CVE-2022-50782

UNRATEDCVSS · not yet scoredTrending — 4 sources updated this week

Also known asEUVD-2022-55779 (ENISA EUVD) · GHSA-pjj6-7q87-wc4g (GitHub Security Advisories)Source: ENISA EUVD

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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

ext4: fix bug_on in __es_tree_search caused by bad quota inode

We got a issue as fllows: ================================================================== kernel BUG at fs/ext4/extents_status.c:202! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 1 PID: 810 Comm: mount Not tainted 6.1.0-rc1-next-g9631525255e3 #352 RIP: 0010:__es_tree_search.isra.0+0xb8/0xe0 RSP: 0018:ffffc90001227900 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000077512a0f RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000002a10 RDI: ffff8881004cd0c8 RBP: ffff888177512ac8 R08: 47ffffffffffffff R09: 0000000000000001 R10: 0000000000000001 R11: 00000000000679af R12: 0000000000002a10 R13: ffff888177512d88 R14: 0000000077512a10 R15: 0000000000000000 FS: 00007f4bd76dbc40(0000)GS:ffff88842fd00000(0000)knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005653bf993cf8 CR3: 000000017bfdf000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_es_cache_extent+0xe2/0x210 ext4_cache_extents+0xd2/0x110 ext4_find_extent+0x5d5/0x8c0 ext4_ext_map_blocks+0x9c/0x1d30 ext4_map_blocks+0x431/0xa50 ext4_getblk+0x82/0x340 ext4_bread+0x14/0x110 ext4_quota_read+0xf0/0x180 v2_read_header+0x24/0x90 v2_check_quota_file+0x2f/0xa0 dquot_load_quota_sb+0x26c/0x760 dquot_load_quota_inode+0xa5/0x190 ext4_enable_quotas+0x14c/0x300 __ext4_fill_super+0x31cc/0x32c0 ext4_fill_super+0x115/0x2d0 get_tree_bdev+0x1d2/0x360 ext4_get_tree+0x19/0x30 vfs_get_tree+0x26/0xe0 path_mount+0x81d/0xfc0 do_mount+0x8d/0xc0 __x64_sys_mount+0xc0/0x160 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd ==================================================================

Above issue may happen as follows: ------------------------------------- ext4_fill_super ext4_orphan_cleanup ext4_enable_quotas ext4_quota_enable ext4_iget --> get error inode <5> ext4_ext_check_inode --> Wrong imode makes it escape inspection make_bad_inode(inode) --> EXT4_BOOT_LOADER_INO set imode dquot_load_quota_inode vfs_setup_quota_inode --> check pass dquot_load_quota_sb v2_check_quota_file v2_read_header ext4_quota_read ext4_bread ext4_getblk ext4_map_blocks ext4_ext_map_blocks ext4_find_extent ext4_cache_extents ext4_es_cache_extent __es_tree_search.isra.0 ext4_es_end --> Wrong extents trigger BUG_ON

In the above issue, s_usr_quota_inum is set to 5, but inode<5> contains incorrect imode and disordered extents. Because 5 is EXT4_BOOT_LOADER_INO, the ext4_ext_check_inode check in the ext4_iget function can be bypassed, finally, the extents that are not checked trigger the BUG_ON in the __es_tree_search function. To solve this issue, check whether the inode is bad_inode in vfs_setup_quota_inode().

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-26). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 24, 2025

Last Modified

April 15, 2026

References (7)

Vendor Advisories for CVE-2022-50782(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-0:4.18.0-553.el8_102024-05-22redhat
redhatkernel-0:5.14.0-427.13.1.el9_42024-04-30redhat
linuxKernel @ 4.19.270 (fixes >=3.10.0)—osv

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (25 versions)
  • every version up to 5.10.178-1: fixed in 5.10.178-1
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Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.4-1: fixed in 6.1.4-1
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Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.4-1: fixed in 6.1.4-1
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Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.4-1: fixed in 6.1.4-1
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Data Freshness Timeline

(refreshed 10× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 238 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 140 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-31 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-28 16:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-27 16:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-27 10:46 UTCEG score recompute
  8. 2026-10-27 10:46 UTCVendor advisory
  9. 2026-10-27 10:46 UTCGHSA enrichmentGHSA-pjj6-7q87-wc4g
  10. 2026-10-26 16:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-25 23:25 UTCOSV refresh
  12. 2026-10-25 17:53 UTCEG score recompute
  13. 2026-10-25 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-24 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-22 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-19 16:28 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-18 08:18 UTCEG score recompute
  22. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-16 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-15 16:28 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 73 more
  1. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-12 18:40 UTCEG score recompute
  3. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-11 22:04 UTCEG score recompute
  5. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-08 17:05 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-03 12:39 UTCOSV refresh
  15. 2026-09-30 16:13 UTCEG score recompute
  16. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  18. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  19. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  20. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  21. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-09-15 03:07 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  26. 2026-09-14 05:49 UTCOSV refresh
  27. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  28. 2026-09-11 14:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  29. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  30. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  31. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  32. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  33. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  34. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  35. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  36. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  37. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  38. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  39. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  40. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  41. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  42. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  43. 2026-08-26 06:43 UTCOSV refresh
  44. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  45. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  46. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  47. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  48. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  49. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  50. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  51. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  52. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-08-15 01:27 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  54. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  55. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  56. 2026-08-09 22:49 UTCVendor advisory
  57. 2026-08-09 22:49 UTCGHSA enrichmentGHSA-pjj6-7q87-wc4g
  58. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  59. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  60. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  61. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  62. 2026-08-06 07:12 UTCEG score recompute
  63. 2026-08-06 07:12 UTCVendor advisory
  64. 2026-08-06 07:12 UTCGHSA enrichmentGHSA-pjj6-7q87-wc4g
  65. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  66. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  67. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  68. 2026-08-03 10:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  69. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  70. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  71. 2026-07-30 16:25 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  72. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  73. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2022-50782?
CVE-2022-50782 is a vulnerability whose severity is not yet rated; its CVE record was published on December 24, 2025. In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in __es_tree_search caused by bad quota inode We got a issue as fllows: ================================================================== kernel BUG at fs/ext4/extents_status.c:202! invalid opcode: 0000 [#1]…
When was the CVE record for CVE-2022-50782 published?
The CVE record for CVE-2022-50782 was published on December 24, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 15, 2026; the record at its source may have been updated since.
Is CVE-2022-50782 actively exploited?
CVE-2022-50782 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
How do I remediate CVE-2022-50782?
A fix for CVE-2022-50782 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-50782 are linked in the Vendor Advisories panel on this page.

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