CVE-2022-49381— jffs2: fix memory leak in jffs2_do_fill_super
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e631ddba588783edd521c5a89f7b2902772fb691< 4ba7bbeab8009faf3a726e565d98816593ddd5b0 | affected |
e631ddba588783edd521c5a89f7b2902772fb691< 4da8763a3d2b684c773b72ed80fad40bc264bc40 | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< 28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2 | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< d3a4fff1e7e408c32649030daa7c2c42a7e19a95 | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< 3252d327f977b14663a10967f3b0930d6c325687 | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< ecc53e58596542791e82eff00702f8af7a313f70 | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab | affected | ||
e631ddba588783edd521c5a89f7b2902772fb691< 69295267c481545f636b69ff341b8db75aa136b9 | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2022-49381
Vulnerability Information
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Vulnerability Title
jffs2: fix memory leak in jffs2_do_fill_super
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_fill_super If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0 [<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffff858579ba>] kmalloc_order+0xda/0x110 [<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130 [<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0 [<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.
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jffs2_do_fill_super函数在jffs2_iget或d_make_root失败时未释放内存，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
II. Public POCs for CVE-2022-49381
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49381 (9)
Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total
| CVE-2022-49561 | 9.8 CRITICAL | netfilter: conntrack: re-fetch conntrack after insertion |
| CVE-2022-49149 | 9.8 CRITICAL | rxrpc: Fix call timer start racing with call destruction |
| CVE-2022-49407 | 9.8 CRITICAL | dlm: fix plock invalid read |
| CVE-2022-49356 | 9.8 CRITICAL | SUNRPC: Trap RDMA segment overflows |
| CVE-2022-49362 | 9.8 CRITICAL | NFSD: Fix potential use-after-free in nfsd_file_put() |
| CVE-2022-49280 | 9.8 CRITICAL | NFSD: prevent underflow in nfssvc_decode_writeargs() |
| CVE-2022-49260 | 9.8 CRITICAL | crypto: hisilicon/sec - fix the aead software fallback for engine |
| CVE-2022-49418 | 9.8 CRITICAL | NFSv4: Fix free of uninitialized nfs4_label on referral lookup. |
| CVE-2022-49201 | 9.8 CRITICAL | ibmvnic: fix race between xmit and reset |
| CVE-2022-49194 | 9.8 CRITICAL | net: bcmgenet: Use stronger register read/writes to assure ordering |
| CVE-2022-49093 | 9.8 CRITICAL | skbuff: fix coalescing for page_pool fragment recycling |
| CVE-2022-49094 | 9.8 CRITICAL | net/tls: fix slab-out-of-bounds bug in decrypt_internal |
| CVE-2022-49058 | 9.1 CRITICAL | cifs: potential buffer overflow in handling symlinks |
| CVE-2022-49416 | 8.8 HIGH | wifi: mac80211: fix use-after-free in chanctx code |
| CVE-2022-49535 | 8.8 HIGH | scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI |
| CVE-2022-49238 | 8.8 HIGH | ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855 |
| CVE-2022-49519 | 8.8 HIGH | ath10k: skip ath10k_halt during suspend for driver state RESTARTING |
| CVE-2022-49138 | 8.8 HIGH | Bluetooth: hci_event: Ignore multiple conn complete events |
| CVE-2022-49471 | 8.8 HIGH | rtw89: cfo: check mac_id to avoid out-of-bounds |
| CVE-2022-49159 | 8.8 HIGH | scsi: qla2xxx: Implement ref count for SRB |
Showing top 20 of 706 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- 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 - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- 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 - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
V. Comments for CVE-2022-49381
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