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CVE-2026-97485— omfs: handle set_blocksize failures

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已解决以下漏洞： omfs: 处理 set_blocksize 失败的情况 omfs 使用 buffer_heads，但 buffer_heads 对大于 PAGE_SIZE 的块大小支持不佳。如果不进行处理，在挂载文件系统时，将在首次调用 时触发 folio_set_bh 中的以下断言错误：

AI Predicted 5.5 Difficulty: Moderate EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1564.008 · Email Hiding Rules

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 555e3775ced1d05203934fc6529bbf0560dd8733< a2a3592ebf3920dd6f2b754d2bb7361f54764e84 affected
555e3775ced1d05203934fc6529bbf0560dd8733< d81e1e9bd1df5948c699cb5aec984acdef5b2681 affected
555e3775ced1d05203934fc6529bbf0560dd8733< 120e0db84a69f18e51ba9ae2d036df3a052a33e1 affected
555e3775ced1d05203934fc6529bbf0560dd8733< 29186cd17bb5f501a6ae831dac4fabf637879982 affected
555e3775ced1d05203934fc6529bbf0560dd8733< 61ffc31cd8642d7a950b6831720629c8331365f6 affected
555e3775ced1d05203934fc6529bbf0560dd8733< fd4d6593c51253c79be422d6ae42e318250e20a7 affected
555e3775ced1d05203934fc6529bbf0560dd8733< 18c3d6fcb557f920c9143711497625e70153874c affected
2.6.27 affected
… +8 more rows
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I. Basic Information for CVE-2026-97485

Vulnerability Information
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Vulnerability Title
omfs: handle set_blocksize failures
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: omfs: handle set_blocksize failures omfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 555e3775ced1d05203934fc6529bbf0560dd8733 ~ a2a3592ebf3920dd6f2b754d2bb7361f54764e84 -
Linux Linux 2.6.27 -

II. Public POCs for CVE-2026-97485

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III. Intelligence Information for CVE-2026-97485

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Patches & Fixes for CVE-2026-97485 (7)

Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total

CVE-2026-93207 9.8 CRITICAL SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry
CVE-2026-97413 9.8 CRITICAL RDMA/rtrs-srv: Fix integer underflow in process_read and process_write
CVE-2026-93228 9.1 CRITICAL svcrdma: Reject Write/Reply chunks with segcount 0
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97433 8.2 HIGH nvme: validate FDP configuration descriptor sizes
CVE-2026-93221 8.1 HIGH nfsd: convert nfsd_net boolean flags to unsigned long flags word
CVE-2026-93786 8.1 HIGH ksmbd: preserve VFS inherited POSIX ACL mask

Showing top 20 of 234 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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