CVE-2025-39839— batman-adv: fix OOB read/write in network-coding decode
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2df5278b0267c799f3e877e8eeddbb6e93cda0bb< 30fc47248f02b8a14a61df469e1da4704be1a19f | affected |
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< 1e36c6c8dc8023b4bbe9a16e819f9998b9b6a183 | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< 5d334bce9fad58cf328d8fa14ea1fff855819863 | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< dce6c2aa70e94c04c523b375dfcc664d7a0a560a | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< bb37252c9af1cb250f34735ee98f80b46be3cef1 | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< 20080709457bc1e920eb002483d7d981d9b2ac1c | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< a67c6397fcb7e842d3c595243049940970541c48 | affected | ||
2df5278b0267c799f3e877e8eeddbb6e93cda0bb< d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-39839
Vulnerability Information
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Vulnerability Title
batman-adv: fix OOB read/write in network-coding decode
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix OOB read/write in network-coding decode batadv_nc_skb_decode_packet() trusts coded_len and checks only against skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing payload headroom, and the source skb length is not verified, allowing an out-of-bounds read and a small out-of-bounds write. Validate that coded_len fits within the payload area of both destination and source sk_buffs before XORing.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于未验证coded_len长度，可能导致越界读取和越界写入。
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
II. Public POCs for CVE-2025-39839
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-09-19 · 30 CVEs total
| CVE-2025-39851 | vxlan: Fix NPD when refreshing an FDB entry with a nexthop object | |
| CVE-2025-39837 | platform/x86: asus-wmi: Fix racy registrations | |
| CVE-2025-39838 | cifs: prevent NULL pointer dereference in UTF16 conversion | |
| CVE-2025-39840 | audit: fix out-of-bounds read in audit_compare_dname_path() | |
| CVE-2025-39841 | scsi: lpfc: Fix buffer free/clear order in deferred receive path | |
| CVE-2025-39842 | ocfs2: prevent release journal inode after journal shutdown | |
| CVE-2025-39844 | mm: move page table sync declarations to linux/pgtable.h | |
| CVE-2025-39843 | mm: slub: avoid wake up kswapd in set_track_prepare | |
| CVE-2025-39845 | x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() | |
| CVE-2025-39846 | pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region() | |
| CVE-2025-39847 | ppp: fix memory leak in pad_compress_skb | |
| CVE-2025-39848 | ax25: properly unshare skbs in ax25_kiss_rcv() | |
| CVE-2025-39849 | wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() | |
| CVE-2025-39850 | vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects | |
| CVE-2025-39852 | net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 | |
| CVE-2025-39866 | fs: writeback: fix use-after-free in __mark_inode_dirty() | |
| CVE-2025-39853 | i40e: Fix potential invalid access when MAC list is empty | |
| CVE-2025-39854 | ice: fix NULL access of tx->in_use in ice_ll_ts_intr | |
| CVE-2025-39856 | net: ethernet: ti: am65-cpsw-nuss: Fix null pointer dereference for ndev | |
| CVE-2025-39855 | ice: fix NULL access of tx->in_use in ice_ptp_ts_irq |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2025-39839
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