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CVE-2023-54284— media: av7110: prevent underflow in write_ts_to_decoder()

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，该漏洞源于未检查buf[4]值，可能导致下溢。

CVSS 7.1 · High EPSS 0.16% · P4

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 6680af5be9f08d830567e9118f76d3e64684db8f affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 6606e2404ee9e20a3ae5b42fc3660d41b739ed3e affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 620b983589e0223876bf1463b01100a9c67b56ba affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 86ba65e5357bfbb6c082f68b265a292ee1bdde1d affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< ca4ce92e3ec9fd3c7c936b912b95c53331d5159c affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 423350af9e27f005611bd881b1df2cab66de943d affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 77eeb4732135c18c2fdfab80839645b393f3e774 affected
fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf< 7b93ab60fe9ed04be0ff155bc30ad39dea23e22b affected
… +12 more rows
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I. Basic Information for CVE-2023-54284

Vulnerability Information
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Vulnerability Title
media: av7110: prevent underflow in write_ts_to_decoder()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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，该漏洞源于未检查buf[4]值，可能导致下溢。
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 fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf ~ 6680af5be9f08d830567e9118f76d3e64684db8f -
Linux Linux 2.6.31 -

II. Public POCs for CVE-2023-54284

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III. Intelligence Information for CVE-2023-54284

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Other References for CVE-2023-54284 (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-2023-54284

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