CVE-2022-49741
- Source
- https://cve.org/CVERecord?id=CVE-2022-49741
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49741.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49741
- Downstream
DEBIAN (1)
UBUNTU (1)
- Related
- Published
- 2025-03-27T16:42:52Z
- Modified
- 2026-10-20T10:31:17Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- fbdev: smscufx: fix error handling code in ufx_usb_probe
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49741.json" }- References
-
- https://git.kernel.org/stable/c/1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b
- https://git.kernel.org/stable/c/3931014367ef31d26af65386a4ca496f50f0cfdf
- https://git.kernel.org/stable/c/3b3d3127f5b4291ae4caaf50f7b66089ad600480
- https://git.kernel.org/stable/c/64fa364ad3245508d393e16ed4886f92d7eb423c
- https://git.kernel.org/stable/c/b76449ee75e21acfe9fa4c653d8598f191ed7d68
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49741.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49741
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5385af2f89bc352fb70753ab41b2bb036190141fFixed3b3d3127f5b4291ae4caaf50f7b66089ad600480
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86Fixed3931014367ef31d26af65386a4ca496f50f0cfdf
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcc6a7249842fceda7574ceb63275a2d5e99d2862Fixed64fa364ad3245508d393e16ed4886f92d7eb423c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcc67482c9e5f2c80d62f623bcc347c29f9f648e1Fixed1b4c08844628dfc8d72d3f51b657f2a5e63b7b4bFixedb76449ee75e21acfe9fa4c653d8598f191ed7d68
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.4.223Fixed5.4.232
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.10.153Fixed5.10.168
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.77Fixed5.15.93
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.9.332Fixed4.10
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.14.298Fixed4.15
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.19.264Fixed4.20
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.0.7Fixed6.1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3f40852d671072836fb7ae331a1f28a24223c4e8
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced70faf9d9b6cc74418716bbf76fe75bd2da10ad4a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8d924b262f3178a9b17c17d4306a9f426c508bd9
Affected versions
v4.*
v5.*
v6.*
Linux / Kernel
Package
- Name
- Kernel