CVE-2026-53092— BPF漏洞：修复源寄存器等于目标寄存器时的链接寄存器delta跟踪问题
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I. CVE-2026-53092の基本情報
脆弱性情報
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脆弱性タイトル
bpf: Fix linked reg delta tracking when src_reg == dst_reg
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix linked reg delta tracking when src_reg == dst_reg Consider the case of rX += rX where src_reg and dst_reg are pointers to the same bpf_reg_state in adjust_reg_min_max_vals(). The latter first modifies the dst_reg in-place, and later in the delta tracking, the subsequent is_reg_const(src_reg)/reg_const_value(src_reg) reads the post-{add,sub} value instead of the original source. This is problematic since it sets an incorrect delta, which sync_linked_regs() then propagates to linked registers, thus creating a verifier-vs-runtime mismatch. Fix it by just skipping this corner case.
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)
影響を受ける製品
II. CVE-2026-53092の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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CVE-2026-53092 其他参考 (3)
Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total
| CVE-2026-52980 | sched/fair: Clear rel_deadline when initializing forked entities | |
| CVE-2026-52993 | tipc: fix double-free in tipc_buf_append() | |
| CVE-2026-52991 | sched/psi: fix race between file release and pressure write | |
| CVE-2026-52990 | fsnotify: fix inode reference leak in fsnotify_recalc_mask() | |
| CVE-2026-52988 | netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase | |
| CVE-2026-52989 | nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers | |
| CVE-2026-52987 | drm/amdgpu: avoid double drm_exec_fini() in userq validate | |
| CVE-2026-52986 | netfilter: nf_conntrack_sip: don't use simple_strtoul | |
| CVE-2026-52985 | netdevsim: zero initialize struct iphdr in dummy sk_buff | |
| CVE-2026-52984 | net/sched: netem: fix queue limit check to include reordered packets | |
| CVE-2026-52982 | net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit() | |
| CVE-2026-52983 | net: airoha: fix BQL imbalance in TX path | |
| CVE-2026-52981 | neigh: let neigh_xmit take skb ownership | |
| CVE-2026-52979 | net: psp: check for device unregister when creating assoc | |
| CVE-2026-52968 | KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic | |
| CVE-2026-52972 | crypto: af_alg - Cap AEAD AD length to 0x80000000 | |
| CVE-2026-52970 | netfilter: nft_ct: fix missing expect put in obj eval | |
| CVE-2026-52969 | KVM: Reject wrapped offset in kvm_reset_dirty_gfn() | |
| CVE-2026-52971 | net: ena: PHC: Fix potential use-after-free in get_timestamp | |
| CVE-2026-52967 | smb/client: fix possible infinite loop and oob read in symlink_data() |
Showing 20 of 219 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Linux
- CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault - CVE-2026-53276
Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer - CVE-2026-53275
ipv6: mcast: Fix use-after-free when processing MLD queries - CVE-2026-53274
net/smc: fix sleep-inside-lock in __smc_setsockopt() causing - CVE-2026-53273
tee: optee: prevent use-after-free when the client exits bef
同じベンダー: Linux
- CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault - CVE-2026-53276
Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer - CVE-2026-53275
ipv6: mcast: Fix use-after-free when processing MLD queries - CVE-2026-53274
net/smc: fix sleep-inside-lock in __smc_setsockopt() causing - CVE-2026-53273
tee: optee: prevent use-after-free when the client exits bef
V. CVE-2026-53092へのコメント
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