Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-49914— btrfs: fix inode list leak during backref walking at resolve_indirect_refs()

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.19% · P9

Possible ATT&CK Techniques 1AI

T1499.001 · OS Exhaustion Flood

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinux3301958b7c1dae8f0f5ded63aa881e0b71e78464< b1dc9019bb5f89abae85645de1a2dd4830c1f8e9affected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< cded2c89774b99b67c98147ae103ea878c92a206affected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< 2c0329406bb28109c07c6e23e5e3e0fa618a95d7affected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< a52e24c7fcc3c5ce3588a14e3663c00868d36623affected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< 6ba3479f9e96b9ad460c7e77abc26dd16e5dec4faffected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< 396515db923ad5cbeb179d6b88927870b4cbebb7affected
3301958b7c1dae8f0f5ded63aa881e0b71e78464< 5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1affected
3.5affected
… +8 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2022-49914

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
btrfs: fix inode list leak during backref walking at resolve_indirect_refs()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix inode list leak during backref walking at resolve_indirect_refs() During backref walking, at resolve_indirect_refs(), if we get an error we jump to the 'out' label and call ulist_free() on the 'parents' ulist, which frees all the elements in the ulist - however that does not free any inode lists that may be attached to elements, through the 'aux' field of a ulist node, so we end up leaking lists if we have any attached to the unodes. Fix this by calling free_leaf_list() instead of ulist_free() when we exit from resolve_indirect_refs(). The static function free_leaf_list() is moved up for this to be possible and it's slightly simplified by removing unnecessary code.
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btrfs resolve_indirect_refs错误路径中inode列表泄漏，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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 3301958b7c1dae8f0f5ded63aa881e0b71e78464 ~ b1dc9019bb5f89abae85645de1a2dd4830c1f8e9 -
LinuxLinux 3.5 -

II. Public POCs for CVE-2022-49914

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-49914

请登录查看更多情报信息。

Patches & Fixes for CVE-2022-49914 (7)

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

CVE-2025-377509.8 CRITICALsmb: client: fix UAF in decryption with multichannel
CVE-2025-377789.8 CRITICALksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-497709.8 CRITICALceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-499318.8 HIGHIB/hfi1: Correctly move list in sc_disable()
CVE-2025-377768.8 HIGHksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-377778.8 HIGHksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-377908.8 HIGHnet: mctp: Set SOCK_RCU_FREE
CVE-2022-499108.8 HIGHBluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-498868.4 HIGHx86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-231598.4 HIGHmedia: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-377498.2 HIGHnet: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-377747.8 HIGHslab: ensure slab->obj_exts is clear in a newly allocated slab page
CVE-2025-377897.8 HIGHnet: openvswitch: fix nested key length validation in the set() action
CVE-2025-377797.8 HIGHlib/iov_iter: fix to increase non slab folio refcount
CVE-2022-499207.8 HIGHnetfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-499197.8 HIGHnetfilter: nf_tables: release flow rule object from commit path
CVE-2025-377567.8 HIGHnet: tls: explicitly disallow disconnect
CVE-2025-377617.8 HIGHdrm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-377637.8 HIGHdrm/imagination: take paired job reference
CVE-2025-231417.8 HIGHKVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

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-2022-49914

No comments yet

Leave a comment