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CVE-2022-50840— scsi: snic: Fix possible UAF in snic_tgt_create()

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，该漏洞源于释放后重用，可能导致内存损坏。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.28% · P20

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ff affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< 3772319e40527e6a5f2ec1d729e01f271d818f5c affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< 3007f96ca20c848d0b1b052df6d2cb5ae5586e78 affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< 6866154c23fba40888ad6d554cccd4bf2edb755e affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< ad27f74e901fc48729733c88818e6b96c813057d affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< 1895e908b3ae66a5312fd1b2cdda2da82993dca7 affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< c7f0f8dab1ae5def57c1a8a9cafd6fabe1dc27cc affected
c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa< 4141cd9e8b3379aea52a85d2c35f6eaf26d14e86 affected
… +12 more rows
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I. Basic Information for CVE-2022-50840

Vulnerability Information
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Vulnerability Title
scsi: snic: Fix possible UAF in snic_tgt_create()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: snic: Fix possible UAF in snic_tgt_create() Smatch reports a warning as follows: drivers/scsi/snic/snic_disc.c:307 snic_tgt_create() warn: '&tgt->list' not removed from list If device_add() fails in snic_tgt_create(), tgt will be freed, but tgt->list will not be removed from snic->disc.tgt_list, then list traversal may cause UAF. Remove from snic->disc.tgt_list before free().
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，该漏洞源于释放后重用，可能导致内存损坏。
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 c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa ~ f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ff -
Linux Linux 4.2 -

II. Public POCs for CVE-2022-50840

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III. Intelligence Information for CVE-2022-50840

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Other References for CVE-2022-50840 (9)

Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total

CVE-2023-54184 9.8 CRITICAL scsi: target: iscsit: Free cmds before session free
CVE-2023-54223 9.8 CRITICAL net/mlx5e: xsk: Fix invalid buffer access for legacy rq
CVE-2023-54237 9.8 CRITICAL net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()
CVE-2023-54257 9.8 CRITICAL net: macb: fix a memory corruption in extended buffer descriptor mode
CVE-2023-54258 9.8 CRITICAL cifs: fix potential oops in cifs_oplock_break
CVE-2023-54269 9.8 CRITICAL SUNRPC: double free xprt_ctxt while still in use
CVE-2023-54280 9.8 CRITICAL cifs: fix potential race when tree connecting ipc
CVE-2023-54292 9.8 CRITICAL RDMA/irdma: Fix data race on CQP request done
CVE-2023-54203 9.1 CRITICAL ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
CVE-2022-50880 8.8 HIGH wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
CVE-2023-54262 8.8 HIGH net/mlx5e: Don't clone flow post action attributes second time
CVE-2023-54214 8.8 HIGH Bluetooth: L2CAP: Fix potential user-after-free
CVE-2023-54162 8.8 HIGH ksmbd: fix possible memory leak in smb2_lock()
CVE-2023-54318 8.8 HIGH net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
CVE-2023-54250 8.2 HIGH ksmbd: avoid out of bounds access in decode_preauth_ctxt()
CVE-2023-54164 8.0 HIGH Bluetooth: ISO: fix iso_conn related locking and validity issues
CVE-2023-54206 7.8 HIGH net/sched: flower: fix filter idr initialization
CVE-2023-54202 7.8 HIGH drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
CVE-2023-54210 7.8 HIGH Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
CVE-2023-54243 7.8 HIGH netfilter: ebtables: fix table blob use-after-free

Showing top 20 of 244 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50840

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