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.
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ddc79fba132b807ff775467acceaf48b456e008b
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f03aa5e39da7d045615b3951d2a6ca1d7132f881
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 53c6351597e6a17ec6619f6f060d54128cb9a187
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4b292286949588bd2818e66ff102db278de8dd26
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a150275831b765b0f1de8b8ff52ec5c6933ac15d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 27e06650a5eafe832a90fd2604f0c5e920857fae
5.15.195
6.1.156
6.6.110
6.12.51
6.16.11
6.17.1
6.18-rc1
References
git.kernel.org/...c/ddc79fba132b807ff775467acceaf48b456e008b
git.kernel.org/...c/e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4
git.kernel.org/...c/f03aa5e39da7d045615b3951d2a6ca1d7132f881
git.kernel.org/...c/53c6351597e6a17ec6619f6f060d54128cb9a187
git.kernel.org/...c/4b292286949588bd2818e66ff102db278de8dd26
git.kernel.org/...c/a150275831b765b0f1de8b8ff52ec5c6933ac15d
git.kernel.org/...c/27e06650a5eafe832a90fd2604f0c5e920857fae
