CVE-2026-68192
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: make release_scratchbuffers idempotent
brcmf_pcie_release_scratchbuffers() frees the shared.scratch and
shared.ringupd DMA buffers with dma_free_coherent() but does not clear
the pointers afterwards, unlike the sibling release_ringbuffers() which
NULLs commonrings/flowrings/idxbuf on release.
Both the bus_reset .reset callback (brcmf_pcie_reset) and
brcmf_pcie_remove() call release_scratchbuffers. When reset teardown
has run before removal, remove's own teardown would call
dma_free_coherent() a second time on the already-freed DMA allocation.
NULL the pointers after free, matching release_ringbuffers(), so a later
release observes that the allocation has already been released. This
patch makes repeated sequential release safe; the reset-work lifetime is
handled separately by the following patch.
This issue was found by an in-house static analysis tool.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:35 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/382ee00b2d1e31869ae576a60d3fbe7a2153512f
Added
Reference
https://git.kernel.org/stable/c/739b686aecdb14a6065300ea53401f043e51fd22
Added
Reference
https://git.kernel.org/stable/c/81c58a206d1deee01f4c29236d4154c0872f2a38
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"b7d1d8cb1bdca56aecebacd2896615da0acc126a","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"5a045c2f0fbf029873d2295178fa0785ade35af0","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"044fca8f45ba9ab6ca526163155234cf88287ff5","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"0ca80328df23f851c86866720d4977783c919ee6","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"538c51e9d124cf656f2dd0c0394a8545efc7102d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2521 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"81c58a206d1deee01f4c29236d4154c0872f2a38","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"382ee00b2d1e31869ae576a60d3fbe7a2153512f","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"739b686aecdb14a6065300ea53401f043e51fd22","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"b7d1d8cb1bdca56aecebacd2896615da0acc126a","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"5a045c2f0fbf029873d2295178fa0785ade35af0","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"044fca8f45ba9ab6ca526163155234cf88287ff5","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"0ca80328df23f851c86866720d4977783c919ee6","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"538c51e9d124cf656f2dd0c0394a8545efc7102d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"ve
CVE Modified by kernel.org
8/17/2026 1:18:21 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"b7d1d8cb1bdca56aecebacd2896615da0acc126a","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"5a045c2f0fbf029873d2295178fa0785ade35af0","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"044fca8f45ba9ab6ca526163155234cf88287ff5","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"0ca80328df23f851c86866720d4977783c919ee6","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"538c51e9d124cf656f2dd0c0394a8545efc7102d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"b7d1d8cb1bdca56aecebacd2896615da0acc126a","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"5a045c2f0fbf029873d2295178fa0785ade35af0","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"044fca8f45ba9ab6ca526163155234cf88287ff5","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"0ca80328df23f851c86866720d4977783c919ee6","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"538c51e9d124cf656f2dd0c0394a8545efc7102d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:23 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
New CVE Received from kernel.org
8/10/2026 9:20:06 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: make release_scratchbuffers idempotent
brcmf_pcie_release_scratchbuffers() frees the shared.scratch and
shared.ringupd DMA buffers with dma_free_coherent() but does not clear
the pointers afterwards, unlike the sibling release_ringbuffers() which
NULLs commonrings/flowrings/idxbuf on release.
Both the bus_reset .reset callback (brcmf_pcie_reset) and
brcmf_pcie_remove() call release_scratchbuffers. When reset teardown
has run before removal, remove's own teardown would call
dma_free_coherent() a second time on the already-freed DMA allocation.
NULL the pointers after free, matching release_ringbuffers(), so a later
release observes that the allocation has already been released. This
patch makes repeated sequential release safe; the reset-work lifetime is
handled separately by the following patch.
This issue was found by an in-house static analysis tool.
Added
Reference
https://git.kernel.org/stable/c/044fca8f45ba9ab6ca526163155234cf88287ff5
Added
Reference
https://git.kernel.org/stable/c/0ca80328df23f851c86866720d4977783c919ee6
Added
Reference
https://git.kernel.org/stable/c/538c51e9d124cf656f2dd0c0394a8545efc7102d
Added
Reference
https://git.kernel.org/stable/c/5a045c2f0fbf029873d2295178fa0785ade35af0
Added
Reference
https://git.kernel.org/stable/c/b7d1d8cb1bdca56aecebacd2896615da0acc126a
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"b7d1d8cb1bdca56aecebacd2896615da0acc126a","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"5a045c2f0fbf029873d2295178fa0785ade35af0","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"044fca8f45ba9ab6ca526163155234cf88287ff5","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"0ca80328df23f851c86866720d4977783c919ee6","versionType":"git","status":"affected"},{"version":"4684997d9eea29380000e062755aa6d368d789a3","lessThan":"538c51e9d124cf656f2dd0c0394a8545efc7102d","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68192 NVD
Published Date: 08/10/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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