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CVE-2026-68151— binfmt_elf_fdpic: only honour the first PT_INTERP

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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于binfmt_elf_fdpic程序头扫描对多个PT_INTERP处理不当，导致覆盖解释器名称和引用并造成内存泄漏，攻击者可通过特制二进制文件触发，导致系统文件无法写入。

AI Predicted 7.8 Difficulty: Easy EPSS 0.18% · P8

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 9854538349aaf6fb88ed33b56987954ac1716151 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3c31397b0a75310217f1f2f3c7bdfd8af67aec4c affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 849a7bd9d266e43a457db5c6b322600f916a2127 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e4563e07ef5c938d5332c5c44721db976f214bc6 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 21eaf5594a33d16343a011c752624099c30e918f affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 89b9121c3b0162655fc2f190b714ae64f1aa8cae affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 69ecc199880bf7e8d06224c82dc411d18f9285f8 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3349ef6a366a61d631f6a263d12cea240957719d affected
… +10 more rows
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I. Basic Information for CVE-2026-68151

Vulnerability Information
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Vulnerability Title
binfmt_elf_fdpic: only honour the first PT_INTERP
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: binfmt_elf_fdpic: only honour the first PT_INTERP The program header scan handles PT_INTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PT_INTERP runs the case again and overwrites both interpreter_name and interpreter. The previous name allocation leaks and so does the previous interpreter reference, along with the write denial open_exec() took on it. The denial is never released, so the file stays unwritable for as long as the system runs. An unprivileged caller reaches this with a crafted binary and repeats it at will. binfmt_elf stops at the first PT_INTERP. Do the same here. The flaw dates back to the driver's introduction in the pre-git history tree introduced in v2.6.11 by 91808d6ebe39 ("[PATCH] FRV: Add FDPIC ELF binary format driver").
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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于binfmt_elf_fdpic程序头扫描对多个PT_INTERP处理不当，导致覆盖解释器名称和引用并造成内存泄漏，攻击者可通过特制二进制文件触发，导致系统文件无法写入。
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 9854538349aaf6fb88ed33b56987954ac1716151 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-68151

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III. Intelligence Information for CVE-2026-68151

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Patches & Fixes for CVE-2026-68151 (7)

Same Patch Batch · Linux · 2026-08-10 · 344 CVEs total

CVE-2026-68159 9.8 CRITICAL libceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
CVE-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68161 9.8 CRITICAL sctp: close UDP tunnel sockets during netns teardown
CVE-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
CVE-2026-68160 9.8 CRITICAL ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-68127 9.8 CRITICAL ila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-68144 9.8 CRITICAL phonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-68137 9.8 CRITICAL net/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68136 9.8 CRITICAL net: gro: fix double aggregation of flush-marked skbs
CVE-2026-68154 9.8 CRITICAL libceph: reject zero bucket types in crush_decode
CVE-2026-68158 9.8 CRITICAL libceph: Fix multiplication overflow in decode_new_up_state_weight()
CVE-2026-68156 9.8 CRITICAL libceph: refresh auth->authorizer_buf{,_len} after authorizer update
CVE-2026-68124 9.6 CRITICAL mctp: serial: handle zero-length frames to prevent rx buffer overflow

Showing top 20 of 344 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-68151

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