CVE-2022-49849— btrfs: fix match incorrectly in dev_args_match_device
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 9
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5578b681fbf2b22d61189a2539efd3009518b328< c9fe4719c662e0af17eea723cf345e37719fd3c9 | affected |
562d7b1512f7369a19bca2883e2e8672d78f0481< bc6c127c377010f136360552ebf91c2723081c1b | affected | ||
562d7b1512f7369a19bca2883e2e8672d78f0481< 0fca385d6ebc3cabb20f67bcf8a71f1448bdc001 | affected | ||
5.15.54< 5.15.79 | affected | ||
5.16 | affected | ||
< 5.16 | unaffected | ||
5.15.79≤ 5.15.* | unaffected | ||
6.0.9≤ 6.0.* | unaffected | ||
| … +1 more rows | |||
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I. Basic Information for CVE-2022-49849
Vulnerability Information
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Vulnerability Title
btrfs: fix match incorrectly in dev_args_match_device
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.
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驱动中dev_args_match_device函数对devid匹配不当，可能导致断言失败。
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
II. Public POCs for CVE-2022-49849
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49849 (3)
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-2025-37774 | 7.8 HIGH | slab: ensure slab->obj_exts is clear in a newly allocated slab page |
| CVE-2025-37789 | 7.8 HIGH | net: openvswitch: fix nested key length validation in the set() action |
| 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-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-2025-37763 | 7.8 HIGH | drm/imagination: take paired job reference |
| CVE-2025-23141 | 7.8 HIGH | KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses |
Showing top 20 of 245 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2022-49849
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