igc: fix potential skb leak in igc_fpe_xmit_smd_frame()

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Summary

CVECVE-2026-64110
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 16:17:52 UTC
Updated2026-07-19 16:17:52 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: igc: fix potential skb leak in igc_fpe_xmit_smd_frame() When igc_fpe_init_tx_descriptor() fails, no one takes care of an allocated skb, leaking it. [1] Use dev_kfree_skb_any() on failure. Tested on an I226 adapter with the following command, while injecting faults in igc_fpe_init_tx_descriptor() to trigger the error path. # ethtool --set-mm $DEV verify-enabled on tx-enabled on pmac-enabled on [1] unreferenced object 0xffff888113c6cdc0 (size 224): ... backtrace (crc be3d3fda): kmem_cache_alloc_node_noprof+0x3b1/0x410 __alloc_skb+0xde/0x830 igc_fpe_xmit_smd_frame.isra.0+0xad/0x1b0 igc_fpe_send_mpacket+0x37/0x90 ethtool_mmsv_verify_timer+0x15e/0x300

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5422570c0010bb968738f9256eb2bf83e79b4d63 f1bafd35f11b3aca1c7bb38da173b8787364a04c git Not specified
CNA Linux Linux affected 5422570c0010bb968738f9256eb2bf83e79b4d63 3ebf056556138e74c640e6dc2b3848abd398b460 git Not specified
CNA Linux Linux affected 5422570c0010bb968738f9256eb2bf83e79b4d63 e935c37b8a94bb256fada6395a5d05e1c0c6bdaf git Not specified
CNA Linux Linux affected 6.16 Not specified
CNA Linux Linux unaffected 6.16 semver Not specified
CNA Linux Linux unaffected 6.18.34 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.11 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e935c37b8a94bb256fada6395a5d05e1c0c6bdaf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ebf056556138e74c640e6dc2b3848abd398b460 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f1bafd35f11b3aca1c7bb38da173b8787364a04c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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