{ "threat_severity" : "Moderate", "public_date" : "2024-10-21T00:00:00Z", "bugzilla" : { "description" : "kernel: platform/x86: ISST: Fix the KASAN report slab-out-of-bounds bug", "id" : "2320488", "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2320488" }, "cvss3" : { "cvss3_base_score" : "7.1", "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status" : "verified" }, "cwe" : "CWE-125", "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nplatform/x86: ISST: Fix the KASAN report slab-out-of-bounds bug\nAttaching SST PCI device to VM causes \"BUG: KASAN: slab-out-of-bounds\".\nkasan report:\n[ 19.411889] ==================================================================\n[ 19.413702] BUG: KASAN: slab-out-of-bounds in _isst_if_get_pci_dev+0x3d5/0x400 [isst_if_common]\n[ 19.415634] Read of size 8 at addr ffff888829e65200 by task cpuhp/16/113\n[ 19.417368]\n[ 19.418627] CPU: 16 PID: 113 Comm: cpuhp/16 Tainted: G E 6.9.0 #10\n[ 19.420435] Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.20192059.B64.2207280713 07/28/2022\n[ 19.422687] Call Trace:\n[ 19.424091] \n[ 19.425448] dump_stack_lvl+0x5d/0x80\n[ 19.426963] ? _isst_if_get_pci_dev+0x3d5/0x400 [isst_if_common]\n[ 19.428694] print_report+0x19d/0x52e\n[ 19.430206] ? __pfx__raw_spin_lock_irqsave+0x10/0x10\n[ 19.431837] ? _isst_if_get_pci_dev+0x3d5/0x400 [isst_if_common]\n[ 19.433539] kasan_report+0xf0/0x170\n[ 19.435019] ? _isst_if_get_pci_dev+0x3d5/0x400 [isst_if_common]\n[ 19.436709] _isst_if_get_pci_dev+0x3d5/0x400 [isst_if_common]\n[ 19.438379] ? __pfx_sched_clock_cpu+0x10/0x10\n[ 19.439910] isst_if_cpu_online+0x406/0x58f [isst_if_common]\n[ 19.441573] ? __pfx_isst_if_cpu_online+0x10/0x10 [isst_if_common]\n[ 19.443263] ? ttwu_queue_wakelist+0x2c1/0x360\n[ 19.444797] cpuhp_invoke_callback+0x221/0xec0\n[ 19.446337] cpuhp_thread_fun+0x21b/0x610\n[ 19.447814] ? __pfx_cpuhp_thread_fun+0x10/0x10\n[ 19.449354] smpboot_thread_fn+0x2e7/0x6e0\n[ 19.450859] ? __pfx_smpboot_thread_fn+0x10/0x10\n[ 19.452405] kthread+0x29c/0x350\n[ 19.453817] ? __pfx_kthread+0x10/0x10\n[ 19.455253] ret_from_fork+0x31/0x70\n[ 19.456685] ? __pfx_kthread+0x10/0x10\n[ 19.458114] ret_from_fork_asm+0x1a/0x30\n[ 19.459573] \n[ 19.460853]\n[ 19.462055] Allocated by task 1198:\n[ 19.463410] kasan_save_stack+0x30/0x50\n[ 19.464788] kasan_save_track+0x14/0x30\n[ 19.466139] __kasan_kmalloc+0xaa/0xb0\n[ 19.467465] __kmalloc+0x1cd/0x470\n[ 19.468748] isst_if_cdev_register+0x1da/0x350 [isst_if_common]\n[ 19.470233] isst_if_mbox_init+0x108/0xff0 [isst_if_mbox_msr]\n[ 19.471670] do_one_initcall+0xa4/0x380\n[ 19.472903] do_init_module+0x238/0x760\n[ 19.474105] load_module+0x5239/0x6f00\n[ 19.475285] init_module_from_file+0xd1/0x130\n[ 19.476506] idempotent_init_module+0x23b/0x650\n[ 19.477725] __x64_sys_finit_module+0xbe/0x130\n[ 19.476506] idempotent_init_module+0x23b/0x650\n[ 19.477725] __x64_sys_finit_module+0xbe/0x130\n[ 19.478920] do_syscall_64+0x82/0x160\n[ 19.480036] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[ 19.481292]\n[ 19.482205] The buggy address belongs to the object at ffff888829e65000\nwhich belongs to the cache kmalloc-512 of size 512\n[ 19.484818] The buggy address is located 0 bytes to the right of\nallocated 512-byte region [ffff888829e65000, ffff888829e65200)\n[ 19.487447]\n[ 19.488328] The buggy address belongs to the physical page:\n[ 19.489569] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888829e60c00 pfn:0x829e60\n[ 19.491140] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\n[ 19.492466] anon flags: 0x57ffffc0000840(slab|head|node=1|zone=2|lastcpupid=0x1fffff)\n[ 19.493914] page_type: 0xffffffff()\n[ 19.494988] raw: 0057ffffc0000840 ffff88810004cc80 0000000000000000 0000000000000001\n[ 19.496451] raw: ffff888829e60c00 0000000080200018 00000001ffffffff 0000000000000000\n[ 19.497906] head: 0057ffffc0000840 ffff88810004cc80 0000000000000000 0000000000000001\n[ 19.499379] head: ffff888829e60c00 0000000080200018 00000001ffffffff 0000000000000000\n[ 19.500844] head: 0057ffffc0000003 ffffea0020a79801 ffffea0020a79848 00000000ffffffff\n[ 19.502316] head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000\n[ 19.503784] page dumped because: k\n---truncated---" ], "affected_release" : [ { "product_name" : "Red Hat Enterprise Linux 9", "release_date" : "2025-05-13T00:00:00Z", "advisory" : "RHSA-2025:6966", "cpe" : "cpe:/a:redhat:enterprise_linux:9", "package" : "kernel-0:5.14.0-570.12.1.el9_6" }, { "product_name" : "Red Hat Enterprise Linux 9", "release_date" : "2025-05-13T00:00:00Z", "advisory" : "RHSA-2025:6966", "cpe" : "cpe:/o:redhat:enterprise_linux:9", "package" : "kernel-0:5.14.0-570.12.1.el9_6" } ], "package_state" : [ { "product_name" : "Red Hat Enterprise Linux 6", "fix_state" : "Not affected", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:6" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Not affected", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Not affected", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Will not fix", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Will not fix", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Will not fix", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:9" } ], "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-49886\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49886\nhttps://lore.kernel.org/linux-cve-announce/2024102117-CVE-2024-49886-3477@gregkh/T" ], "name" : "CVE-2024-49886", "csaw" : false }