{"cve":"CVE-2023-52578","nvd":{"published":"2024-03-02T22:15:49.583","modified":"2026-06-17T06:43:04.223","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: use DEV_STATS_INC()\n\nsyzbot/KCSAN reported data-races in br_handle_frame_finish() [1]\nThis function can run from multiple cpus without mutual exclusion.\n\nAdopt SMP safe DEV_STATS_INC() to update dev->stats fields.\n\nHandles updates to dev->stats.tx_dropped while we are at it.\n\n[1]\nBUG: KCSAN: data-race in br_handle_frame_finish / br_handle_frame_finish\n\nread-write to 0xffff8881374b2178 of 8 bytes by interrupt on cpu 1:\nbr_handle_frame_finish+0xd4f/0xef0 net/bridge/br_input.c:189\nbr_nf_hook_thresh+0x1ed/0x220\nbr_nf_pre_routing_finish_ipv6+0x50f/0x540\nNF_HOOK include/linux/netfilter.h:304 [inline]\nbr_nf_pre_routing_ipv6+0x1e3/0x2a0 net/bridge/br_netfilter_ipv6.c:178\nbr_nf_pre_routing+0x526/0xba0 net/bridge/br_netfilter_hooks.c:508\nnf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]\nnf_hook_bridge_pre net/bridge/br_input.c:272 [inline]\nbr_handle_frame+0x4c9/0x940 net/bridge/br_input.c:417\n__netif_receive_skb_core+0xa8a/0x21e0 net/core/dev.c:5417\n__netif_receive_skb_one_core net/core/dev.c:5521 [inline]\n__netif_receive_skb+0x57/0x1b0 net/core/dev.c:5637\nprocess_backlog+0x21f/0x380 net/core/dev.c:5965\n__napi_poll+0x60/0x3b0 net/core/dev.c:6527\nnapi_poll net/core/dev.c:6594 [inline]\nnet_rx_action+0x32b/0x750 net/core/dev.c:6727\n__do_softirq+0xc1/0x265 kernel/softirq.c:553\nrun_ksoftirqd+0x17/0x20 kernel/softirq.c:921\nsmpboot_thread_fn+0x30a/0x4a0 kernel/smpboot.c:164\nkthread+0x1d7/0x210 kernel/kthread.c:388\nret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147\nret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304\n\nread-write to 0xffff8881374b2178 of 8 bytes by interrupt on cpu 0:\nbr_handle_frame_finish+0xd4f/0xef0 net/bridge/br_input.c:189\nbr_nf_hook_thresh+0x1ed/0x220\nbr_nf_pre_routing_finish_ipv6+0x50f/0x540\nNF_HOOK include/linux/netfilter.h:304 [inline]\nbr_nf_pre_routing_ipv6+0x1e3/0x2a0 net/bridge/br_netfilter_ipv6.c:178\nbr_nf_pre_routing+0x526/0xba0 net/bridge/br_netfilter_hooks.c:508\nnf_hook_entry_hookfn include/linux/netfilter.h:144 [inline]\nnf_hook_bridge_pre net/bridge/br_input.c:272 [inline]\nbr_handle_frame+0x4c9/0x940 net/bridge/br_input.c:417\n__netif_receive_skb_core+0xa8a/0x21e0 net/core/dev.c:5417\n__netif_receive_skb_one_core net/core/dev.c:5521 [inline]\n__netif_receive_skb+0x57/0x1b0 net/core/dev.c:5637\nprocess_backlog+0x21f/0x380 net/core/dev.c:5965\n__napi_poll+0x60/0x3b0 net/core/dev.c:6527\nnapi_poll net/core/dev.c:6594 [inline]\nnet_rx_action+0x32b/0x750 net/core/dev.c:6727\n__do_softirq+0xc1/0x265 kernel/softirq.c:553\ndo_softirq+0x5e/0x90 kernel/softirq.c:454\n__local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381\n__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n_raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210\nspin_unlock_bh include/linux/spinlock.h:396 [inline]\nbatadv_tt_local_purge+0x1a8/0x1f0 net/batman-adv/translation-table.c:1356\nbatadv_tt_purge+0x2b/0x630 net/batman-adv/translation-table.c:3560\nprocess_one_work kernel/workqueue.c:2630 [inline]\nprocess_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2703\nworker_thread+0x525/0x730 kernel/workqueue.c:2784\nkthread+0x1d7/0x210 kernel/kthread.c:388\nret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147\nret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304\n\nvalue changed: 0x00000000000d7190 -> 0x00000000000d7191\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 PID: 14848 Comm: kworker/u4:11 Not tainted 6.6.0-rc1-syzkaller-00236-gad8a69f361b9 #0","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.0},"cwes":["CWE-362"],"references":["https://git.kernel.org/stable/c/04cc361f029c14dd067ad180525c7392334c9bfd","https://git.kernel.org/stable/c/44bdb313da57322c9b3c108eb66981c6ec6509f4","https://git.kernel.org/stable/c/89f9f20b1cbd36d99d5a248a4bf8d11d4fd049a2","https://git.kernel.org/stable/c/8bc97117b51d68d5cea8f5351cca2d8c4153f394","https://git.kernel.org/stable/c/ad8d39c7b437fcdab7208a6a56c093d222c008d5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2023-52578","score":0.0019,"percentile":0.08672,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}