Bluetooth: SCO: Fix not validating setsockopt user input

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix not validating setsockopt user input syzbot reported sco_sock_setsockopt() is copying data without checking user input length. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578

Timeline

1. May 20, 2024, 9:41 AM UTCCVE published
2. May 20, 2024, 5:01 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 15, 2026, 12:41 AM UTCRecord last updated

Affected versions

• Linux Linux

  From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in b0e30c37695b614bee69187f86eaf250e36606ce; From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in 2c2dc87cdebef3fe3b9d7a711a984c70e376e32e; From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in 7bc65d23ba20dcd7ecc094a12c181e594e5eb315; From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in 72473db90900da970a16ee50ad23c2c38d107d8c; From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in 419a0ffca7010216f0fc265b08558d7394fa0ba7; From b96e9c671b05f95126753a22145d4509d45ca197 · fixed in 51eda36d33e43201e7a4fd35232e069b2c850b01

• Linux Linux

  3.8

• KernelLinux

  From 3.8.0 · fixed in 5.10.216; From 5.11.0 · fixed in 5.15.178; From 5.16.0 · fixed in 6.1.87; From 6.2.0 · fixed in 6.6.28; From 6.7.0 · fixed in 6.8.7

References 6