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CVE-2022-49794— iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()

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at91_adc驱动中触发器注册失败未释放内存，可能导致内存泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.19% · P9

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< c3ce73f60599a483dca7becd4112508833a40ef9 affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4 affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< 2b29a7f2d52fb5281b30cf61c947d88bab18a29b affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< 7b75515728b628a9a7540f201efdeb8ca7299385 affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< 85d2a8b287a89853c0dcfc5a97b5e9d36376fe37 affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< c27a3b6ba23350708cf5ab9962337447b51eb76d affected
0e589d5fb3172b0dde7fdad3a4829ce5352dd30d< 65f20301607d07ee279b0804d11a05a62a6c1a1c affected
… +10 more rows
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I. Basic Information for CVE-2022-49794

Vulnerability Information
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Vulnerability Title
iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger() If iio_trigger_register() returns error, it should call iio_trigger_free() to give up the reference that hold in iio_trigger_alloc(), so that it can call iio_trig_release() to free memory when the refcount hit to 0.
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at91_adc驱动中触发器注册失败未释放内存，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 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d ~ c3ce73f60599a483dca7becd4112508833a40ef9 -
Linux Linux 3.5 -

II. Public POCs for CVE-2022-49794

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III. Intelligence Information for CVE-2022-49794

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Patches & Fixes for CVE-2022-49794 (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-2022-49794

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