CVE-2026-53039

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ocfs2: validate group add input before caching

[BUG] OCFS2_IOC_GROUP_ADD can trigger a BUG_ON in ocfs2_set_new_buffer_uptodate():

kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI RIP: 0010:ocfs2_set_new_buffer_uptodate+0x194/0x1e0 fs/ocfs2/uptodate.c:509 Code: ffffe88f 42b9fe4c 89e64889 dfe8b4df Call Trace: ocfs2_group_add+0x3f1/0x1510 fs/ocfs2/resize.c:507 ocfs2_ioctl+0x309/0x6e0 fs/ocfs2/ioctl.c:887 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x197/0x1e0 fs/ioctl.c:583 x64_sys_call+0x1144/0x26a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x93/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7bbfb55a966d

[CAUSE] ocfs2_group_add() calls ocfs2_set_new_buffer_uptodate() on a user-controlled group block before ocfs2_verify_group_and_input() validates that block number. That helper is only valid for newly allocated metadata and asserts that the block is not already present in the chosen metadata cache. The code also uses INODE_CACHE(inode) even though the group descriptor belongs to main_bm_inode and later journal accesses use that cache context instead.

[FIX] Validate the on-disk group descriptor before caching it, then add it to the metadata cache tracked by INODE_CACHE(main_bm_inode). Keep the validation failure path separate from the later cleanup path so we only remove the buffer from that cache after it has actually been inserted. This keeps the group buffer lifetime consistent across validation, journaling, and cleanup.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

Published

June 24, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jul 17, 2026
Patch available.
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f7e139d7563f6947ad509fb468903941d0bb7ddd
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e7c2cb552e6eb85c0f5aefdd7f0f7c3c8591a6a3
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9ae3942deec4c9e3fa2070521f90910f7490011
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aed87e866d1a321edb9703563c2faa8fec89835d
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/76bd722db0a92b84ccd99e03796a0b6f1ae71c31
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/70b672833f4025341c11b22c7f83778a5cd611bc
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c5e70409c1961fe1278968f038eaaed6cc1145a
generic

ocfs2: validate group add input before caching - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/22544ddedf381ed5191cfc783aea8d6c936bc201

Vendor Advisories for CVE-2026-53039(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-23ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-23ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-23ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-23ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-23ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-136.136.2~22.04.1) @ jammy2026-09-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-23ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-23ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1106.104) @ jammy2026-09-23ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-23ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)
  • every version up to 5.10.259-1: fixed in 5.10.259-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)
  • every version up to 6.1.176-1~deb11u1: fixed in 6.1.176-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (141 versions)
  • every version up to 7.0.10-1: fixed in 7.0.10-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 35× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 210 total refreshes for this CVE.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-08 17:12 UTCEPSS rescore
  4. 2026-10-07 23:48 UTCEPSS rescore
  5. 2026-10-06 15:18 UTCEPSS rescore
  6. 2026-10-05 17:43 UTCEPSS rescore
  7. 2026-10-04 23:22 UTCEPSS rescore
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-29 15:22 UTCEPSS rescore
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-26 15:59 UTCEPSS rescore
  16. 2026-09-26 00:27 UTCEPSS rescore
  17. 2026-09-23 17:53 UTCEPSS rescore
  18. 2026-09-23 11:19 UTCEG score recompute
  19. 2026-09-23 11:19 UTCVendor advisory
  20. 2026-09-23 11:18 UTCGHSA enrichment
  21. 2026-09-20 20:16 UTCEPSS rescore
  22. 2026-09-18 19:28 UTCEPSS rescore
  23. 2026-09-18 07:58 UTCEG score recompute
  24. 2026-09-18 07:58 UTCVendor advisory
  25. 2026-09-18 07:57 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-14 01:48 UTCEG score recompute
  4. 2026-09-14 01:48 UTCVendor advisory
  5. 2026-09-14 01:47 UTCGHSA enrichment
  6. 2026-09-13 16:47 UTCEPSS rescore
  7. 2026-09-12 16:49 UTCEG score recompute
  8. 2026-09-12 16:49 UTCVendor advisory
  9. 2026-09-12 16:49 UTCGHSA enrichment
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-10 09:35 UTCEPSS rescore
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-02 14:12 UTCEPSS rescore
  17. 2026-09-01 13:54 UTCEPSS rescore
  18. 2026-09-01 04:40 UTCEPSS rescore
  19. 2026-08-30 20:07 UTCEG score recompute
  20. 2026-08-30 20:07 UTCVendor advisory
  21. 2026-08-30 20:07 UTCGHSA enrichment
  22. 2026-08-30 19:17 UTCEPSS rescore
  23. 2026-08-30 01:22 UTCEPSS rescore
  24. 2026-08-28 21:41 UTCEPSS rescore
  25. 2026-08-28 03:50 UTCEG score recompute
  26. 2026-08-28 03:50 UTCVendor advisory
  27. 2026-08-28 03:49 UTCGHSA enrichment
  28. 2026-08-27 14:25 UTCEPSS rescore
  29. 2026-08-26 14:46 UTCEPSS rescore
  30. 2026-08-25 13:49 UTCEPSS rescore
  31. 2026-08-24 21:57 UTCEG score recompute
  32. 2026-08-24 21:57 UTCVendor advisory
  33. 2026-08-24 21:56 UTCGHSA enrichment
  34. 2026-08-23 15:04 UTCEG score recompute
  35. 2026-08-23 15:04 UTCVendor advisory
  36. 2026-08-23 15:03 UTCGHSA enrichment
  37. 2026-08-23 00:19 UTCEPSS rescore
  38. 2026-08-22 12:50 UTCEG score recompute
  39. 2026-08-22 12:50 UTCVendor advisory
  40. 2026-08-22 12:49 UTCGHSA enrichment
  41. 2026-08-21 23:49 UTCEPSS rescore
  42. 2026-08-21 09:39 UTCEG score recompute
  43. 2026-08-21 09:39 UTCVendor advisory
  44. 2026-08-21 09:39 UTCGHSA enrichment
  45. 2026-08-20 22:55 UTCEPSS rescore
  46. 2026-08-20 07:25 UTCEG score recompute
  47. 2026-08-20 07:25 UTCVendor advisory
  48. 2026-08-20 07:25 UTCGHSA enrichment
  49. 2026-08-19 17:04 UTCEPSS rescore
  50. 2026-08-19 02:08 UTCEG score recompute
  51. 2026-08-19 02:08 UTCVendor advisory
  52. 2026-08-19 02:08 UTCGHSA enrichment
  53. 2026-08-18 13:48 UTCEPSS rescore
  54. 2026-08-17 13:47 UTCEPSS rescore
  55. 2026-08-16 16:50 UTCEG score recompute
  56. 2026-08-16 16:50 UTCVendor advisory
  57. 2026-08-16 16:50 UTCGHSA enrichment
  58. 2026-08-16 14:56 UTCEPSS rescore
  59. 2026-08-16 02:14 UTCEPSS rescore
  60. 2026-08-15 14:37 UTCEG score recompute
  61. 2026-08-15 14:37 UTCVendor advisory
  62. 2026-08-15 14:37 UTCGHSA enrichment
  63. 2026-08-15 01:30 UTCEPSS rescore
  64. 2026-08-14 12:23 UTCEG score recompute
  65. 2026-08-14 12:23 UTCVendor advisory
  66. 2026-08-14 12:23 UTCGHSA enrichment
  67. 2026-08-13 22:00 UTCEPSS rescore
  68. 2026-08-13 10:10 UTCEG score recompute
  69. 2026-08-13 10:10 UTCVendor advisory
  70. 2026-08-13 10:10 UTCGHSA enrichment
  71. 2026-08-12 13:51 UTCEPSS rescore
  72. 2026-08-12 07:56 UTCEG score recompute
  73. 2026-08-12 07:56 UTCVendor advisory
  74. 2026-08-12 07:56 UTCGHSA enrichment
  75. 2026-08-11 05:43 UTCEG score recompute

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53039?
CVE-2026-53039 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate group add input before caching [BUG] OCFS2IOCGROUPADD can trigger a BUGON in ocfs2setnewbufferuptodate(): kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI RIP:…
When was CVE-2026-53039 disclosed?
CVE-2026-53039 was first published on June 24, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53039 actively exploited?
CVE-2026-53039 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53039?
CVE-2026-53039 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53039?
A fix for CVE-2026-53039 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53039 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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