CVE-2026-43273— ceph: supply snapshot context in ceph_zero_partial_object()
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ad7a60de882aca31afb58721db166f7e77afcd92< 36673344b41c31fb502dd0d0113cec1aa96f581e | affected |
ad7a60de882aca31afb58721db166f7e77afcd92< 5788b742007f53406049bef917833a71ddd43f60 | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< 757873abfc8ea38592582180aed0f57f0f0cb07a | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< 9efa154609cdb658f51c7d76b30a09f7e6485250 | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< 531a76c5a2e44264cee8a70121e63eb28c1ba728 | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< 69e59a87bab0ea31ab2a584fc65e12dafacf8953 | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< 4097e70fc543cca72982854108a32f6ae924e727 | affected | ||
ad7a60de882aca31afb58721db166f7e77afcd92< f16bd3fa74a2084ee7e16a8a2be7e7399b970907 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-43273
Vulnerability Information
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Vulnerability Title
ceph: supply snapshot context in ceph_zero_partial_object()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ceph: supply snapshot context in ceph_zero_partial_object() The ceph_zero_partial_object function was missing proper snapshot context for its OSD write operations, which could lead to data inconsistencies in snapshots. Reproducer: ../src/vstart.sh --new -x --localhost --bluestore ./bin/ceph auth caps client.fs_a mds 'allow rwps fsname=a' mon 'allow r fsname=a' osd 'allow rw tag cephfs data=a' mount -t ceph fs_a@.a=/ /mnt/mycephfs/ -o conf=./ceph.conf dd if=/dev/urandom of=/mnt/mycephfs/foo bs=64K count=1 mkdir /mnt/mycephfs/.snap/snap1 md5sum /mnt/mycephfs/.snap/snap1/foo fallocate -p -o 0 -l 4096 /mnt/mycephfs/foo echo 3 > /proc/sys/vm/drop/caches md5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!
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ceph中ceph_zero_partial_object函数缺少快照上下文，可能导致快照数据不一致。
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
II. Public POCs for CVE-2026-43273
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-43273 (8)
Same Patch Batch · Linux · 2026-05-06 · 224 CVEs total
| CVE-2026-43186 | 9.8 CRITICAL | ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() |
| CVE-2026-43185 | 9.8 CRITICAL | ksmbd: fix signededness bug in smb_direct_prepare_negotiation() |
| CVE-2026-43125 | 9.8 CRITICAL | dlm: validate length in dlm_search_rsb_tree |
| CVE-2026-43208 | 9.8 CRITICAL | net: do not pass flow_id to set_rps_cpu() |
| CVE-2026-43198 | 9.8 CRITICAL | tcp: fix potential race in tcp_v6_syn_recv_sock() |
| CVE-2026-43114 | 9.4 CRITICAL | netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry |
| CVE-2026-43117 | 9.1 CRITICAL | btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file() |
| CVE-2026-43083 | 9.1 CRITICAL | net: ioam6: fix OOB and missing lock |
| CVE-2026-43197 | 9.1 CRITICAL | netconsole: avoid OOB reads, msg is not nul-terminated |
| CVE-2026-43232 | 8.8 HIGH | net: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets |
| CVE-2026-43215 | 8.8 HIGH | cifs: Fix locking usage for tcon fields |
| CVE-2026-43112 | 8.8 HIGH | fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath |
| CVE-2026-43113 | 8.8 HIGH | wifi: wl1251: validate packet IDs before indexing tx_frames |
| CVE-2026-43187 | 8.8 HIGH | xfs: delete attr leaf freemap entries when empty |
| CVE-2026-43110 | 8.8 HIGH | wifi: brcmfmac: validate bsscfg indices in IF events |
| CVE-2026-43283 | 8.8 HIGH | net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle |
| CVE-2026-43176 | 8.8 HIGH | wifi: rtw89: pci: validate release report content before using for RTL8922DE |
| CVE-2026-43249 | 8.8 HIGH | 9p/xen: protect xen_9pfs_front_free against concurrent calls |
| CVE-2026-43158 | 8.8 HIGH | xfs: fix freemap adjustments when adding xattrs to leaf blocks |
| CVE-2026-43172 | 8.8 HIGH | wifi: iwlwifi: fix 22000 series SMEM parsing |
Showing top 20 of 224 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2026-43273
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