https://vulnerability.circl.lu/sightings/feed 2026-05-10T04:49:28.449004+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/10208449-d46e-411c-ad79-29f7f96d2856/export 2026-05-10T04:49:28.778268+00:00 Automation user http://cve.circl.lu/user/automation {"uuid": "10208449-d46e-411c-ad79-29f7f96d2856", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2022-49296", "type": "seen", "source": "https://t.me/DarkWebInformer_CVEAlerts/5421", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2022-49296\n\ud83d\udd25 CVSS Score: N/A\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix possible deadlock when holding Fwb to get inline_data\n\n1, mount with wsync.\n2, create a file with O_RDWR, and the request was sent to mds.0:\n\n ceph_atomic_open()-->\n ceph_mdsc_do_request(openc)\n finish_open(file, dentry, ceph_open)-->\n ceph_open()-->\n ceph_init_file()-->\n ceph_init_file_info()-->\n ceph_uninline_data()-->\n {\n ...\n if (inline_version == 1 || /* initial version, no data */\n inline_version == CEPH_INLINE_NONE)\n goto out_unlock;\n ...\n }\n\nThe inline_version will be 1, which is the initial version for the\nnew create file. And here the ci->i_inline_version will keep with 1,\nit's buggy.\n\n3, buffer write to the file immediately:\n\n ceph_write_iter()-->\n ceph_get_caps(file, need=Fw, want=Fb, ...);\n generic_perform_write()-->\n a_ops->write_begin()-->\n ceph_write_begin()-->\n netfs_write_begin()-->\n netfs_begin_read()-->\n netfs_rreq_submit_slice()-->\n netfs_read_from_server()-->\n rreq->netfs_ops->issue_read()-->\n ceph_netfs_issue_read()-->\n {\n ...\n if (ci->i_inline_version != CEPH_INLINE_NONE &&\n ceph_netfs_issue_op_inline(subreq))\n return;\n ...\n }\n ceph_put_cap_refs(ci, Fwb);\n\nThe ceph_netfs_issue_op_inline() will send a getattr(Fsr) request to\nmds.1.\n\n4, then the mds.1 will request the rd lock for CInode::filelock from\nthe auth mds.0, the mds.0 will do the CInode::filelock state transation\nfrom excl --> sync, but it need to revoke the Fxwb caps back from the\nclients.\n\nWhile the kernel client has aleady held the Fwb caps and waiting for\nthe getattr(Fsr).\n\nIt's deadlock!\n\nURL: https://tracker.ceph.com/issues/55377\n\ud83d\udccf Published: 2025-02-26T02:01:26.131Z\n\ud83d\udccf Modified: 2025-02-26T02:01:26.131Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/292b7a7275ce535a1abfa4dd0b2e586162aaae1e\n2. https://git.kernel.org/stable/c/825978fd6a0defc3c29d8a38b6cea76a0938d21e", "creation_timestamp": "2025-02-26T02:23:18.000000Z"} 2025-02-26T02:23:18+00:00 https://vulnerability.circl.lu/sighting/fa06164f-027a-4467-9e8e-930297783168/export 2026-05-10T04:49:28.776319+00:00 Alexandre Dulaunoy http://cve.circl.lu/user/adulau {"uuid": "fa06164f-027a-4467-9e8e-930297783168", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "c933734a-9be8-4142-889e-26e95c752803", "vulnerability": "CVE-2022-49296", "type": "seen", "source": "https://vulnerability.circl.lu/bundle/816dcc8e-f25a-4895-9b59-1bbd9caeccb8", "content": "", "creation_timestamp": "2025-12-03T14:14:49.267740Z"} 2025-12-03T14:14:49.267740+00:00 https://vulnerability.circl.lu/sighting/4f8dc6b3-9cd6-4830-9a9a-4815ec6ad2a0/export 2026-05-10T04:49:28.771412+00:00 Joseph Lee http://cve.circl.lu/user/syspect {"uuid": "4f8dc6b3-9cd6-4830-9a9a-4815ec6ad2a0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2022-49296", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"} 2026-03-19T00:00:00+00:00