fkie_cve-2022-50436
Vulnerability from fkie_nvd
Published
2025-10-01 12:15
Modified
2025-10-02 19:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature") extended the scope of the transaction in ext4_unlink() too far, making it include the call to ext4_find_entry(). However, ext4_find_entry() can deadlock when called from within a transaction because it may need to set up the directory's encryption key. Fix this by restoring the transaction to its original scope.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ba993208bcfd691e241483420a2a761d3f15750
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6220ec405571ded17efedc56587190b542adf246
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: don\u0027t set up encryption key during jbd2 transaction\n\nCommit a80f7fcf1867 (\"ext4: fixup ext4_fc_track_* functions\u0027 signature\")\nextended the scope of the transaction in ext4_unlink() too far, making\nit include the call to ext4_find_entry().  However, ext4_find_entry()\ncan deadlock when called from within a transaction because it may need\nto set up the directory\u0027s encryption key.\n\nFix this by restoring the transaction to its original scope."
    }
  ],
  "id": "CVE-2022-50436",
  "lastModified": "2025-10-02T19:12:17.160",
  "metrics": {},
  "published": "2025-10-01T12:15:35.570",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1ba993208bcfd691e241483420a2a761d3f15750"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6220ec405571ded17efedc56587190b542adf246"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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