{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-48919 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-48919 is a high-severity use after free vulnerability in Linux kernel, published on 22 Aug 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2022-48919 and fix it if it is affected.\n\nWhat it is: CVE-2022-48919 is a high-severity use after free vulnerability in Linux kernel, published on 22 Aug 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2022-48919 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-2022-48919/ (Markdown: https://insights.sbomify.com/CVE-2022-48919/index.md)","id":"CVE-2022-48919","markdown":"https://insights.sbomify.com/CVE-2022-48919/index.md","name":"CVE-2022-48919","record":{"aliases":["DEBIAN-CVE-2022-48919","GHSA-j96q-j829-h7g8","UBUNTU-CVE-2022-48919"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A double free race condition in the Linux kernel CIFS module can cause a use-after-free error, leading to system crashes or denial of service.","user_interaction":"required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix double free race when mount fails in cifs_get_root()\n\nWhen cifs_get_root() fails during cifs_smb3_do_mount() we call\ndeactivate_locked_super() which eventually will call delayed_free() which\nwill free the context.\nIn this situation we should not proceed to enter the out: section in\ncifs_smb3_do_mount() and free the same resources a second time.\n\n[Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0\n\n[Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G           OE     5.17.0-rc3+ #4\n[Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019\n[Thu Feb 10 12:59:06 2022] Call Trace:\n[Thu Feb 10 12:59:06 2022]  \u003cIRQ\u003e\n[Thu Feb 10 12:59:06 2022]  dump_stack_lvl+0x5d/0x78\n[Thu Feb 10 12:59:06 2022]  print_address_description.constprop.0+0x24/0x150\n[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  kasan_report.cold+0x7d/0x117\n[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  __asan_load8+0x86/0xa0\n[Thu Feb 10 12:59:06 2022]  rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  rcu_core+0x547/0xca0\n[Thu Feb 10 12:59:06 2022]  ? call_rcu+0x3c0/0x3c0\n[Thu Feb 10 12:59:06 2022]  ? __this_cpu_preempt_check+0x13/0x20\n[Thu Feb 10 12:59:06 2022]  ? lock_is_held_type+0xea/0x140\n[Thu Feb 10 12:59:06 2022]  rcu_core_si+0xe/0x10\n[Thu Feb 10 12:59:06 2022]  __do_softirq+0x1d4/0x67b\n[Thu Feb 10 12:59:06 2022]  __irq_exit_rcu+0x100/0x150\n[Thu Feb 10 12:59:06 2022]  irq_exit_rcu+0xe/0x30\n[Thu Feb 10 12:59:06 2022]  sysvec_hyperv_stimer0+0x9d/0xc0\n...\n[Thu Feb 10 12:59:07 2022] Freed by task 58179:\n[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022]  kasan_set_track+0x25/0x30\n[Thu Feb 10 12:59:07 2022]  kasan_set_free_info+0x24/0x40\n[Thu Feb 10 12:59:07 2022]  ____kasan_slab_free+0x137/0x170\n[Thu Feb 10 12:59:07 2022]  __kasan_slab_free+0x12/0x20\n[Thu Feb 10 12:59:07 2022]  slab_free_freelist_hook+0xb3/0x1d0\n[Thu Feb 10 12:59:07 2022]  kfree+0xcd/0x520\n[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0x149/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n[Thu Feb 10 12:59:07 2022] Last potentially related work creation:\n[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022]  __kasan_record_aux_stack+0xb6/0xc0\n[Thu Feb 10 12:59:07 2022]  kasan_record_aux_stack_noalloc+0xb/0x10\n[Thu Feb 10 12:59:07 2022]  call_rcu+0x76/0x3c0\n[Thu Feb 10 12:59:07 2022]  cifs_umount+0xce/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  cifs_kill_sb+0xc8/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  deactivate_locked_super+0x5d/0xd0\n[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0xab9/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae","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":"cifs: fix double free race when mount fails in cifs_get_root()","id":"CVE-2022-48919","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"btrfs: get rid of warning on transaction commit when using flushoncommit","id":"CVE-2022-48920"},"packages":[],"prev":{"headline":"iwlwifi: mvm: check debugfs_dir ptr before use","id":"CVE-2022-48918"},"products":["Linux"],"published":"2024-08-22","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A double free race condition in the Linux kernel CIFS module can cause a use-after-free error, leading to system crashes or denial of service.","url":"https://insights.sbomify.com/CVE-2022-48919/"}