CVE-2023-53644: media: radio-shark: Add endpoint checks
In the Linux kernel, the following vulnerability has been resolved:
media: radio-shark: Add endpoint checks
The syzbot fuzzer was able to provoke a WARNING from the radio-shark2 driver:
------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 3271 at drivers/usb/core/urb.c:504 usbsubmiturb+0xed2/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 3271 Comm: kworker/0:3 Not tainted 6.1.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usbhubwq hubevent RIP: 0010:usbsubmiturb+0xed2/0x1880 drivers/usb/core/urb.c:504 Code: 7c 24 18 e8 00 36 ea fb 48 8b 7c 24 18 e8 36 1c 02 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 a0 b6 90 8a e8 9a 29 b8 03 <0f> 0b e9 58 f8 ff ff e8 d2 35 ea fb 48 81 c5 c0 05 00 00 e9 84 f7 RSP: 0018:ffffc90003876dd0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff8880750b0040 RSI: ffffffff816152b8 RDI: fffff5200070edac RBP: ffff8880172d81e0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880285c5040 R14: 0000000000000002 R15: ffff888017158200 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe03235b90 CR3: 000000000bc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> usbstartwaiturb+0x101/0x4b0 drivers/usb/core/message.c:58 usbbulkmsg+0x226/0x550 drivers/usb/core/message.c:387 sharkwritereg+0x1ff/0x2e0 drivers/media/radio/radio-shark2.c:88 ...
The problem was caused by the fact that the driver does not check whether the endpoints it uses are actually present and have the appropriate types. This can be fixed by adding a simple check of these endpoints (and similarly for the radio-shark driver).
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2023-53644?
CVE-2023-53644 has a moderate severity level due to its potential impact on system reliability.
What systems are affected by CVE-2023-53644?
CVE-2023-53644 affects the Linux kernel, particularly the radio-shark2 driver.
How do I fix CVE-2023-53644?
To fix CVE-2023-53644, update the Linux kernel to the latest stable version where the vulnerability has been addressed.
What does CVE-2023-53644 involve?
CVE-2023-53644 involves the addition of endpoint checks in the radio-shark2 driver to prevent USB transfer errors.
Is there a workaround for CVE-2023-53644?
There are no known workarounds for CVE-2023-53644; updating the kernel is recommended for resolution.