{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53008","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.378Z","datePublished":"2026-06-24T16:29:19.459Z","dateUpdated":"2026-06-24T16:29:19.459Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-24T16:29:19.459Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix race condition in TX timestamp ring cleanup\n\nFix a race condition between ice_free_tx_tstamp_ring() and ice_tx_map()\nthat can cause a NULL pointer dereference.\n\nice_free_tx_tstamp_ring currently clears the ICE_TX_FLAGS_TXTIME flag\nafter NULLing the tstamp_ring. This could allow a concurrent ice_tx_map\ncall on another CPU to dereference the tstamp_ring, which could lead to\na NULL pointer dereference.\n\n  CPU A:ice_free_tx_tstamp_ring() | CPU B:ice_tx_map()\n  --------------------------------|---------------------------------\n  tx_ring->tstamp_ring = NULL     |\n                                  | ice_is_txtime_cfg() -> true\n                                  | tstamp_ring = tx_ring->tstamp_ring\n                                  | tstamp_ring->count  // NULL deref!\n  flags &= ~ICE_TX_FLAGS_TXTIME   |\n\nFix by:\n1. Reordering ice_free_tx_tstamp_ring() to clear the flag before\n   NULLing the pointer, with smp_wmb() to ensure proper ordering.\n2. Adding smp_rmb() in ice_tx_map() after the flag check to order the\n   flag read before the pointer read, using READ_ONCE() for the\n   pointer, and adding a NULL check as a safety net.\n3. Converting tx_ring->flags from u8 to DECLARE_BITMAP() and using\n   atomic bitops (set_bit(), clear_bit(), test_bit()) for all flag\n   operations throughout the driver:\n   - ICE_TX_RING_FLAGS_XDP\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG1\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG2\n   - ICE_TX_RING_FLAGS_TXTIME"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice.h","drivers/net/ethernet/intel/ice/ice_dcb_lib.c","drivers/net/ethernet/intel/ice/ice_lib.c","drivers/net/ethernet/intel/ice/ice_txrx.c","drivers/net/ethernet/intel/ice/ice_txrx.h"],"versions":[{"version":"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5","lessThan":"097409d20465723283632515df73038a4a853eda","status":"affected","versionType":"git"},{"version":"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5","lessThan":"7c72ec18c2a4111204c2e915f8e4f6d849ce9398","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice.h","drivers/net/ethernet/intel/ice/ice_dcb_lib.c","drivers/net/ethernet/intel/ice/ice_lib.c","drivers/net/ethernet/intel/ice/ice_txrx.c","drivers/net/ethernet/intel/ice/ice_txrx.h"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda"},{"url":"https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398"}],"title":"ice: fix race condition in TX timestamp ring cleanup","x_generator":{"engine":"bippy-1.2.0"}}}}