{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-38577 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-38577 is a high-severity use after free vulnerability in Debian Debian Linux, published on 19 Aug 2025. 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-2025-38577 and fix it if it is affected.\n\nWhat it is: CVE-2025-38577 is a high-severity use after free vulnerability in Debian Debian Linux, published on 19 Aug 2025. 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-2025-38577 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2025-38577/ (Markdown: https://insights.sbomify.com/CVE-2025-38577/index.md)","id":"CVE-2025-38577","markdown":"https://insights.sbomify.com/CVE-2025-38577/index.md","name":"CVE-2025-38577","record":{"aliases":["AZL-66473","BELL-CVE-2025-38577","DEBIAN-CVE-2025-38577","GHSA-6fm3-hv4h-3737","ROOT-OS-DEBIAN-11-CVE-2025-38577","ROOT-OS-DEBIAN-12-CVE-2025-38577","ROOT-OS-DEBIAN-13-CVE-2025-38577","ROOT-OS-UBUNTU-2204-CVE-2025-38577","ROOT-OS-UBUNTU-2404-CVE-2025-38577","UBUNTU-CVE-2025-38577"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's f2fs filesystem can cause a system panic, leading to denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid panic in f2fs_evict_inode\n\nAs syzbot [1] reported as below:\n\nR10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe17473450\nR13: 00007f28b1c10854 R14: 000000000000dae5 R15: 00007ffe17474520\n \u003c/TASK\u003e\n---[ end trace 0000000000000000 ]---\n==================================================================\nBUG: KASAN: use-after-free in __list_del_entry_valid+0xa6/0x130 lib/list_debug.c:62\nRead of size 8 at addr ffff88812d962278 by task syz-executor/564\n\nCPU: 1 PID: 564 Comm: syz-executor Tainted: G        W          6.1.129-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025\nCall Trace:\n \u003cTASK\u003e\n __dump_stack+0x21/0x24 lib/dump_stack.c:88\n dump_stack_lvl+0xee/0x158 lib/dump_stack.c:106\n print_address_description+0x71/0x210 mm/kasan/report.c:316\n print_report+0x4a/0x60 mm/kasan/report.c:427\n kasan_report+0x122/0x150 mm/kasan/report.c:531\n __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:351\n __list_del_entry_valid+0xa6/0x130 lib/list_debug.c:62\n __list_del_entry include/linux/list.h:134 [inline]\n list_del_init include/linux/list.h:206 [inline]\n f2fs_inode_synced+0xf7/0x2e0 fs/f2fs/super.c:1531\n f2fs_update_inode+0x74/0x1c40 fs/f2fs/inode.c:585\n f2fs_update_inode_page+0x137/0x170 fs/f2fs/inode.c:703\n f2fs_write_inode+0x4ec/0x770 fs/f2fs/inode.c:731\n write_inode fs/fs-writeback.c:1460 [inline]\n __writeback_single_inode+0x4a0/0xab0 fs/fs-writeback.c:1677\n writeback_single_inode+0x221/0x8b0 fs/fs-writeback.c:1733\n sync_inode_metadata+0xb6/0x110 fs/fs-writeback.c:2789\n f2fs_sync_inode_meta+0x16d/0x2a0 fs/f2fs/checkpoint.c:1159\n block_operations fs/f2fs/checkpoint.c:1269 [inline]\n f2fs_write_checkpoint+0xca3/0x2100 fs/f2fs/checkpoint.c:1658\n kill_f2fs_super+0x231/0x390 fs/f2fs/super.c:4668\n deactivate_locked_super+0x98/0x100 fs/super.c:332\n deactivate_super+0xaf/0xe0 fs/super.c:363\n cleanup_mnt+0x45f/0x4e0 fs/namespace.c:1186\n __cleanup_mnt+0x19/0x20 fs/namespace.c:1193\n task_work_run+0x1c6/0x230 kernel/task_work.c:203\n exit_task_work include/linux/task_work.h:39 [inline]\n do_exit+0x9fb/0x2410 kernel/exit.c:871\n do_group_exit+0x210/0x2d0 kernel/exit.c:1021\n __do_sys_exit_group kernel/exit.c:1032 [inline]\n __se_sys_exit_group kernel/exit.c:1030 [inline]\n __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030\n x64_sys_call+0x7b4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81\n entry_SYSCALL_64_after_hwframe+0x68/0xd2\nRIP: 0033:0x7f28b1b8e169\nCode: Unable to access opcode bytes at 0x7f28b1b8e13f.\nRSP: 002b:00007ffe174710a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 00007f28b1c10879 RCX: 00007f28b1b8e169\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001\nRBP: 0000000000000002 R08: 00007ffe1746ee47 R09: 00007ffe17472360\nR10: 0000000000000009 R11: 0000000000000246 R12: 00007ffe17472360\nR13: 00007f28b1c10854 R14: 000000000000dae5 R15: 00007ffe17474520\n \u003c/TASK\u003e\n\nAllocated by task 569:\n kasan_save_stack mm/kasan/common.c:45 [inline]\n kasan_set_track+0x4b/0x70 mm/kasan/common.c:52\n kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505\n __kasan_slab_alloc+0x72/0x80 mm/kasan/common.c:328\n kasan_slab_alloc include/linux/kasan.h:201 [inline]\n slab_post_alloc_hook+0x4f/0x2c0 mm/slab.h:737\n slab_alloc_node mm/slub.c:3398 [inline]\n slab_alloc mm/slub.c:3406 [inline]\n __kmem_cache_alloc_lru mm/slub.c:3413 [inline]\n kmem_cache_alloc_lru+0x104/0x220 mm/slub.c:3429\n alloc_inode_sb include/linux/fs.h:3245 [inline]\n f2fs_alloc_inode+0x2d/0x340 fs/f2fs/super.c:1419\n alloc_inode fs/inode.c:261 [inline]\n iget_locked+0x186/0x880 fs/inode.c:1373\n f2fs_iget+0x55/0x4c60 fs/f2fs/inode.c:483\n f2fs_lookup+0x366/0xab0 fs/f2fs/namei.c:487\n __lookup_slow+0x2a3/0x3d0 fs/namei.c:1690\n lookup_slow+0x57/0x70 fs/namei.c:1707\n walk_component+0x2e6/0x410 fs/namei\n---truncated---","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":"f2fs: fix to avoid panic in f2fs_evict_inode","id":"CVE-2025-38577","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":9,"next":{"headline":"f2fs: fix to avoid UAF in f2fs_sync_inode_meta()","id":"CVE-2025-38578"},"packages":[],"prev":{"headline":"powerpc/eeh: Make EEH driver device hotplug safe","id":"CVE-2025-38576"},"products":["Linux"],"published":"2025-08-19","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's f2fs filesystem can cause a system panic, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2025-38577/"}