CVE-2025-40348— Linux kernel 安全漏洞
Possible ATT&CK Techniques 1AI
T1047 · Windows Management InstrumentationAffected Version Matrix 5
| ベンダー | プロダクト | Version Range | ステータス |
|---|---|---|---|
| Linux | Linux | 715b6a5b41dae39baeaa40d3386b548bb278b9c2< c7af5300d78460fc5037ddc77113ba3dbfe77dc0 | affected |
07e38a54cabd9b4de7ceb7f075f29ffa463e458a< 7c34feda6a9a203c9744281f1b6671b7dad2012d | affected | ||
f7381b9116407ba2a429977c80ff8df953ea9354< 6ed8bfd24ce1cb31742b09a3eb557cd008533eec | affected | ||
6.12.54< 6.12.56 | affected | ||
6.17.4< 6.17.6 | affected |
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I. CVE-2025-40348の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
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脆弱性タイトル
slab: Avoid race on slab->obj_exts in alloc_slab_obj_exts
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: slab: Avoid race on slab->obj_exts in alloc_slab_obj_exts If two competing threads enter alloc_slab_obj_exts() and one of them fails to allocate the object extension vector, it might override the valid slab->obj_exts allocated by the other thread with OBJEXTS_ALLOC_FAIL. This will cause the thread that lost this race and expects a valid pointer to dereference a NULL pointer later on. Update slab->obj_exts atomically using cmpxchg() to avoid slab->obj_exts overrides by racing threads. Thanks for Vlastimil and Suren's help with debugging.
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alloc_slab_obj_exts中存在竞争条件，可能导致空指针取消引用。
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
II. CVE-2025-40348の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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CVE-2025-40348 其他参考 (3)
Same Patch Batch · Linux · 2025-12-16 · 157 CVEs total
| CVE-2025-68263 | 9.8 CRITICAL | ksmbd: ipc: fix use-after-free in ipc_msg_send_request |
| CVE-2025-68260 | rust_binder: fix race condition on death_list | |
| CVE-2025-68251 | erofs: avoid infinite loops due to corrupted subpage compact indexes | |
| CVE-2025-68252 | misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup | |
| CVE-2025-68253 | mm: don't spin in add_stack_record when gfp flags don't allow | |
| CVE-2025-68254 | staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing | |
| CVE-2025-68255 | staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing | |
| CVE-2025-68256 | staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser | |
| CVE-2025-68257 | comedi: check device's attached status in compat ioctls | |
| CVE-2025-68258 | comedi: multiq3: sanitize config options in multiq3_attach() | |
| CVE-2025-68259 | KVM: SVM: Don't skip unrelated instruction if INT3/INTO is replaced | |
| CVE-2025-68265 | nvme: fix admin request_queue lifetime | |
| CVE-2025-68283 | libceph: replace BUG_ON with bounds check for map->max_osd | |
| CVE-2025-68282 | usb: gadget: udc: fix use-after-free in usb_gadget_state_work | |
| CVE-2025-68281 | ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list | |
| CVE-2025-68266 | bfs: Reconstruct file type when loading from disk | |
| CVE-2025-68262 | crypto: zstd - fix double-free in per-CPU stream cleanup | |
| CVE-2025-68261 | ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock() | |
| CVE-2025-68250 | hung_task: fix warnings caused by unaligned lock pointers | |
| CVE-2025-68264 | ext4: refresh inline data size before write operations |
Showing 20 of 157 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Linux
- CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected
同じベンダー: Linux
- CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected
V. CVE-2025-40348へのコメント
まだコメントはありません