{ "cveId": "CVE-2025-38230", "url": "https://patchblox.com/security/cve/CVE-2025-38230", "summary": "CVE-2025-38230 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2025-38230, released July 4, 2025. It is not reported as exploited. Patch Radar priority: High.", "title": "jfs: validate AG parameters in dbMount() to prevent crashes", "description": "In the Linux kernel, the following vulnerability has been resolved: jfs: validate AG parameters in dbMount() to prevent crashes Validate db_agheight, db_agwidth, and db_agstart in dbMount to catch corrupted metadata early and avoid undefined behavior in dbAllocAG. Limits are derived from L2LPERCTL, LPERCTL/MAXAG, and CTLTREESIZE: - agheight: 0 to L2LPERCTL/2 (0 to 5) ensures shift (L2LPERCTL - 2*agheight) \u003E= 0. - agwidth: 1 to min(LPERCTL/MAXAG, 2^(L2LPERCTL - 2*agheight)) ensures agperlev \u003E= 1. - Ranges: 1-8 (agheight 0-3), 1-4 (agheight 4), 1 (agheight 5). - LPERCTL/MAXAG = 1024/128 = 8 limits leaves per AG; 2^(10 - 2*agheight) prevents division to 0. - agstart: 0 to CTLTREESIZE-1 - agwidth*(MAXAG-1) keeps ti within stree (size 1365). - Ranges: 0-1237 (agwidth 1), 0-348 (agwidth 8). UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:1400:9 shift exponent -335544310 is negative CPU: 0 UID: 0 PID: 5822 Comm: syz-executor130 Not tainted 6.14.0-rc5-syzkaller #0 Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: \u003CTASK\u003E __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl\u002B0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds\u002B0x3c8/0x420 lib/ubsan.c:468 dbAllocAG\u002B0x1087/0x10b0 fs/jfs/jfs_dmap.c:1400 dbDiscardAG\u002B0x352/0xa20 fs/jfs/jfs_dmap.c:1613 jfs_ioc_trim\u002B0x45a/0x6b0 fs/jfs/jfs_discard.c:105 jfs_ioctl\u002B0x2cd/0x3e0 fs/jfs/ioctl.c:131 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl\u002B0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64\u002B0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe\u002B0x77/0x7f Found by Linux Verification Center (linuxtesting.org) with Syzkaller.", "published": "2025-07-04T14:15:32Z", "severity": "high", "cvss": 7.8, "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "epss": 0.00196, "epssPercentile": 0.09362, "priority": "High", "priorityTier": 3, "exploited": false, "vendorExploited": false, "disclosed": false, "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38230", "fixes": [ { "platform": "linux", "product": "kernel-uek", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-container", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-container-debug", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-debug", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-debug-devel", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-devel", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-doc", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "kernel-uek-tools", "release": "ol 8", "fixedVersion": "0:5.4.17-2136.348.3.el7uek", "fix": "ELSA-2025-20663", "url": "https://patchblox.com/security/fix/linux/elsa-2025-20663", "released": "2025-10-11T00:00:00Z" }, { "platform": "linux", "product": "linux", "release": "Debian 12.15 (bookworm)", "fixedVersion": "6.1.147-1", "fix": "DEBIAN-CVE-2025-38230", "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-38230", "released": "2025-07-04T14:15:32Z" }, { "platform": "linux", "product": "linux", "release": "Debian 13.5 (trixie)", "fixedVersion": "6.12.37-1", "fix": "DEBIAN-CVE-2025-38230", "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-38230", "released": "2025-07-04T14:15:32Z" }, { "platform": "linux", "product": "linux", "release": "Debian 14", "fixedVersion": "6.12.37-1", "fix": "DEBIAN-CVE-2025-38230", "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-38230", "released": "2025-07-04T14:15:32Z" } ], "noFixYet": [], "dataAsOf": "2026-11-09T01:18:40Z", "attribution": { "text": "Data: Patchblox Patch Radar", "url": "https://patchblox.com/security/patch-radar", "terms": "https://patchblox.com/security/patch-radar/use-the-data" } }