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CVE-2026-53039— Linux kernel 安全漏洞

AI Predicted 7.8 Difficulty: Moderate EPSS 0.18% · P7

Affected Version Matrix 18

ベンダープロダクトVersion Rangeステータス
LinuxLinux7909f2bf835376a20d6dbf853eb459a27566eba2< f7e139d7563f6947ad509fb468903941d0bb7dddaffected
7909f2bf835376a20d6dbf853eb459a27566eba2< 22544ddedf381ed5191cfc783aea8d6c936bc201affected
7909f2bf835376a20d6dbf853eb459a27566eba2< 76bd722db0a92b84ccd99e03796a0b6f1ae71c31affected
7909f2bf835376a20d6dbf853eb459a27566eba2< b9ae3942deec4c9e3fa2070521f90910f7490011affected
7909f2bf835376a20d6dbf853eb459a27566eba2< e7c2cb552e6eb85c0f5aefdd7f0f7c3c8591a6a3affected
7909f2bf835376a20d6dbf853eb459a27566eba2< aed87e866d1a321edb9703563c2faa8fec89835daffected
7909f2bf835376a20d6dbf853eb459a27566eba2< 6c5e70409c1961fe1278968f038eaaed6cc1145aaffected
7909f2bf835376a20d6dbf853eb459a27566eba2< 70b672833f4025341c11b22c7f83778a5cd611bcaffected
… +10 more rows
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I. CVE-2026-53039の基本情報

脆弱性情報
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脆弱性タイトル
ocfs2: validate group add input before caching
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate group add input before caching [BUG] OCFS2_IOC_GROUP_ADD can trigger a BUG_ON in ocfs2_set_new_buffer_uptodate(): kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI RIP: 0010:ocfs2_set_new_buffer_uptodate+0x194/0x1e0 fs/ocfs2/uptodate.c:509 Code: ffffe88f 42b9fe4c 89e64889 dfe8b4df Call Trace: ocfs2_group_add+0x3f1/0x1510 fs/ocfs2/resize.c:507 ocfs2_ioctl+0x309/0x6e0 fs/ocfs2/ioctl.c:887 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x197/0x1e0 fs/ioctl.c:583 x64_sys_call+0x1144/0x26a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x93/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7bbfb55a966d [CAUSE] ocfs2_group_add() calls ocfs2_set_new_buffer_uptodate() on a user-controlled group block before ocfs2_verify_group_and_input() validates that block number. That helper is only valid for newly allocated metadata and asserts that the block is not already present in the chosen metadata cache. The code also uses INODE_CACHE(inode) even though the group descriptor belongs to main_bm_inode and later journal accesses use that cache context instead. [FIX] Validate the on-disk group descriptor before caching it, then add it to the metadata cache tracked by INODE_CACHE(main_bm_inode). Keep the validation failure path separate from the later cleanup path so we only remove the buffer from that cache after it has actually been inserted. This keeps the group buffer lifetime consistent across validation, journaling, and cleanup.
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Linux kernel是美国Linux基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ocfs2的文件系统group add操作输入验证不足，在缓存前未对用户控制的group block进行校验，导致ocfs2_set_new_buffer_uptodate函数中的BUG_ON条件被触发。该漏洞可能导致内核崩溃。以下版本受到影响：2.6.25版本及之前版本。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
LinuxLinux 7909f2bf835376a20d6dbf853eb459a27566eba2 ~ f7e139d7563f6947ad509fb468903941d0bb7ddd -
LinuxLinux 2.6.25 -

II. CVE-2026-53039の公開POC

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III. CVE-2026-53039のインテリジェンス情報

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CVE-2026-53039 补丁与修复 (8)

Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total

CVE-2026-529829.8 CRITICALnet: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-530469.8 CRITICALksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-529559.8 CRITICALlibceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-530459.8 CRITICALmemory: tegra124-emc: Fix dll_change check
CVE-2026-530499.8 CRITICALgfs2: add some missing log locking
CVE-2026-530109.8 CRITICALksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-530889.8 CRITICALnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-530069.8 CRITICALipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-530559.8 CRITICALcrypto: hisilicon/sec2 - prevent req used-after-free for sec
CVE-2026-530029.8 CRITICALnetfilter: conntrack: remove sprintf usage
CVE-2026-530869.8 CRITICALnet: bcmgenet: fix racing timeout handler
CVE-2026-529149.8 CRITICALbatman-adv: fix fragment reassembly length accounting
CVE-2026-529939.8 CRITICALtipc: fix double-free in tipc_buf_append()
CVE-2026-529319.8 CRITICALbatman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-529899.8 CRITICALnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-529249.8 CRITICALsctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-529869.8 CRITICALnetfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-529999.1 CRITICALnetfilter: nfnetlink_osf: fix out-of-bounds read on option matching
CVE-2026-529589.1 CRITICALlibceph: Fix potential out-of-bounds access in osdmap_decode()
CVE-2026-530439.1 CRITICALocfs2/dlm: validate qr_numregions in dlm_match_regions()

Showing 20 of 219 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Linux
同じベンダー: Linux

V. CVE-2026-53039へのコメント

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