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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2023-53396

ubifs: Fix memory leak in do_rename

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memory leak in do_rename If renaming a file in an encrypted directory, function fscrypt_setup_filename allocates memory for a file name. This name is never used, and before returning to the caller the memory for it is not freed. When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'rename' that renames a file in an encrypted directory: unreferenced object 0xffff888101502840 (size 32): comm "rename", pid 9404, jiffies 4302582475 (age 435.735s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename do_rename ubifs_rename vfs_rename do_renameat2 To fix this we can remove the call to fscrypt_setup_filename as it's not needed.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • c67bc98d1f0853bb196e9c48eab38b6f2ddab795 to < 43b2f7d690697182beed6f71aa57b7249d3cfc9caffected
  • 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 to < 9f565752b328fe53c9e42b7d4e4d89a1da63d738affected
  • 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 to < 7e264f67b7d6580eff5c2696961039fd05c69258affected
  • 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 to < 517ddc0259d7a7231486bdafde8035c478bc4088affected
  • 278d9a243635f26c05ad95dcf9c5a593b9e04dc6 to < 3a36d20e012903f45714df2731261fdefac900cbaffected
  • 17495eb2f7f08113b50aba298c2c1a045824c4f7affected
  • 868de33a39e0e1e91ed3ce4a23a65f30144d2443affected
  • 5.15.33 to < 5.15.112affected
  • 5.16.19 to < 5.17affected
  • 5.17.2 to < 5.18affected

Linux Linux

Default version status: affected

  • 5.18affected
  • 0 to < 5.18unaffected
  • 5.15.112 to ≤ 5.15.*unaffected
  • 6.1.28 to ≤ 6.1.*unaffected
  • 6.2.15 to ≤ 6.2.*unaffected
  • 6.3.2 to ≤ 6.3.*unaffected
  • 6.4 to ≤ *unaffected

References