[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2024-50279":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":23,"related":24,"reserved_at":9,"published_at":25,"modified_at":26,"state":9,"summary":27,"references_raw":29,"kevs":36,"epss":9,"epss_history":37,"metrics":38,"affected":45},"DEBIAN-CVE-2024-50279","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.",null,[],[],[],[14],{"_key":15},"CVE-2024-50279",[17,19,21],{"_key":18},"DLA-4008-1",{"_key":20},"DLA-4075-1",{"_key":22},"DSA-5818-1",[],[],"2024-11-19T02:16:30.210Z","2026-04-28T20:28:55.023211Z",{"cisa_kev":28,"cisa_ransomware":28,"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,[30],{"url":31,"sources":32,"tags":34},"https://security-tracker.debian.org/tracker/CVE-2024-50279",[33],"osv_debian",[35],"Advisory",[],[],[39],{"source":33,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":40,"cvss_v4_0":9},{"baseScore":41,"baseSeverity":9,"vectorString":42,"impactScore":43,"exploitabilityScore":44},7.1,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",8.7,4.6,[46,65],{"ecosystem":47,"name":48,"vendor":49,"product":48,"cpe_part":9,"purl_type":50,"purl_namespace":49,"purl_name":48,"source":9,"versions":51},"Debian","linux","debian","deb",[52,58,61,64],{"version":53,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":56,"version_end_type":57,"fixed_in":9},"lt5_10_234_1",true,"ecosystem","5.10.234-1","excluding",{"version":59,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":60,"version_end_type":57,"fixed_in":9},"lt6_1_119_1","6.1.119-1",{"version":62,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":63,"version_end_type":57,"fixed_in":9},"lt6_11_9_1","6.11.9-1",{"version":62,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":63,"version_end_type":57,"fixed_in":9},{"ecosystem":47,"name":66,"vendor":49,"product":66,"cpe_part":9,"purl_type":50,"purl_namespace":49,"purl_name":66,"source":9,"versions":67},"linux-6.1",[68],{"version":69,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":70,"version_end_type":57,"fixed_in":9},"lt6_1_119_1~deb11u1","6.1.119-1~deb11u1"]