CVE-2026-72017
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:
net: macb: drop in-flight Tx SKBs on close
The MACB driver has since forever leaked the outgoing SKBs that
have not yet been marked as completed. They live in queue->tx_skb
which gets freed without remorse nor checking.
macb_free_consistent() gets called in a few codepaths, but only close will
trigger the added expressions. In macb_open() and macb_alloc_consistent()
failure cases, queues' tx_skb just got allocated and are empty.
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.
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
3 change records found show changes
CVE Modified by kernel.org
8/23/2026 9:16:37 AM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","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":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","versionType":"semver","status":"unaffected"},{"version":"6.1.184","lessThanOrEqual":"6.1.*","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":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/17/2026 2:17:59 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","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":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc3","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","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":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
New CVE Received from kernel.org
8/15/2026 2:21:00 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
net: macb: drop in-flight Tx SKBs on close
The MACB driver has since forever leaked the outgoing SKBs that
have not yet been marked as completed. They live in queue->tx_skb
which gets freed without remorse nor checking.
macb_free_consistent() gets called in a few codepaths, but only close will
trigger the added expressions. In macb_open() and macb_alloc_consistent()
failure cases, queues' tx_skb just got allocated and are empty.
Added
Reference
https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244
Added
Reference
https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4
Added
Reference
https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2
Added
Reference
https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955
Added
Reference
https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"6124bd785073659c99385094657b77382ebce11b","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"26b131b2d5b55a81ef6182769d28105a870c0eb2","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"109241d9880488aafd8e104832b4d4859ad57244","versionType":"git","status":"affected"},{"version":"89e5785fc8a6b9eafd37f2318a9a76d479c796be","lessThan":"27f575836cfebbf872dec020428742b10650a955","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.20","status":"affected"},{"version":"0","lessThan":"2.6.20","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":"6.18.40","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc3","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-72017 NVD
Published Date: 08/15/2026 NVD
Last Modified: 08/23/2026
Source: kernel.org
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