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CVE-2022-49793— iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iio trigger sysfs中设备名内存泄漏，可能导致内存泄漏。

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1569.002 · Service Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1f785681a87068f123d3e23da13b2c55ab4f93ac< f68c96821b61d2c71a35dbb8bf90c347fad624d9 affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< 5a39382aa5411d64b25a71516c2c7480aab13bb7 affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< b47bb521961f027b4dcf8683337a7a1ba9e5ea1f affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< 0dd52e141afde089304de470148d311b05c14564 affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< 8dddf2699da296c84205582aaead6b43dd7e8c4b affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< 656f670613662b6cc77aad14112db2803ad18fa8 affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< 2c4e65285bdea23fd36d2ff376006ac64db6f42e affected
1f785681a87068f123d3e23da13b2c55ab4f93ac< efa17e90e1711bdb084e3954fa44afb6647331c0 affected
… +10 more rows
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I. Basic Information for CVE-2022-49793

Vulnerability Information
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Vulnerability Title
iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()
Source: CVE Program / CVE List V5
Vulnerability Description
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: [<0000000074999de8>] __kmem_cache_alloc_node+0x1e9/0x360 [<00000000497fd30b>] __kmalloc_node_track_caller+0x44/0x1a0 [<000000003636c520>] kstrdup+0x2d/0x60 [<0000000032f84da2>] kobject_set_name_vargs+0x1e/0x90 [<0000000092efe493>] dev_set_name+0x4e/0x70
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iio trigger sysfs中设备名内存泄漏，可能导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1f785681a87068f123d3e23da13b2c55ab4f93ac ~ f68c96821b61d2c71a35dbb8bf90c347fad624d9 -
Linux Linux 3.0 -

II. Public POCs for CVE-2022-49793

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III. Intelligence Information for CVE-2022-49793

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Patches & Fixes for CVE-2022-49793 (8)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750 9.8 CRITICAL smb: client: fix UAF in decryption with multichannel
CVE-2025-37778 9.8 CRITICAL ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770 9.8 CRITICAL ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931 8.8 HIGH IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776 8.8 HIGH ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777 8.8 HIGH ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790 8.8 HIGH net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37765 7.8 HIGH drm/nouveau: prime: fix ttm_bo_delayed_delete oops
CVE-2025-37779 7.8 HIGH lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920 7.8 HIGH netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919 7.8 HIGH netfilter: nf_tables: release flow rule object from commit path
CVE-2022-49921 7.8 HIGH net: sched: Fix use after free in red_enqueue()
CVE-2025-37752 7.8 HIGH net_sched: sch_sfq: move the limit validation
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2022-49804 7.8 HIGH s390: avoid using global register for current_stack_pointer

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49793

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