cbcvebase.
CVE-2022-49741
published 2025-03-27

CVE-2022-49741: In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: fix error handling code in ufx_usb_probe The current error handling code in…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.18%
7.9th percentile
In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: fix error handling code in ufx_usb_probe The current error handling code in ufx_usb_probe have many unmatching issues, e.g., missing ufx_free_usb_list, destroy_modedb label should only include framebuffer_release, fb_dealloc_cmap only matches fb_alloc_cmap. My local syzkaller reports a memory leak bug: memory leak in ufx_usb_probe BUG: memory leak unreferenced object 0xffff88802f879580 (size 128): comm "kworker/0:7", pid 17416, jiffies 4295067474 (age 46.710s) hex dump (first 32 bytes): 80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff .!|............. 00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045 [] kmalloc include/linux/slab.h:553 [inline] [] kzalloc include/linux/slab.h:689 [inline] [] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline] [] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655 [] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [] call_driver_probe drivers/base/dd.c:560 [inline] [] really_probe+0x12d/0x390 drivers/base/dd.c:639 [] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 [] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808 [] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936 [] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427 [] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008 [] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487 [] device_add+0x642/0xdc0 drivers/base/core.c:3517 [] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170 [] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [] call_driver_probe drivers/base/dd.c:560 [inline] [] really_probe+0x12d/0x390 drivers/base/dd.c:639 [] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 Fix this bug by rewriting the error handling code in ufx_usb_probe.

Affected

26 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.11-1 (bookworm)linux 6.1.11-1 (bookworm)
linuxlinux——
linuxlinux——
linuxlinux——
linuxlinux——
linuxlinux——
linuxlinux>= 4.14.298 < 4.154.15
linuxlinux>= 4.19.264 < 4.204.20
linuxlinux>= 4.9.332 < 4.104.10
linuxlinux>= 5.10.153 < 5.10.1685.10.168
linuxlinux>= 5.15.77 < 5.15.935.15.93
linuxlinux>= 5.4.223 < 5.4.2325.4.232
linuxlinux>= 5385af2f89bc352fb70753ab41b2bb036190141f < 3b3d3127f5b4291ae4caaf50f7b66089ad6004803b3d3127f5b4291ae4caaf50f7b66089ad600480
linuxlinux>= 6.0.7 < 6.16.1
linuxlinux>= cc67482c9e5f2c80d62f623bcc347c29f9f648e1 < 1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b
linuxlinux>= cc67482c9e5f2c80d62f623bcc347c29f9f648e1 < b76449ee75e21acfe9fa4c653d8598f191ed7d68b76449ee75e21acfe9fa4c653d8598f191ed7d68
linuxlinux>= cc6a7249842fceda7574ceb63275a2d5e99d2862 < 64fa364ad3245508d393e16ed4886f92d7eb423c64fa364ad3245508d393e16ed4886f92d7eb423c
linuxlinux>= d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86 < 3931014367ef31d26af65386a4ca496f50f0cfdf3931014367ef31d26af65386a4ca496f50f0cfdf
linuxlinux_kernel< 5.4.2325.4.232
linuxlinux_kernel>= 0 < 5.10.178-15.10.178-1
linuxlinux_kernel>= 0 < 6.1.11-16.1.11-1
linuxlinux_kernel>= 0 < 6.1.11-16.1.11-1
linuxlinux_kernel>= 0 < 6.1.11-16.1.11-1
linuxlinux_kernel>= 5.11 < 5.15.935.15.93
linuxlinux_kernel>= 5.16 < 6.1.116.1.11

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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