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CVE-2026-93262— md/raid5-ppl: fix use-after-free in ppl_do_flush()

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，以下漏洞已得到修复： md/raid5-ppl：修复 ppl_do_flush() 中的释放后使用（use-after-free）漏洞 ppl_do_flush() 中的循环在调用 ppl_io_unit_finished() 之后继续迭代，访问了 io->pending_flushes，从而导致释放后使用。 添加一个 break 语句，以便在 io 被释放后停止循环。

CVSS 7.8 · High EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< cf01f9413565e86673baf927291a088b6975692b affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< e7505842f1329ece90cb9ea0db87772aeca44052 affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< b5123bf667ac29ddd8106f9ca7cc01316513ae66 affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< e77c80670f2c2bf491da9b173931e1da4677c23a affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< 8914c3d40870f16429a326e97e4016bedc6ede4c affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< 455b56209f9615c3902dcc398dd867abb5ade3ab affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< fcf21df7d3c50c8ebeb0757df5d21b02dcae4218 affected
1532d9e87e8b2377f12929f9e40724d5fbe6ecc5< 371f7a1b392edc8b7cf449cc7713179b588f2d0e affected
… +10 more rows
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I. Basic Information for CVE-2026-93262

Vulnerability Information
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Vulnerability Title
md/raid5-ppl: fix use-after-free in ppl_do_flush()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5-ppl: fix use-after-free in ppl_do_flush() The loop in ppl_do_flush() continues iterating after calling ppl_io_unit_finished(), touching io->pending_flushes and leading to a use-after-free. Add a break statement to stop the loop once io is freed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 ~ cf01f9413565e86673baf927291a088b6975692b -
Linux Linux 4.16 -

II. Public POCs for CVE-2026-93262

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III. Intelligence Information for CVE-2026-93262

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Patches & Fixes for CVE-2026-93262 (8)

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-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
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-2026-93224 8.1 HIGH svcrdma: Fix unmatched rn_unregister on failed accept

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-93262

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