{"id":"DEBIAN-CVE-2024-53155","details":"In the Linux kernel, the following vulnerability has been resolved:  ocfs2: fix uninitialized value in ocfs2_file_read_iter()  Syzbot has reported the following KMSAN splat:  BUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80  ocfs2_file_read_iter+0x9a4/0xf80  __io_read+0x8d4/0x20f0  io_read+0x3e/0xf0  io_issue_sqe+0x42b/0x22c0  io_wq_submit_work+0xaf9/0xdc0  io_worker_handle_work+0xd13/0x2110  io_wq_worker+0x447/0x1410  ret_from_fork+0x6f/0x90  ret_from_fork_asm+0x1a/0x30  Uninit was created at:  __alloc_pages_noprof+0x9a7/0xe00  alloc_pages_mpol_noprof+0x299/0x990  alloc_pages_noprof+0x1bf/0x1e0  allocate_slab+0x33a/0x1250  ___slab_alloc+0x12ef/0x35e0  kmem_cache_alloc_bulk_noprof+0x486/0x1330  __io_alloc_req_refill+0x84/0x560  io_submit_sqes+0x172f/0x2f30  __se_sys_io_uring_enter+0x406/0x41c0  __x64_sys_io_uring_enter+0x11f/0x1a0  x64_sys_call+0x2b54/0x3ba0  do_syscall_64+0xcd/0x1e0  entry_SYSCALL_64_after_hwframe+0x77/0x7f  Since an instance of 'struct kiocb' may be passed from the block layer with 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()' and use it from where 'ocfs2_dio_end_io()' might take care, i.e. in 'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'.","modified":"2026-09-15T09:03:16.140533793Z","published":"2024-12-24T12:15:23.700Z","upstream":["CVE-2024-53155"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-53155"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.123-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-53155.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-53155.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-53155.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}