{"id":"CVE-2025-71107","state":"PUBLISHED","title":"f2fs: ensure node page reads complete before f2fs_put_super() finishes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: ensure node page reads complete before f2fs_put_super() finishes\n\nXfstests generic/335, generic/336 sometimes crash with the following message:\n\nF2FS-fs (dm-0): detect filesystem reference count leak during umount, type: 9, count: 1\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/super.c:1939!\nOops: invalid opcode: 0000 [#1] SMP NOPTI\nCPU: 1 UID: 0 PID: 609351 Comm: umount Tainted: G        W           6.17.0-rc5-xfstests-g9dd1835ecda5 #1 PREEMPT(none)\nTainted: [W]=WARN\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:f2fs_put_super+0x3b3/0x3c0\nCall Trace:\n <TASK>\n generic_shutdown_super+0x7e/0x190\n kill_block_super+0x1a/0x40\n kill_f2fs_super+0x9d/0x190\n deactivate_locked_super+0x30/0xb0\n cleanup_mnt+0xba/0x150\n task_work_run+0x5c/0xa0\n exit_to_user_mode_loop+0xb7/0xc0\n do_syscall_64+0x1ae/0x1c0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n </TASK>\n---[ end trace 0000000000000000 ]---\n\nIt appears that sometimes it is possible that f2fs_put_super() is called before\nall node page reads are completed.\nAdding a call to f2fs_wait_on_all_pages() for F2FS_RD_NODE fixes the problem.","publishedAt":"2026-01-14T15:05:55.878Z","updatedAt":"2026-05-23T16:03:12.935Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"c3031cf2b61f1508662fc95ef9ad505cb0882a5f","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"3b15d5f12935e9e25f9a571e680716bc9ee61025","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"0b36fae23621a09e772c8adf918b9011158f8511","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"297baa4aa263ff8f5b3d246ee16a660d76aa82c4","versionType":"git"},{"version":"0e2577074b459bba7f4016f4d725ede37d48bb22","status":"affected","versionType":"git"},{"version":"6.4.16","status":"affected","lessThan":"6.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.3","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]}],"references":["https://git.kernel.org/stable/c/c3031cf2b61f1508662fc95ef9ad505cb0882a5f","https://git.kernel.org/stable/c/3b15d5f12935e9e25f9a571e680716bc9ee61025","https://git.kernel.org/stable/c/0b36fae23621a09e772c8adf918b9011158f8511","https://git.kernel.org/stable/c/297baa4aa263ff8f5b3d246ee16a660d76aa82c4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/71xxx/CVE-2025-71107.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-71107","state":"PUBLISHED","datePublished":"2026-01-14T15:05:55.878Z","dateUpdated":"2026-05-23T16:03:12.935Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:30:19.652Z"},"containers":{"cna":{"title":"f2fs: ensure node page reads complete before f2fs_put_super() finishes","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: ensure node page reads complete before f2fs_put_super() finishes\n\nXfstests generic/335, generic/336 sometimes crash with the following message:\n\nF2FS-fs (dm-0): detect filesystem reference count leak during umount, type: 9, count: 1\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/super.c:1939!\nOops: invalid opcode: 0000 [#1] SMP NOPTI\nCPU: 1 UID: 0 PID: 609351 Comm: umount Tainted: G        W           6.17.0-rc5-xfstests-g9dd1835ecda5 #1 PREEMPT(none)\nTainted: [W]=WARN\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:f2fs_put_super+0x3b3/0x3c0\nCall Trace:\n <TASK>\n generic_shutdown_super+0x7e/0x190\n kill_block_super+0x1a/0x40\n kill_f2fs_super+0x9d/0x190\n deactivate_locked_super+0x30/0xb0\n cleanup_mnt+0xba/0x150\n task_work_run+0x5c/0xa0\n exit_to_user_mode_loop+0xb7/0xc0\n do_syscall_64+0x1ae/0x1c0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n </TASK>\n---[ end trace 0000000000000000 ]---\n\nIt appears that sometimes it is possible that f2fs_put_super() is called before\nall node page reads are completed.\nAdding a call to f2fs_wait_on_all_pages() for F2FS_RD_NODE fixes the problem."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"c3031cf2b61f1508662fc95ef9ad505cb0882a5f","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"3b15d5f12935e9e25f9a571e680716bc9ee61025","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"0b36fae23621a09e772c8adf918b9011158f8511","versionType":"git"},{"version":"20872584b8c0b006c007da9588a272c9e28d2e18","status":"affected","lessThan":"297baa4aa263ff8f5b3d246ee16a660d76aa82c4","versionType":"git"},{"version":"0e2577074b459bba7f4016f4d725ede37d48bb22","status":"affected","versionType":"git"},{"version":"6.4.16","status":"affected","lessThan":"6.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.3","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/f2fs/super.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c3031cf2b61f1508662fc95ef9ad505cb0882a5f"},{"url":"https://git.kernel.org/stable/c/3b15d5f12935e9e25f9a571e680716bc9ee61025"},{"url":"https://git.kernel.org/stable/c/0b36fae23621a09e772c8adf918b9011158f8511"},{"url":"https://git.kernel.org/stable/c/297baa4aa263ff8f5b3d246ee16a660d76aa82c4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:03:12.935Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.12.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.18.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.16"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}