{"id":"DEBIAN-CVE-2024-41050","details":"In the Linux kernel, the following vulnerability has been resolved:  cachefiles: cyclic allocation of msg_id to avoid reuse  Reusing the msg_id after a maliciously completed reopen request may cause a read request to remain unprocessed and result in a hung, as shown below:         t1       |      t2       |      t3 ------------------------------------------------- cachefiles_ondemand_select_req  cachefiles_ondemand_object_is_close(A)  cachefiles_ondemand_set_object_reopening(A)  queue_work(fscache_object_wq, &info-\u003ework)                 ondemand_object_worker                  cachefiles_ondemand_init_object(A)                   cachefiles_ondemand_send_req(OPEN)                     // get msg_id 6                     wait_for_completion(&req_A-\u003edone) cachefiles_ondemand_daemon_read  // read msg_id 6 req_A  cachefiles_ondemand_get_fd  copy_to_user                                 // Malicious completion msg_id 6                                 copen 6,-1                                 cachefiles_ondemand_copen                                  complete(&req_A-\u003edone)                                  // will not set the object to close                                  // because ondemand_id && fd is valid.                  // ondemand_object_worker() is done                 // but the object is still reopening.                                  // new open req_B                                 cachefiles_ondemand_init_object(B)                                  cachefiles_ondemand_send_req(OPEN)                                  // reuse msg_id 6 process_open_req  copen 6,A.size  // The expected failed copen was executed successfully  Expect copen to fail, and when it does, it closes fd, which sets the object to close, and then close triggers reopen again. However, due to msg_id reuse resulting in a successful copen, the anonymous fd is not closed until the daemon exits. Therefore read requests waiting for reopen to complete may trigger hung task.  To avoid this issue, allocate the msg_id cyclically to avoid reusing the msg_id for a very short duration of time.","modified":"2026-09-15T09:02:57.392080133Z","published":"2024-07-29T15:15:13.260Z","upstream":["CVE-2024-41050"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-41050"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.106-1"}]}],"versions":["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-2024-41050.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.10-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-41050.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.10-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-41050.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:H/A:H"}]}