{
  "cveId": "CVE-2026-45961",
  "url": "https://patchblox.com/security/cve/CVE-2026-45961",
  "summary": "CVE-2026-45961 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-45961, released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  gfs2: fix memory leaks in gfs2_fill_super error...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  gfs2: fix memory leaks in gfs2_fill_super error path  Fix two memory leaks in the gfs2_fill_super() error handling path when transitioning a filesystem to read-write mode fails.  First leak: kthread objects (thread_struct, task_struct, etc.) When gfs2_freeze_lock_shared() fails after init_threads() succeeds, the created kernel threads (logd and quotad) are never destroyed. This occurs because the fail_per_node label doesn\u0027t call gfs2_destroy_threads().  Second leak: quota bitmap buffer (8192 bytes) When gfs2_make_fs_rw() fails after gfs2_quota_init() succeeds but before other operations complete, the allocated quota bitmap is never freed.  The fix moves thread cleanup to the fail_per_node label to handle all error paths uniformly. gfs2_destroy_threads() is safe to call unconditionally as it checks for NULL pointers. Quota cleanup is added in gfs2_make_fs_rw() to properly handle the withdrawal case where quota initialization succeeds but the filesystem is then withdrawn.  Thread leak backtrace (gfs2_freeze_lock_shared failure):   unreferenced object 0xffff88801d7bca80 (size 4480):     copy_process\u002B0x3a1/0x4670 kernel/fork.c:2422     kernel_clone\u002B0xf3/0x6e0 kernel/fork.c:2779     kthread_create_on_node\u002B0x100/0x150 kernel/kthread.c:478     init_threads\u002B0xab/0x350 fs/gfs2/ops_fstype.c:611     gfs2_fill_super\u002B0xe5c/0x1240 fs/gfs2/ops_fstype.c:1265  Quota leak backtrace (gfs2_make_fs_rw failure):   unreferenced object 0xffff88812de7c000 (size 8192):     gfs2_quota_init\u002B0xe5/0x820 fs/gfs2/quota.c:1409     gfs2_make_fs_rw\u002B0x7a/0xe0 fs/gfs2/super.c:149     gfs2_fill_super\u002B0xfbb/0x1240 fs/gfs2/ops_fstype.c:1275",
  "published": "2026-05-27T14:17:12Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00163,
  "epssPercentile": 0.05538,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "platform": "linux",
      "product": "dtb-aarch64",
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      "fix": "OPENSUSE-SU-2026:21388-1",
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      "released": "2026-07-21T08:27:32Z"
    },
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      "product": "kernel-64kb",
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      "fix": "SUSE-SU-2026:2722-1",
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      "released": "2026-07-01T13:35:33Z"
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      "fix": "SUSE-SU-2026:22835-1",
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      "released": "2026-07-21T08:27:34Z"
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      "product": "kernel-azure",
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}