CVE-2022-49793

published 2025-05-01

CVE-2022-49793: In the Linux kernel, the following vulnerability has been resolved: iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init() dev_set_name()…

Priority P4 19 medium 5.5 CVSS 3.1

AV L AC L PR L UI N S U C N I N A H

In the Linux kernel, the following vulnerability has been resolved:

iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()

dev_set_name() allocates memory for name, it need be freed
when device_add() fails, call put_device() to give up the
reference that hold in device_initialize(), so that it can
be freed in kobject_cleanup() when the refcount hit to 0.

Fault injection test can trigger this:

unreferenced object 0xffff8e8340a7b4c0 (size 32):
comm "modprobe", pid 243, jiffies 4294678145 (age 48.845s)
hex dump (first 32 bytes):
69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge
72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............
backtrace:
[] __kmem_cache_alloc_node+0x1e9/0x360
[] __kmalloc_node_track_caller+0x44/0x1a0
[] kstrdup+0x2d/0x60
[] kobject_set_name_vargs+0x1e/0x90
[] dev_set_name+0x4e/0x70

Affected

22 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.0.10-1 (bookworm)	linux 6.0.10-1 (bookworm)
linux	linux	—	—
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < f68c96821b61d2c71a35dbb8bf90c347fad624d9	f68c96821b61d2c71a35dbb8bf90c347fad624d9
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < 5a39382aa5411d64b25a71516c2c7480aab13bb7	5a39382aa5411d64b25a71516c2c7480aab13bb7
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < b47bb521961f027b4dcf8683337a7a1ba9e5ea1f	b47bb521961f027b4dcf8683337a7a1ba9e5ea1f
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < 0dd52e141afde089304de470148d311b05c14564	0dd52e141afde089304de470148d311b05c14564
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < 8dddf2699da296c84205582aaead6b43dd7e8c4b	8dddf2699da296c84205582aaead6b43dd7e8c4b
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < 656f670613662b6cc77aad14112db2803ad18fa8	656f670613662b6cc77aad14112db2803ad18fa8
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < 2c4e65285bdea23fd36d2ff376006ac64db6f42e	2c4e65285bdea23fd36d2ff376006ac64db6f42e
linux	linux	>= 1f785681a87068f123d3e23da13b2c55ab4f93ac < efa17e90e1711bdb084e3954fa44afb6647331c0	efa17e90e1711bdb084e3954fa44afb6647331c0
linux	linux_kernel	—	—
linux	linux_kernel	>= 0 < 5.10.158-1	5.10.158-1
linux	linux_kernel	>= 0 < 6.0.10-1	6.0.10-1
linux	linux_kernel	>= 0 < 6.0.10-1	6.0.10-1
linux	linux_kernel	>= 0 < 6.0.10-1	6.0.10-1
linux	linux_kernel	>= 3.0 < 4.9.334	4.9.334
linux	linux_kernel	>= 4.10 < 4.14.300	4.14.300
linux	linux_kernel	>= 4.15 < 4.19.267	4.19.267
linux	linux_kernel	>= 4.20 < 5.4.225	5.4.225
linux	linux_kernel	>= 5.11 < 5.15.80	5.15.80
linux	linux_kernel	>= 5.16 < 6.0.10	6.0.10
linux	linux_kernel	>= 5.5 < 5.10.156	5.10.156

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

vendor_redhat 5.5 MEDIUM

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