[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2022-50673":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":14,"duplicates":53,"related":54,"reserved_at":9,"published_at":59,"modified_at":60,"state":61,"summary":62,"references_raw":66,"kevs":97,"epss":98,"epss_history":101,"metrics":373,"affected":374},"CVE-2022-50673","In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix use-after-free in ext4_orphan_cleanup\n\nI caught a issue as follows:\n==================================================================\n BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0\n Read of size 8 at addr ffff88814b13f378 by task mount/710\n\n CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370\n Call Trace:\n  \u003CTASK>\n  dump_stack_lvl+0x73/0x9f\n  print_report+0x25d/0x759\n  kasan_report+0xc0/0x120\n  __asan_load8+0x99/0x140\n  __list_add_valid+0x28/0x1a0\n  ext4_orphan_cleanup+0x564/0x9d0 [ext4]\n  __ext4_fill_super+0x48e2/0x5300 [ext4]\n  ext4_fill_super+0x19f/0x3a0 [ext4]\n  get_tree_bdev+0x27b/0x450\n  ext4_get_tree+0x19/0x30 [ext4]\n  vfs_get_tree+0x49/0x150\n  path_mount+0xaae/0x1350\n  do_mount+0xe2/0x110\n  __x64_sys_mount+0xf0/0x190\n  do_syscall_64+0x35/0x80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n  \u003C/TASK>\n [...]\n==================================================================\n\nAbove issue may happen as follows:\n-------------------------------------\next4_fill_super\n  ext4_orphan_cleanup\n   --- loop1: assume last_orphan is 12 ---\n    list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan)\n    ext4_truncate --> return 0\n      ext4_inode_attach_jinode --> return -ENOMEM\n    iput(inode) --> free inode\u003C12>\n   --- loop2: last_orphan is still 12 ---\n    list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);\n    // use inode\u003C12> and trigger UAF\n\nTo solve this issue, we need to propagate the return value of\next4_inode_attach_jinode() 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