{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38221", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.995Z", "datePublished": "2025-07-04T13:37:37.248Z", "dateUpdated": "2025-07-04T13:37:37.248Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-04T13:37:37.248Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix out of bounds punch offset\n\nPunching a hole with a start offset that exceeds max_end is not\npermitted and will result in a negative length in the\ntruncate_inode_partial_folio() function while truncating the page cache,\npotentially leading to undesirable consequences.\n\nA simple reproducer:\n\n truncate -s 9895604649994 /mnt/foo\n xfs_io -c \"pwrite 8796093022208 4096\" /mnt/foo\n xfs_io -c \"fpunch 8796093022213 25769803777\" /mnt/foo\n\n kernel BUG at include/linux/highmem.h:275!\n Oops: invalid opcode: 0000 [#1] SMP PTI\n CPU: 3 UID: 0 PID: 710 Comm: xfs_io Not tainted 6.15.0-rc3\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\n RIP: 0010:zero_user_segments.constprop.0+0xd7/0x110\n RSP: 0018:ffffc90001cf3b38 EFLAGS: 00010287\n RAX: 0000000000000005 RBX: ffffea0001485e40 RCX: 0000000000001000\n RDX: 000000000040b000 RSI: 0000000000000005 RDI: 000000000040b000\n RBP: 000000000040affb R08: ffff888000000000 R09: ffffea0000000000\n R10: 0000000000000003 R11: 00000000fffc7fc5 R12: 0000000000000005\n R13: 000000000040affb R14: ffffea0001485e40 R15: ffff888031cd3000\n FS: 00007f4f63d0b780(0000) GS:ffff8880d337d000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000001ae0b038 CR3: 00000000536aa000 CR4: 00000000000006f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n <TASK>\n truncate_inode_partial_folio+0x3dd/0x620\n truncate_inode_pages_range+0x226/0x720\n ? bdev_getblk+0x52/0x3e0\n ? ext4_get_group_desc+0x78/0x150\n ? crc32c_arch+0xfd/0x180\n ? __ext4_get_inode_loc+0x18c/0x840\n ? ext4_inode_csum+0x117/0x160\n ? jbd2_journal_dirty_metadata+0x61/0x390\n ? __ext4_handle_dirty_metadata+0xa0/0x2b0\n ? kmem_cache_free+0x90/0x5a0\n ? jbd2_journal_stop+0x1d5/0x550\n ? __ext4_journal_stop+0x49/0x100\n truncate_pagecache_range+0x50/0x80\n ext4_truncate_page_cache_block_range+0x57/0x3a0\n ext4_punch_hole+0x1fe/0x670\n ext4_fallocate+0x792/0x17d0\n ? __count_memcg_events+0x175/0x2a0\n vfs_fallocate+0x121/0x560\n ksys_fallocate+0x51/0xc0\n __x64_sys_fallocate+0x24/0x40\n x64_sys_call+0x18d2/0x4170\n do_syscall_64+0xa7/0x220\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix this by filtering out cases where the punching start offset exceeds\nmax_end."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ext4/inode.c"], "versions": [{"version": "982bf37da09d078570650b691d9084f43805a5de", "lessThan": "28b62cb58fd014338f5004170f2e3a35bf0af238", "status": "affected", "versionType": "git"}, {"version": "982bf37da09d078570650b691d9084f43805a5de", "lessThan": "b5e58bcd79625423487fa3ecba8e8411b5396327", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ext4/inode.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.4", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.15.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.16-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/28b62cb58fd014338f5004170f2e3a35bf0af238"}, {"url": "https://git.kernel.org/stable/c/b5e58bcd79625423487fa3ecba8e8411b5396327"}], "title": "ext4: fix out of bounds punch offset", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix out of bounds punch offset\n\nPunching a hole with a start offset that exceeds max_end is not\npermitted and will result in a negative length in the\ntruncate_inode_partial_folio() function while truncating the page cache,\npotentially leading to undesirable consequences.\n\nA simple reproducer:\n\n truncate -s 9895604649994 /mnt/foo\n xfs_io -c \"pwrite 8796093022208 4096\" /mnt/foo\n xfs_io -c \"fpunch 8796093022213 25769803777\" /mnt/foo\n\n kernel BUG at include/linux/highmem.h:275!\n Oops: invalid opcode: 0000 [#1] SMP PTI\n CPU: 3 UID: 0 PID: 710 Comm: xfs_io Not tainted 6.15.0-rc3\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\n RIP: 0010:zero_user_segments.constprop.0+0xd7/0x110\n RSP: 0018:ffffc90001cf3b38 EFLAGS: 00010287\n RAX: 0000000000000005 RBX: ffffea0001485e40 RCX: 0000000000001000\n RDX: 000000000040b000 RSI: 0000000000000005 RDI: 000000000040b000\n RBP: 000000000040affb R08: ffff888000000000 R09: ffffea0000000000\n R10: 0000000000000003 R11: 00000000fffc7fc5 R12: 0000000000000005\n R13: 000000000040affb R14: ffffea0001485e40 R15: ffff888031cd3000\n FS: 00007f4f63d0b780(0000) GS:ffff8880d337d000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000001ae0b038 CR3: 00000000536aa000 CR4: 00000000000006f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n <TASK>\n truncate_inode_partial_folio+0x3dd/0x620\n truncate_inode_pages_range+0x226/0x720\n ? bdev_getblk+0x52/0x3e0\n ? ext4_get_group_desc+0x78/0x150\n ? crc32c_arch+0xfd/0x180\n ? __ext4_get_inode_loc+0x18c/0x840\n ? ext4_inode_csum+0x117/0x160\n ? jbd2_journal_dirty_metadata+0x61/0x390\n ? __ext4_handle_dirty_metadata+0xa0/0x2b0\n ? kmem_cache_free+0x90/0x5a0\n ? jbd2_journal_stop+0x1d5/0x550\n ? __ext4_journal_stop+0x49/0x100\n truncate_pagecache_range+0x50/0x80\n ext4_truncate_page_cache_block_range+0x57/0x3a0\n ext4_punch_hole+0x1fe/0x670\n ext4_fallocate+0x792/0x17d0\n ? __count_memcg_events+0x175/0x2a0\n vfs_fallocate+0x121/0x560\n ksys_fallocate+0x51/0xc0\n __x64_sys_fallocate+0x24/0x40\n x64_sys_call+0x18d2/0x4170\n do_syscall_64+0xa7/0x220\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix this by filtering out cases where the punching start offset exceeds\nmax_end."}], "id": "CVE-2025-38221", "lastModified": "2025-07-04T14:15:30.723", "metrics": {}, "published": "2025-07-04T14:15:30.723", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28b62cb58fd014338f5004170f2e3a35bf0af238"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b5e58bcd79625423487fa3ecba8e8411b5396327"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ext4: fix out of bounds punch offset", "id": "2376412", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376412"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\next4: fix out of bounds punch offset\nPunching a hole with a start offset that exceeds max_end is not\npermitted and will result in a negative length in the\ntruncate_inode_partial_folio() function while truncating the page cache,\npotentially leading to undesirable consequences.\nA simple reproducer:\ntruncate -s 9895604649994 /mnt/foo\nxfs_io -c \"pwrite 8796093022208 4096\" /mnt/foo\nxfs_io -c \"fpunch 8796093022213 25769803777\" /mnt/foo\nkernel BUG at include/linux/highmem.h:275!\nOops: invalid opcode: 0000 [#1] SMP PTI\nCPU: 3 UID: 0 PID: 710 Comm: xfs_io Not tainted 6.15.0-rc3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\nRIP: 0010:zero_user_segments.constprop.0+0xd7/0x110\nRSP: 0018:ffffc90001cf3b38 EFLAGS: 00010287\nRAX: 0000000000000005 RBX: ffffea0001485e40 RCX: 0000000000001000\nRDX: 000000000040b000 RSI: 0000000000000005 RDI: 000000000040b000\nRBP: 000000000040affb R08: ffff888000000000 R09: ffffea0000000000\nR10: 0000000000000003 R11: 00000000fffc7fc5 R12: 0000000000000005\nR13: 000000000040affb R14: ffffea0001485e40 R15: ffff888031cd3000\nFS: 00007f4f63d0b780(0000) GS:ffff8880d337d000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000001ae0b038 CR3: 00000000536aa000 CR4: 00000000000006f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n<TASK>\ntruncate_inode_partial_folio+0x3dd/0x620\ntruncate_inode_pages_range+0x226/0x720\n? bdev_getblk+0x52/0x3e0\n? ext4_get_group_desc+0x78/0x150\n? crc32c_arch+0xfd/0x180\n? __ext4_get_inode_loc+0x18c/0x840\n? ext4_inode_csum+0x117/0x160\n? jbd2_journal_dirty_metadata+0x61/0x390\n? __ext4_handle_dirty_metadata+0xa0/0x2b0\n? kmem_cache_free+0x90/0x5a0\n? jbd2_journal_stop+0x1d5/0x550\n? __ext4_journal_stop+0x49/0x100\ntruncate_pagecache_range+0x50/0x80\next4_truncate_page_cache_block_range+0x57/0x3a0\next4_punch_hole+0x1fe/0x670\next4_fallocate+0x792/0x17d0\n? __count_memcg_events+0x175/0x2a0\nvfs_fallocate+0x121/0x560\nksys_fallocate+0x51/0xc0\n__x64_sys_fallocate+0x24/0x40\nx64_sys_call+0x18d2/0x4170\ndo_syscall_64+0xa7/0x220\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\nFix this by filtering out cases where the punching start offset exceeds\nmax_end."], "name": "CVE-2025-38221", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38221\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38221\nhttps://lore.kernel.org/linux-cve-announce/2025070425-CVE-2025-38221-f152@gregkh/T"], "threat_severity": "Moderate"}