{"api_version":"1","generated_at":"2026-06-25T04:53:16+00:00","cve":"CVE-2026-53008","urls":{"html":"https://cve.report/CVE-2026-53008","api":"https://cve.report/api/cve/CVE-2026-53008.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53008","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53008"},"summary":{"title":"ice: fix race condition in TX timestamp ring cleanup","description":"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","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:12","updated_at":"2026-06-24 17:17:12"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398","name":"https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda","name":"https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53008","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53008","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 097409d20465723283632515df73038a4a853eda git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 7c72ec18c2a4111204c2e915f8e4f6d849ce9398 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","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"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"097409d20465723283632515df73038a4a853eda","status":"affected","version":"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5","versionType":"git"},{"lessThan":"7c72ec18c2a4111204c2e915f8e4f6d849ce9398","status":"affected","version":"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","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"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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"}],"providerMetadata":{"dateUpdated":"2026-06-24T16:29:19.459Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53008","datePublished":"2026-06-24T16:29:19.459Z","dateReserved":"2026-06-09T07:44:35.378Z","dateUpdated":"2026-06-24T16:29:19.459Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:12","lastModifiedDate":"2026-06-24 17:17:12","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53008","Ordinal":"1","Title":"ice: fix race condition in TX timestamp ring cleanup","CVE":"CVE-2026-53008","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53008","Ordinal":"1","NoteData":"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","Type":"Description","Title":"ice: fix race condition in TX timestamp ring cleanup"}]}}}