[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2022-48631":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":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2022-48631","In the Linux kernel, the following vulnerability has been resolved:  ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0  When walking through an inode extents, the ext4_ext_binsearch_idx() function assumes that the extent header has been previously validated.  However, there are no checks that verify that the number of entries (eh->eh_entries) is non-zero when depth is > 0.  And this will lead to problems because the EXT_FIRST_INDEX() and EXT_LAST_INDEX() will return garbage and result in this:  [  135.245946] ------------[ cut here ]------------ [  135.247579] kernel BUG at fs/ext4/extents.c:2258! [  135.249045] invalid opcode: 0000 [#1] PREEMPT SMP [  135.250320] CPU: 2 PID: 238 Comm: tmp118 Not tainted 5.19.0-rc8+ #4 [  135.252067] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b-rebuilt.opensuse.org 04/01/2014 [  135.255065] RIP: 0010:ext4_ext_map_blocks+0xc20/0xcb0 [  135.256475] Code: [  135.261433] RSP: 0018:ffffc900005939f8 EFLAGS: 00010246 [  135.262847] RAX: 0000000000000024 RBX: ffffc90000593b70 RCX: 0000000000000023 [  135.264765] RDX: ffff8880038e5f10 RSI: 0000000000000003 RDI: ffff8880046e922c [  135.266670] RBP: ffff8880046e9348 R08: 0000000000000001 R09: ffff888002ca580c [  135.268576] R10: 0000000000002602 R11: 0000000000000000 R12: 0000000000000024 [  135.270477] R13: 0000000000000000 R14: 0000000000000024 R15: 0000000000000000 [  135.272394] FS:  00007fdabdc56740(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000 [  135.274510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [  135.276075] CR2: 00007ffc26bd4f00 CR3: 0000000006261004 CR4: 0000000000170ea0 [  135.277952] Call Trace: [  135.278635]  \u003CTASK> [  135.279247]  ? preempt_count_add+0x6d/0xa0 [  135.280358]  ? percpu_counter_add_batch+0x55/0xb0 [  135.281612]  ? _raw_read_unlock+0x18/0x30 [  135.282704]  ext4_map_blocks+0x294/0x5a0 [  135.283745]  ? xa_load+0x6f/0xa0 [  135.284562]  ext4_mpage_readpages+0x3d6/0x770 [  135.285646]  read_pages+0x67/0x1d0 [  135.286492]  ? folio_add_lru+0x51/0x80 [  135.287441]  page_cache_ra_unbounded+0x124/0x170 [  135.288510]  filemap_get_pages+0x23d/0x5a0 [  135.289457]  ? path_openat+0xa72/0xdd0 [  135.290332]  filemap_read+0xbf/0x300 [  135.291158]  ? _raw_spin_lock_irqsave+0x17/0x40 [  135.292192]  new_sync_read+0x103/0x170 [  135.293014]  vfs_read+0x15d/0x180 [  135.293745]  ksys_read+0xa1/0xe0 [  135.294461]  do_syscall_64+0x3c/0x80 [  135.295284]  entry_SYSCALL_64_after_hwframe+0x46/0xb0  This patch simply adds an extra check in __ext4_ext_check(), verifying that eh_entries is not 0 when eh_depth is > 0.",null,[],[],[],[14],{"_key":15},"CVE-2022-48631",[],[],[],"2024-04-28T13:15:06.450Z","2026-04-28T20:24:51.462844Z",{"cisa_kev":22,"cisa_ransomware":22,"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,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2022-48631",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52,55,56],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt5_10_148_1",true,"ecosystem","5.10.148-1","excluding",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},"lt6_0_2_1","6.0.2-1",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9}]