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CVE-2022-49388— ubi: ubi_create_volume: Fix use-after-free when volume creation failed

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ubi_create_volume函数在卷创建失败时未正确处理eba_tbl，导致释放后重用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9 affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< abb67043060f2bf4c03d7c3debb9ae980e2b6db3 affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 8302620aeb940f386817321d272b12411ae7d39f affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 6d8d3f68cbecfd31925796f0fb668eb21ab06734 affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 5ff2514e4fb55dcf3d88294686040ca73ea0c1a2 affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< e27ecf325e51abd06aaefba57a6322a46fa4178b affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 1174ab8ba36a48025b68b5ff1085000b1e510217 affected
493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec< 8c03a1c21d72210f81cb369cc528e3fde4b45411 affected
… +10 more rows
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I. Basic Information for CVE-2022-49388

Vulnerability Information
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Vulnerability Title
ubi: ubi_create_volume: Fix use-after-free when volume creation failed
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ubi: ubi_create_volume: Fix use-after-free when volume creation failed There is an use-after-free problem for 'eba_tbl' in ubi_create_volume()'s error handling path: ubi_eba_replace_table(vol, eba_tbl) vol->eba_tbl = tbl out_mapping: ubi_eba_destroy_table(eba_tbl) // Free 'eba_tbl' out_unlock: put_device(&vol->dev) vol_release kfree(tbl->entries) // UAF Fix it by removing redundant 'eba_tbl' releasing. Fetch a reproducer in [Link].
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ubi_create_volume函数在卷创建失败时未正确处理eba_tbl，导致释放后重用。
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 493cfaeaa0c9bc0c79ce5751193d49fdac9aaaec ~ 25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9 -
Linux Linux 4.12 -

II. Public POCs for CVE-2022-49388

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III. Intelligence Information for CVE-2022-49388

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Patches & Fixes for CVE-2022-49388 (8)

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-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
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-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49500 8.8 HIGH wl1251: dynamically allocate memory used for DMA
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49114 8.8 HIGH scsi: libfc: Fix use after free in fc_exch_abts_resp()
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49471 8.8 HIGH rtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-49111 8.8 HIGH Bluetooth: Fix use after free in hci_send_acl
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49388

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