[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2025-21931":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T20:55:29.923Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":21,"related":22,"reserved_at":9,"published_at":23,"modified_at":24,"state":9,"summary":25,"references_raw":27,"kevs":34,"epss":9,"epss_history":35,"metrics":36,"affected":43},"DEBIAN-CVE-2025-21931","In the Linux kernel, the following vulnerability has been resolved:  hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio  Commit b15c87263a69 (\"hwpoison, memory_hotplug: allow hwpoisoned pages to be offlined) add page poison checks in do_migrate_range in order to make offline hwpoisoned page possible by introducing isolate_lru_page and try_to_unmap for hwpoisoned page.  However folio lock must be held before calling try_to_unmap.  Add it to fix this problem.  Warning will be produced if folio is not locked during unmap:    ------------[ cut here ]------------   kernel BUG at ./include/linux/swapops.h:400!   Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP   Modules linked in:   CPU: 4 UID: 0 PID: 411 Comm: bash Tainted: G        W          6.13.0-rc1-00016-g3c434c7ee82a-dirty #41   Tainted: [W]=WARN   Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015   pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)   pc : try_to_unmap_one+0xb08/0xd3c   lr : try_to_unmap_one+0x3dc/0xd3c   Call trace:    try_to_unmap_one+0xb08/0xd3c (P)    try_to_unmap_one+0x3dc/0xd3c (L)    rmap_walk_anon+0xdc/0x1f8    rmap_walk+0x3c/0x58    try_to_unmap+0x88/0x90    unmap_poisoned_folio+0x30/0xa8    do_migrate_range+0x4a0/0x568    offline_pages+0x5a4/0x670    memory_block_action+0x17c/0x374    memory_subsys_offline+0x3c/0x78    device_offline+0xa4/0xd0    state_store+0x8c/0xf0    dev_attr_store+0x18/0x2c    sysfs_kf_write+0x44/0x54    kernfs_fop_write_iter+0x118/0x1a8    vfs_write+0x3a8/0x4bc    ksys_write+0x6c/0xf8    __arm64_sys_write+0x1c/0x28    invoke_syscall+0x44/0x100    el0_svc_common.constprop.0+0x40/0xe0    do_el0_svc+0x1c/0x28    el0_svc+0x30/0xd0    el0t_64_sync_handler+0xc8/0xcc    el0t_64_sync+0x198/0x19c   Code: f9407be0 b5fff320 d4210000 17ffff97 (d4210000)   ---[ end trace 0000000000000000 ]---",null,[],[],[],[14],{"_key":15},"CVE-2025-21931",[17,19],{"_key":18},"DLA-4271-1",{"_key":20},"DSA-5925-1",[],[],"2025-04-01T16:15:23.933Z","2026-04-28T20:29:36.993727Z",{"cisa_kev":26,"cisa_ransomware":26,"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,[28],{"url":29,"sources":30,"tags":32},"https://security-tracker.debian.org/tracker/CVE-2025-21931",[31],"osv_debian",[33],"Advisory",[],[],[37],{"source":31,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":38,"cvss_v4_0":9},{"baseScore":39,"baseSeverity":9,"vectorString":40,"impactScore":41,"exploitabilityScore":42},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[44,62],{"ecosystem":45,"name":46,"vendor":47,"product":46,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":46,"source":9,"versions":49},"Debian","linux","debian","deb",[50,54,58,61],{"version":51,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":55,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":56,"version_end_type":57,"fixed_in":9},"lt6_1_140_1","6.1.140-1","excluding",{"version":59,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":60,"version_end_type":57,"fixed_in":9},"lt6_12_19_1","6.12.19-1",{"version":59,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":60,"version_end_type":57,"fixed_in":9},{"ecosystem":45,"name":63,"vendor":47,"product":63,"cpe_part":9,"purl_type":48,"purl_namespace":47,"purl_name":63,"source":9,"versions":64},"linux-6.1",[65],{"version":66,"is_range":52,"range_type":53,"version_start":9,"version_start_type":9,"version_end":67,"version_end_type":57,"fixed_in":9},"lt6_1_140_1~deb11u1","6.1.140-1~deb11u1"]