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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2025-39998

scsi: target: target_core_configfs: Add length check to avoid buffer overflow

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: target_core_configfs: Add length check to avoid buffer overflow A buffer overflow arises from the usage of snprintf to write into the buffer "buf" in target_lu_gp_members_show function located in /drivers/target/target_core_configfs.c. This buffer is allocated with size LU_GROUP_NAME_BUF (256 bytes). snprintf(...) formats multiple strings into buf with the HBA name (hba->hba_group.cg_item), a slash character, a devicename (dev-> dev_group.cg_item) and a newline character, the total formatted string length may exceed the buffer size of 256 bytes. Since snprintf() returns the total number of bytes that would have been written (the length of %s/%sn ), this value may exceed the buffer length (256 bytes) passed to memcpy(), this will ultimately cause function memcpy reporting a buffer overflow error. An additional check of the return value of snprintf() can avoid this buffer overflow.

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

  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < e6eeee5dc0d9221ff96d1b229b1d0222c8871b84affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < 764a91e2fc9639e07aac93bc70e387e6b1e33084affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < ddc79fba132b807ff775467acceaf48b456e008baffected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < f03aa5e39da7d045615b3951d2a6ca1d7132f881affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < 53c6351597e6a17ec6619f6f060d54128cb9a187affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < 4b292286949588bd2818e66ff102db278de8dd26affected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < a150275831b765b0f1de8b8ff52ec5c6933ac15daffected
  • c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 to < 27e06650a5eafe832a90fd2604f0c5e920857faeaffected

Linux Linux

Default version status: affected

  • 2.6.38affected
  • 0 to < 2.6.38unaffected
  • 5.4.301 to ≤ 5.4.*unaffected
  • 5.10.246 to ≤ 5.10.*unaffected
  • 5.15.195 to ≤ 5.15.*unaffected
  • 6.1.156 to ≤ 6.1.*unaffected
  • 6.6.110 to ≤ 6.6.*unaffected
  • 6.12.51 to ≤ 6.12.*unaffected
  • 6.16.11 to ≤ 6.16.*unaffected
  • 6.17.1 to ≤ 6.17.*unaffected
  • 6.18 to ≤ *unaffected

References