[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2023-52451":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T14:53:31.930Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":19,"related":20,"reserved_at":9,"published_at":21,"modified_at":22,"state":9,"summary":23,"references_raw":25,"kevs":32,"epss":9,"epss_history":33,"metrics":34,"affected":41},"DEBIAN-CVE-2023-52451","In the Linux kernel, the following vulnerability has been resolved:  powerpc/pseries/memhp: Fix access beyond end of drmem array  dlpar_memory_remove_by_index() may access beyond the bounds of the drmem lmb array when the LMB lookup fails to match an entry with the given DRC index. When the search fails, the cursor is left pointing to &drmem_info->lmbs[drmem_info->n_lmbs], which is one element past the last valid entry in the array. The debug message at the end of the function then dereferences this pointer:          pr_debug(\"Failed to hot-remove memory at %llx\\n\",                  lmb->base_addr);  This was found by inspection and confirmed with KASAN:    pseries-hotplug-mem: Attempting to hot-remove LMB, drc index 1234   ==================================================================   BUG: KASAN: slab-out-of-bounds in dlpar_memory+0x298/0x1658   Read of size 8 at addr c000000364e97fd0 by task bash/949    dump_stack_lvl+0xa4/0xfc (unreliable)   print_report+0x214/0x63c   kasan_report+0x140/0x2e0   __asan_load8+0xa8/0xe0   dlpar_memory+0x298/0x1658   handle_dlpar_errorlog+0x130/0x1d0   dlpar_store+0x18c/0x3e0   kobj_attr_store+0x68/0xa0   sysfs_kf_write+0xc4/0x110   kernfs_fop_write_iter+0x26c/0x390   vfs_write+0x2d4/0x4e0   ksys_write+0xac/0x1a0   system_call_exception+0x268/0x530   system_call_vectored_common+0x15c/0x2ec    Allocated by task 1:    kasan_save_stack+0x48/0x80    kasan_set_track+0x34/0x50    kasan_save_alloc_info+0x34/0x50    __kasan_kmalloc+0xd0/0x120    __kmalloc+0x8c/0x320    kmalloc_array.constprop.0+0x48/0x5c    drmem_init+0x2a0/0x41c    do_one_initcall+0xe0/0x5c0    kernel_init_freeable+0x4ec/0x5a0    kernel_init+0x30/0x1e0    ret_from_kernel_user_thread+0x14/0x1c    The buggy address belongs to the object at c000000364e80000    which belongs to the cache kmalloc-128k of size 131072   The buggy address is located 0 bytes to the right of    allocated 98256-byte region [c000000364e80000, c000000364e97fd0)    ==================================================================   pseries-hotplug-mem: Failed to hot-remove memory at 0  Log failed lookups with a separate message and dereference the cursor only when it points to a valid entry.",null,[],[],[],[14],{"_key":15},"CVE-2023-52451",[17],{"_key":18},"DLA-3841-1",[],[],"2024-02-22T17:15:08.777Z","2026-04-28T20:26:39.774730Z",{"cisa_kev":24,"cisa_ransomware":24,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[26],{"url":27,"sources":28,"tags":30},"https://security-tracker.debian.org/tracker/CVE-2023-52451",[29],"osv_debian",[31],"Advisory",[],[],[35],{"source":29,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":36,"cvss_v4_0":9},{"baseScore":37,"baseSeverity":9,"vectorString":38,"impactScore":39,"exploitabilityScore":40},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[42],{"ecosystem":43,"name":44,"vendor":45,"product":44,"cpe_part":9,"purl_type":46,"purl_namespace":45,"purl_name":44,"source":9,"versions":47},"Debian","linux","debian","deb",[48,54,57,60],{"version":49,"is_range":50,"range_type":51,"version_start":9,"version_start_type":9,"version_end":52,"version_end_type":53,"fixed_in":9},"lt5_10_209_1",true,"ecosystem","5.10.209-1","excluding",{"version":55,"is_range":50,"range_type":51,"version_start":9,"version_start_type":9,"version_end":56,"version_end_type":53,"fixed_in":9},"lt6_1_76_1","6.1.76-1",{"version":58,"is_range":50,"range_type":51,"version_start":9,"version_start_type":9,"version_end":59,"version_end_type":53,"fixed_in":9},"lt6_6_15_1","6.6.15-1",{"version":58,"is_range":50,"range_type":51,"version_start":9,"version_start_type":9,"version_end":59,"version_end_type":53,"fixed_in":9}]