CVE-2026-98515: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-82rj-6xvq-73v7
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Advisory Summary

CVE-2026-98515 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98515 at a Glance

CVE Identifier CVE-2026-98515
GHSA Identifier GHSA-82rj-6xvq-73v7
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-98515

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-98515, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix double-free in nvif_vmm_dtor On failure, nouveau_cli_init() calls nouveau_cli_fini() to tear the client down. Then, nouveau_drm_open() also enters into its cleanup path and calls nouveau_cli_fini() AGAIN. nouveau_cli_fini() calls nouveau_vmm_fini(): void nouveau_vmm_fini(struct nouveau_vmm *vmm) { nouveau_svmm_fini(&vmm->svmm); nvif_vmm_dtor(&vmm->vmm); vmm->cli = NULL; } Inside nvif_vmm_dtor(), vmm->page is freed unconditionally: void nvif_vmm_dtor(struct nvif_vmm *vmm) { kfree(vmm->page); nvif_object_dtor(&vmm->object); } vmm->page is never cleared after being freed, so the second call of nvif_vmm_dtor() will cause a double-free. Found by fuzzing the nouveau driver with a modified Syzkaller: BUG: KASAN: double-free in nvif_vmm_dtor+0x31/0x50 drivers/gpu/drm/nouveau/nvif/vmm.c:194 Free of addr ffff888010fcdc30 by task syz.0.173/2567 CPU: 1 UID: 0 PID: 2567 Comm: syz.0.173 Not tainted 7.2.0 #24 PREEMPT(lazy) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x95/0xe0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcb/0x5a0 mm/kasan/report.c:482 kasan_report_invalid_free+0xaa/0xd0 mm/kasan/report.c:557 check_slab_allocation+0xe4/0x110 mm/kasan/common.c:235 kasan_slab_pre_free include/linux/kasan.h:199 [inline] slab_free_hook mm/slub.c:2622 [inline] slab_free mm/slub.c:6377 [inline] kfree+0x192/0x590 mm/slub.c:6692 nvif_vmm_dtor+0x31/0x50 drivers/gpu/drm/nouveau/nvif/vmm.c:194 nouveau_vmm_fini+0x16/0x50 drivers/gpu/drm/nouveau/nouveau_vmm.c:127 nouveau_cli_fini+0x10e/0x210 drivers/gpu/drm/nouveau/nouveau_drm.c:225 nouveau_drm_open+0x24e/0x740 drivers/gpu/drm/nouveau/nouveau_drm.c:1255 drm_file_alloc+0x5f2/0xad0 drivers/gpu/drm/drm_file.c:176 drm_open_helper+0x1d7/0x4a0 drivers/gpu/drm/drm_file.c:335 drm_open+0x190/0x3d0 drivers/gpu/drm/drm_file.c:388 drm_stub_open+0x1f2/0x460 drivers/gpu/drm/drm_drv.c:1211 chrdev_open+0x21c/0x660 fs/char_dev.c:411 do_dentry_open+0x59d/0x12b0 fs/open.c:947 vfs_open+0x82/0x390 fs/open.c:1052 do_open fs/namei.c:4700 [inline] path_openat+0x2345/0x3420 fs/namei.c:4863 do_file_open+0x207/0x460 fs/namei.c:4892 do_sys_openat2+0xd1/0x1d0 fs/open.c:1368 do_sys_open fs/open.c:1374 [inline] __do_sys_openat fs/open.c:1390 [inline] __se_sys_openat fs/open.c:1385 [inline] __x64_sys_openat+0x144/0x200 fs/open.c:1385 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x690 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc6d687594d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc6d5295008 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fc6d6b06180 RCX: 00007fc6d687594d RDX: 0000000000022501 RSI: 0000200000000000 RDI: ffffffffffffff9c RBP: 00007fc6d691c303 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc6d6b06218 R14: 00007fc6d6b06180 R15: 00007ffd9451d760 </TASK> Allocated by task 2567 on cpu 1 at 163.593900s: kasan_save_stack+0x24/0x50 mm/kasan/common.c:57 kasan_save_track+0x17/0x60 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5334 [inline] __kmalloc_noprof+0x304/0x7c0 mm/slub.c:5359 _kmalloc_noprof include/linux/slab.h:992 [inline] nvif_vmm_ctor+0x3c0/0x7e0 drivers/gpu/drm/nouveau/nvif/vmm.c:237 nouveau_vmm_init+0x40/0x90 drivers/gpu/drm/nouveau/nouveau_vmm.c:134 nouveau_cli_init+0x7b9/0 ---truncated---

References

NVD — CVE-2026-98515 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98515
git.kernel.org/stable/c/023e7a01f8... WEB
https://git.kernel.org/stable/c/023e7a01f8fb27799f0987b5bcda325d73a2904c
git.kernel.org/stable/c/109a8d2d5b... WEB
https://git.kernel.org/stable/c/109a8d2d5b7d2719ebe09df3f9241023900b3846
git.kernel.org/stable/c/279e5ac137... WEB
https://git.kernel.org/stable/c/279e5ac137370e274a09dd552547ae6bddd0d4d5
git.kernel.org/stable/c/375901ac0f... WEB
https://git.kernel.org/stable/c/375901ac0f286e81be00a4126e57d488cb401884
git.kernel.org/stable/c/872a5473c0... WEB
https://git.kernel.org/stable/c/872a5473c02a26c955be44d52b7ab2f8ea70a2cf
git.kernel.org/stable/c/97077ac87a... WEB
https://git.kernel.org/stable/c/97077ac87afe9e91ec074ef0be64454e7ccbf344
git.kernel.org/stable/c/bf542ecd4f... WEB
https://git.kernel.org/stable/c/bf542ecd4f60d4689818d194e7ca74772fe0f8b5
git.kernel.org/stable/c/f09f4a5369... WEB
https://git.kernel.org/stable/c/f09f4a536935b15539f2de9fe775a2641202be90

Frequently Asked Questions

What is CVE-2026-98515?
CVE-2026-98515 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-98515?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98515?
CVE-2026-98515 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98515?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-82rj-6xvq-73v7",
  "modified" : "2026-10-18T18:31:52Z",
  "published" : "2026-10-18T18:31:52Z",
  "aliases" : [ "CVE-2026-98515" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: fix double-free in nvif_vmm_dtor\n\nOn failure, nouveau_cli_init() calls nouveau_cli_fini() to tear\nthe client down. Then, nouveau_drm_open() also enters into its\ncleanup path and calls nouveau_cli_fini() AGAIN. nouveau_cli_fini()\ncalls nouveau_vmm_fini():\n\n\tvoid\n\tnouveau_vmm_fini(struct nouveau_vmm *vmm)\n\t{\n\t\tnouveau_svmm_fini(&vmm->svmm);\n\t\tnvif_vmm_dtor(&vmm->vmm);\n\t\tvmm->cli = NULL;\n\t}\n\nInside nvif_vmm_dtor(), vmm->page is freed unconditionally:\n\n\tvoid\n\tnvif_vmm_dtor(struct nvif_vmm *vmm)\n\t{\n\t\tkfree(vmm->page);\n\t\tnvif_object_dtor(&vmm->object);\n\t}\n\nvmm->page is never cleared after being freed, so the second call of\nnvif_vmm_dtor() will cause a double-free.\n\nFound by fuzzing the nouveau driver with a modified Syzkaller:\n\n\tBUG: KASAN: double-free in nvif_vmm_dtor+0x31/0x50 drivers/gpu/drm/nouveau/nvif/vmm.c:194\n\tFree of addr ffff888010fcdc30 by task syz.0.173/2567\n\n\tCPU: 1 UID: 0 PID: 2567 Comm: syz.0.173 Not tainted 7.2.0 #24 PREEMPT(lazy)\n\tHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n\tCall Trace:\n\t<TASK>\n\t__dump_stack lib/dump_stack.c:94 [inline]\n\tdump_stack_lvl+0x95/0xe0 lib/dump_stack.c:120\n\tprint_address_description mm/kasan/report.c:378 [inline]\n\tprint_report+0xcb/0x5a0 mm/kasan/report.c:482\n\tkasan_report_invalid_free+0xaa/0xd0 mm/kasan/report.c:557\n\tcheck_slab_allocation+0xe4/0x110 mm/kasan/common.c:235\n\tkasan_slab_pre_free include/linux/kasan.h:199 [inline]\n\tslab_free_hook mm/slub.c:2622 [inline]\n\tslab_free mm/slub.c:6377 [inline]\n\tkfree+0x192/0x590 mm/slub.c:6692\n\tnvif_vmm_dtor+0x31/0x50 drivers/gpu/drm/nouveau/nvif/vmm.c:194\n\tnouveau_vmm_fini+0x16/0x50 drivers/gpu/drm/nouveau/nouveau_vmm.c:127\n\tnouveau_cli_fini+0x10e/0x210 drivers/gpu/drm/nouveau/nouveau_drm.c:225\n\tnouveau_drm_open+0x24e/0x740 drivers/gpu/drm/nouveau/nouveau_drm.c:1255\n\tdrm_file_alloc+0x5f2/0xad0 drivers/gpu/drm/drm_file.c:176\n\tdrm_open_helper+0x1d7/0x4a0 drivers/gpu/drm/drm_file.c:335\n\tdrm_open+0x190/0x3d0 drivers/gpu/drm/drm_file.c:388\n\tdrm_stub_open+0x1f2/0x460 drivers/gpu/drm/drm_drv.c:1211\n\tchrdev_open+0x21c/0x660 fs/char_dev.c:411\n\tdo_dentry_open+0x59d/0x12b0 fs/open.c:947\n\tvfs_open+0x82/0x390 fs/open.c:1052\n\tdo_open fs/namei.c:4700 [inline]\n\tpath_openat+0x2345/0x3420 fs/namei.c:4863\n\tdo_file_open+0x207/0x460 fs/namei.c:4892\n\tdo_sys_openat2+0xd1/0x1d0 fs/open.c:1368\n\tdo_sys_open fs/open.c:1374 [inline]\n\t__do_sys_openat fs/open.c:1390 [inline]\n\t__se_sys_openat fs/open.c:1385 [inline]\n\t__x64_sys_openat+0x144/0x200 fs/open.c:1385\n\tdo_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n\tdo_syscall_64+0x115/0x690 arch/x86/entry/syscall_64.c:94\n\tentry_SYSCALL_64_after_hwframe+0x77/0x7f\n\tRIP: 0033:0x7fc6d687594d\n\tCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\n\tRSP: 002b:00007fc6d5295008 EFLAGS: 00000246 ORIG_RAX: 0000000000000101\n\tRAX: ffffffffffffffda RBX: 00007fc6d6b06180 RCX: 00007fc6d687594d\n\tRDX: 0000000000022501 RSI: 0000200000000000 RDI: ffffffffffffff9c\n\tRBP: 00007fc6d691c303 R08: 0000000000000000 R09: 0000000000000000\n\tR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\n\tR13: 00007fc6d6b06218 R14: 00007fc6d6b06180 R15: 00007ffd9451d760\n\t</TASK>\n\n\tAllocated by task 2567 on cpu 1 at 163.593900s:\n\tkasan_save_stack+0x24/0x50 mm/kasan/common.c:57\n\tkasan_save_track+0x17/0x60 mm/kasan/common.c:78\n\tpoison_kmalloc_redzone mm/kasan/common.c:398 [inline]\n\t__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415\n\tkasan_kmalloc include/linux/kasan.h:263 [inline]\n\t__do_kmalloc_node mm/slub.c:5334 [inline]\n\t__kmalloc_noprof+0x304/0x7c0 mm/slub.c:5359\n\t_kmalloc_noprof include/linux/slab.h:992 [inline]\n\tnvif_vmm_ctor+0x3c0/0x7e0 drivers/gpu/drm/nouveau/nvif/vmm.c:237\n\tnouveau_vmm_init+0x40/0x90 drivers/gpu/drm/nouveau/nouveau_vmm.c:134\n\tnouveau_cli_init+0x7b9/0\n---truncated---",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98515"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/023e7a01f8fb27799f0987b5bcda325d73a2904c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/109a8d2d5b7d2719ebe09df3f9241023900b3846"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/279e5ac137370e274a09dd552547ae6bddd0d4d5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/375901ac0f286e81be00a4126e57d488cb401884"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/872a5473c02a26c955be44d52b7ab2f8ea70a2cf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/97077ac87afe9e91ec074ef0be64454e7ccbf344"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bf542ecd4f60d4689818d194e7ca74772fe0f8b5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f09f4a536935b15539f2de9fe775a2641202be90"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:02Z"
  }
}