{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-48628 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-48628 is a medium-severity vulnerability in Linux kernel, published on 2 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-48628 and fix it if it is affected.\n\nWhat it is: CVE-2022-48628 is a medium-severity vulnerability in Linux kernel, published on 2 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-48628 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-48628/ (Markdown: https://insights.sbomify.com/CVE-2022-48628/index.md)","id":"CVE-2022-48628","markdown":"https://insights.sbomify.com/CVE-2022-48628/index.md","name":"CVE-2022-48628","record":{"aliases":["AZL-55463","DEBIAN-CVE-2022-48628","GHSA-86jx-fj9h-9hp8","ROOT-OS-DEBIAN-11-CVE-2022-48628","ROOT-OS-UBUNTU-2204-CVE-2022-48628","UBUNTU-CVE-2022-48628"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel Ceph","requires_auth":"low_privilege","summary":"A race condition during Ceph unmounting can cause skipped inodes to hold keyrings, triggering a kernel warning and potential denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nceph: drop messages from MDS when unmounting\n\nWhen unmounting all the dirty buffers will be flushed and after\nthe last osd request is finished the last reference of the i_count\nwill be released. Then it will flush the dirty cap/snap to MDSs,\nand the unmounting won't wait the possible acks, which will ihold\nthe inodes when updating the metadata locally but makes no sense\nany more, of this. This will make the evict_inodes() to skip these\ninodes.\n\nIf encrypt is enabled the kernel generate a warning when removing\nthe encrypt keys when the skipped inodes still hold the keyring:\n\nWARNING: CPU: 4 PID: 168846 at fs/crypto/keyring.c:242 fscrypt_destroy_keyring+0x7e/0xd0\nCPU: 4 PID: 168846 Comm: umount Tainted: G S  6.1.0-rc5-ceph-g72ead199864c #1\nHardware name: Supermicro SYS-5018R-WR/X10SRW-F, BIOS 2.0 12/17/2015\nRIP: 0010:fscrypt_destroy_keyring+0x7e/0xd0\nRSP: 0018:ffffc9000b277e28 EFLAGS: 00010202\nRAX: 0000000000000002 RBX: ffff88810d52ac00 RCX: ffff88810b56aa00\nRDX: 0000000080000000 RSI: ffffffff822f3a09 RDI: ffff888108f59000\nRBP: ffff8881d394fb88 R08: 0000000000000028 R09: 0000000000000000\nR10: 0000000000000001 R11: 11ff4fe6834fcd91 R12: ffff8881d394fc40\nR13: ffff888108f59000 R14: ffff8881d394f800 R15: 0000000000000000\nFS:  00007fd83f6f1080(0000) GS:ffff88885fd00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f918d417000 CR3: 000000017f89a005 CR4: 00000000003706e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\u003cTASK\u003e\ngeneric_shutdown_super+0x47/0x120\nkill_anon_super+0x14/0x30\nceph_kill_sb+0x36/0x90 [ceph]\ndeactivate_locked_super+0x29/0x60\ncleanup_mnt+0xb8/0x140\ntask_work_run+0x67/0xb0\nexit_to_user_mode_prepare+0x23d/0x240\nsyscall_exit_to_user_mode+0x25/0x60\ndo_syscall_64+0x40/0x80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fd83dc39e9b\n\nLater the kernel will crash when iput() the inodes and dereferencing\nthe \"sb-\u003es_master_keys\", which has been released by the\ngeneric_shutdown_super().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ceph: drop messages from MDS when unmounting","id":"CVE-2022-48628","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"crypto: qcom-rng - ensure buffer for generate is completely filled","id":"CVE-2022-48629"},"packages":[],"prev":{"headline":"vt: fix memory overlapping when deleting chars in the buffer","id":"CVE-2022-48627"},"products":["Linux"],"published":"2024-03-02","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-11","vendors":["Linux"]},"summary":"A race condition during Ceph unmounting can cause skipped inodes to hold keyrings, triggering a kernel warning and potential denial of service.","url":"https://insights.sbomify.com/CVE-2022-48628/"}