Security update for the Linux Kernel (Live Patch 6 for SLE 15 SP6) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:02161-1 Final 1 1 2025-06-27T16:33:31Z current 2025-06-27T16:33:31Z 2025-06-27T16:33:31Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 6 for SLE 15 SP6) This update for the Linux Kernel 6.4.0-150600_23_30 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-2024-56582: btrfs: fix use-after-free in btrfs_encoded_read_endio() (bsc#1235129). - CVE-2024-56605: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() (bsc#1235062). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-2161,SUSE-SLE-Module-Live-Patching-15-SP6-2025-2161 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-202502161-1/ Link for SUSE-SU-2025:02161-1 https://lists.suse.com/pipermail/sle-updates/2025-June/040539.html E-Mail link for SUSE-SU-2025:02161-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1235062 SUSE Bug 1235062 https://bugzilla.suse.com/1235129 SUSE Bug 1235129 https://bugzilla.suse.com/1235231 SUSE Bug 1235231 https://www.suse.com/security/cve/CVE-2024-56582/ SUSE CVE CVE-2024-56582 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 SP6 kernel-livepatch-6_4_0-150600_23_30-default-7-150600.2.2 kernel-livepatch-6_4_0-150600_23_30-default-7-150600.2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP6 In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free in btrfs_encoded_read_endio() Shinichiro reported the following use-after free that sometimes is happening in our CI system when running fstests' btrfs/284 on a TCMU runner device: BUG: KASAN: slab-use-after-free in lock_release+0x708/0x780 Read of size 8 at addr ffff888106a83f18 by task kworker/u80:6/219 CPU: 8 UID: 0 PID: 219 Comm: kworker/u80:6 Not tainted 6.12.0-rc6-kts+ #15 Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020 Workqueue: btrfs-endio btrfs_end_bio_work [btrfs] Call Trace: <TASK> dump_stack_lvl+0x6e/0xa0 ? lock_release+0x708/0x780 print_report+0x174/0x505 ? lock_release+0x708/0x780 ? __virt_addr_valid+0x224/0x410 ? lock_release+0x708/0x780 kasan_report+0xda/0x1b0 ? lock_release+0x708/0x780 ? __wake_up+0x44/0x60 lock_release+0x708/0x780 ? __pfx_lock_release+0x10/0x10 ? __pfx_do_raw_spin_lock+0x10/0x10 ? lock_is_held_type+0x9a/0x110 _raw_spin_unlock_irqrestore+0x1f/0x60 __wake_up+0x44/0x60 btrfs_encoded_read_endio+0x14b/0x190 [btrfs] btrfs_check_read_bio+0x8d9/0x1360 [btrfs] ? lock_release+0x1b0/0x780 ? trace_lock_acquire+0x12f/0x1a0 ? __pfx_btrfs_check_read_bio+0x10/0x10 [btrfs] ? process_one_work+0x7e3/0x1460 ? lock_acquire+0x31/0xc0 ? process_one_work+0x7e3/0x1460 process_one_work+0x85c/0x1460 ? __pfx_process_one_work+0x10/0x10 ? assign_work+0x16c/0x240 worker_thread+0x5e6/0xfc0 ? __pfx_worker_thread+0x10/0x10 kthread+0x2c3/0x3a0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x31/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0xaa/0xb0 btrfs_encoded_read_regular_fill_pages+0x16c/0x6d0 [btrfs] send_extent_data+0xf0f/0x24a0 [btrfs] process_extent+0x48a/0x1830 [btrfs] changed_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 do_syscall_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e Freed by task 3661: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x70 __kasan_slab_free+0x4f/0x70 kfree+0x143/0x490 btrfs_encoded_read_regular_fill_pages+0x531/0x6d0 [btrfs] send_extent_data+0xf0f/0x24a0 [btrfs] process_extent+0x48a/0x1830 [btrfs] changed_cb+0x178b/0x2ea0 [btrfs] btrfs_ioctl_send+0x3bf9/0x5c20 [btrfs] _btrfs_ioctl_send+0x117/0x330 [btrfs] btrfs_ioctl+0x184a/0x60a0 [btrfs] __x64_sys_ioctl+0x12e/0x1a0 do_syscall_64+0x95/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff888106a83f00 which belongs to the cache kmalloc-rnd-07-96 of size 96 The buggy address is located 24 bytes inside of freed 96-byte region [ffff888106a83f00, ffff888106a83f60) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888106a83800 pfn:0x106a83 flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff) page_type: f5(slab) raw: 0017ffffc0000000 ffff888100053680 ffffea0004917200 0000000000000004 raw: ffff888106a83800 0000000080200019 00000001f5000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888106a83e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff888106a83e80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff888106a83f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888106a83f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff888106a84000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Further analyzing the trace and ---truncated--- CVE-2024-56582 SUSE Linux Enterprise Live Patching 15 SP6:kernel-livepatch-6_4_0-150600_23_30-default-7-150600.2.2 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-202502161-1/ https://www.suse.com/security/cve/CVE-2024-56582.html CVE-2024-56582 https://bugzilla.suse.com/1235128 SUSE Bug 1235128 https://bugzilla.suse.com/1235129 SUSE Bug 1235129 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 SP6:kernel-livepatch-6_4_0-150600_23_30-default-7-150600.2.2 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-202502161-1/ 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 SP6:kernel-livepatch-6_4_0-150600_23_30-default-7-150600.2.2 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-202502161-1/ 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