after-free later. Clear the sk pointer in the sock object on error. CVE-2024-56601 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-56601.html CVE-2024-56601 https://bugzilla.suse.com/1235230 SUSE Bug 1235230 https://bugzilla.suse.com/1235231 SUSE Bug 1235231 In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code. CVE-2024-56605 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_125-default-14-150400.2.1 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-202502125-1/ https://www.suse.com/security/cve/CVE-2024-56605.html CVE-2024-56605 https://bugzilla.suse.com/1234853 SUSE Bug 1234853 https://bugzilla.suse.com/1235061 SUSE Bug 1235061 https://bugzilla.suse.com/1235062 SUSE Bug 1235062