{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos7els/vex/2025/cve-2025-39691-els_os-centos7els.json" } ], "tracking": { "current_release_date": "2026-02-24T10:49:45Z", "generator": { "date": "2026-02-24T10:49:45Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2025-39691-ELS_OS-CENTOS7ELS", "initial_release_date": "2025-09-05T18:15:00Z", "revision_history": [ { "date": "2025-09-05T18:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-02-24T10:49:45Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on 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"kernel-devel-0:3.10.0-1160.144.1.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.x86_64" }, "product_reference": "kernel-devel-0:3.10.0-1160.144.1.el7.x86_64", "relates_to_product_reference": "CentOS-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-39691", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/buffer: fix use-after-free when call bh_read() helper\n\nThere's issue as follows:\nBUG: KASAN: stack-out-of-bounds in end_buffer_read_sync+0xe3/0x110\nRead of size 8 at addr ffffc9000168f7f8 by task swapper/3/0\nCPU: 3 UID: 0 PID: 0 Comm: swapper/3 Not tainted 6.16.0-862.14.0.6.x86_64\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996)\nCall Trace:\n \n dump_stack_lvl+0x55/0x70\n print_address_description.constprop.0+0x2c/0x390\n print_report+0xb4/0x270\n kasan_report+0xb8/0xf0\n end_buffer_read_sync+0xe3/0x110\n end_bio_bh_io_sync+0x56/0x80\n blk_update_request+0x30a/0x720\n scsi_end_request+0x51/0x2b0\n scsi_io_completion+0xe3/0x480\n ? scsi_device_unbusy+0x11e/0x160\n blk_complete_reqs+0x7b/0x90\n handle_softirqs+0xef/0x370\n irq_exit_rcu+0xa5/0xd0\n sysvec_apic_timer_interrupt+0x6e/0x90\n \n\n Above issue happens when do ntfs3 filesystem mount, issue may happens\n as follows:\n mount IRQ\nntfs_fill_super\n read_cache_page\n do_read_cache_folio\n filemap_read_folio\n mpage_read_folio\n\t do_mpage_readpage\n\t ntfs_get_block_vbo\n\t bh_read\n\t submit_bh\n\t wait_on_buffer(bh);\n\t blk_complete_reqs\n\t\t\t\t scsi_io_completion\n\t\t\t\t scsi_end_request\n\t\t\t\t blk_update_request\n\t\t\t\t end_bio_bh_io_sync\n\t\t\t\t\t end_buffer_read_sync\n\t\t\t\t\t __end_buffer_read_notouch\n\t\t\t\t\t unlock_buffer\n\n wait_on_buffer(bh);--> return will return to caller\n\n\t\t\t\t\t put_bh\n\t\t\t\t\t --> trigger stack-out-of-bounds\nIn the mpage_read_folio() function, the stack variable 'map_bh' is\npassed to ntfs_get_block_vbo(). Once unlock_buffer() unlocks and\nwait_on_buffer() returns to continue processing, the stack variable\nis likely to be reclaimed. Consequently, during the end_buffer_read_sync()\nprocess, calling put_bh() may result in stack overrun.\n\nIf the bh is not allocated on the stack, it belongs to a folio. Freeing\na buffer head which belongs to a folio is done by drop_buffers() which\nwill fail to free buffers which are still locked. So it is safe to call\nput_bh() before __end_buffer_read_notouch().", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64" ], "known_affected": [ "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-39691" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/03b40bf5d0389ca23ae6857ee25789f0e0b47ce8", "url": "https://git.kernel.org/stable/c/03b40bf5d0389ca23ae6857ee25789f0e0b47ce8" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/042cf48ecf67f72c8b3846c7fac678f472712ff3", "url": "https://git.kernel.org/stable/c/042cf48ecf67f72c8b3846c7fac678f472712ff3" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/3169edb8945c295cf89120fc6b2c35cfe3ad4c9e", "url": "https://git.kernel.org/stable/c/3169edb8945c295cf89120fc6b2c35cfe3ad4c9e" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/70a09115da586bf662c3bae9c0c4a1b99251fad9", "url": "https://git.kernel.org/stable/c/70a09115da586bf662c3bae9c0c4a1b99251fad9" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/7375f22495e7cd1c5b3b5af9dcc4f6dffe34ce49", "url": "https://git.kernel.org/stable/c/7375f22495e7cd1c5b3b5af9dcc4f6dffe34ce49" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/90b5193edb323fefbee0e4e5bc39ed89dcc37719", "url": "https://git.kernel.org/stable/c/90b5193edb323fefbee0e4e5bc39ed89dcc37719" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c58c6b532b7b69537cfd9ef701c7e37cdcf79dc4", "url": "https://git.kernel.org/stable/c/c58c6b532b7b69537cfd9ef701c7e37cdcf79dc4" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c5aa6ba1127307ab5dc3773eaf40d73a3423841f", "url": "https://git.kernel.org/stable/c/c5aa6ba1127307ab5dc3773eaf40d73a3423841f" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html", "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html", "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html" } ], "release_date": "2025-09-05T18:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-02-16T11:33:31.735498Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1771241609", "product_ids": [ "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1771241609" }, { "category": "none_available", "details": "Affected", "product_ids": [ "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:bpftool-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-debug-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-headers-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:kernel-tools-libs-devel-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:perf-0:3.10.0-1160.144.1.el7.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.tuxcare.els2.x86_64", "CentOS-7:python-perf-0:3.10.0-1160.144.1.el7.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }