{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-57795", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-01-15T13:08:59.657Z", "datePublished": "2025-01-15T13:10:23.880Z", "dateUpdated": "2026-08-05T11:46:34.724Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:46:34.724Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Remove the direct link to net_device\n\nThe similar patch in siw is in the link:\nhttps://git.kernel.org/rdma/rdma/c/16b87037b48889\n\nThis problem also occurred in RXE. The following analyze this problem.\nIn the following Call Traces:\n\"\nBUG: KASAN: slab-use-after-free in dev_get_flags+0x188/0x1d0 net/core/dev.c:8782\nRead of size 4 at addr ffff8880554640b0 by task kworker/1:4/5295\n\nCPU: 1 UID: 0 PID: 5295 Comm: kworker/1:4 Not tainted\n6.12.0-rc3-syzkaller-00399-g9197b73fd7bb #0\nHardware name: Google Compute Engine/Google Compute Engine,\nBIOS Google 09/13/2024\nWorkqueue: infiniband ib_cache_event_task\nCall Trace:\n \n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n dev_get_flags+0x188/0x1d0 net/core/dev.c:8782\n rxe_query_port+0x12d/0x260 drivers/infiniband/sw/rxe/rxe_verbs.c:60\n __ib_query_port drivers/infiniband/core/device.c:2111 [inline]\n ib_query_port+0x168/0x7d0 drivers/infiniband/core/device.c:2143\n ib_cache_update+0x1a9/0xb80 drivers/infiniband/core/cache.c:1494\n ib_cache_event_task+0xf3/0x1e0 drivers/infiniband/core/cache.c:1568\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310\n worker_thread+0x870/0xd30 kernel/workqueue.c:3391\n kthread+0x2f2/0x390 kernel/kthread.c:389\n ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \n\"\n\n1). In the link [1],\n\n\"\n infiniband syz2: set down\n\"\n\nThis means that on 839.350575, the event ib_cache_event_task was sent andi\nqueued in ib_wq.\n\n2). In the link [1],\n\n\"\n team0 (unregistering): Port device team_slave_0 removed\n\"\n\nIt indicates that before 843.251853, the net device should be freed.\n\n3). In the link [1],\n\n\"\n BUG: KASAN: slab-use-after-free in dev_get_flags+0x188/0x1d0\n\"\n\nThis means that on 850.559070, this slab-use-after-free problem occurred.\n\nIn all, on 839.350575, the event ib_cache_event_task was sent and queued\nin ib_wq,\n\nbefore 843.251853, the net device veth was freed.\n\non 850.559070, this event was executed, and the mentioned freed net device\nwas called. Thus, the above call trace occurred.\n\n[1] https://syzkaller.appspot.com/x/log.txt?x=12e7025f980000" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The dangling `rxe->ndev` is dereferenced from local paths — RDMA netlink link add/del, netdev up/down/unregister events, and uverbs QUERY_PORT/ATTACH_MCAST on /dev/infiniband/uverbsN. Incoming RoCEv2 packets use `skb->dev` rather than the cached pointer, so there is no remote trigger.\nAC:L - The attacker drives both halves deterministically: bring the netdev down to queue `ib_cache_event_task`, then delete the netdev so `free_netdevs()` drops the last reference before `flush_workqueue(ib_wq)` runs the pending work. syzbot reproduced it, and the sequence can be looped until it lands.\nPR:L - On a system with Soft-RoCE already configured, the UAF dereference sites (`rxe_query_port`, `rxe_mcast_add`/`rxe_mcast_del`) are reachable by any local unprivileged user through the world-accessible uverbs character device and sysfs port attributes. This matches the scoring of the same class of RDMA lifetime UAFs (CVE-2025-22085, CVE-2025-38022, CVE-2025-38024).\nUI:N - The entire sequence is performed by the attacker via netlink and verbs calls; no victim action or cooperation is needed.\nS:U - The freed `struct net_device` and the corrupting code both live in the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a slab use-after-free on `struct net_device`; the attacker can spray the freed slab and have `dev_get_flags()`/`netif_running()`/`netdev_name()` read back reclaimed content, and the leaked port state and device-name data flow back to userspace via query_port and dev_info.\nI:H - `dev_mc_add()`/`dev_mc_del()` on the freed netdev perform list manipulation into reclaimed slab memory and then indirect-call `dev->netdev_ops->ndo_set_rx_mode` through a freed function-pointer table, giving a write and control-flow-hijack primitive.\nA:H - The confirmed KASAN slab-use-after-free read in `dev_get_flags()` panics the kernel with `panic_on_warn`/KASAN and readily oopses otherwise, and the multicast paths corrupt freed heap state leading to further crashes." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/sw/rxe/rxe.c", "drivers/infiniband/sw/rxe/rxe.h", "drivers/infiniband/sw/rxe/rxe_mcast.c", "drivers/infiniband/sw/rxe/rxe_net.c", "drivers/infiniband/sw/rxe/rxe_verbs.c", "drivers/infiniband/sw/rxe/rxe_verbs.h" ], "versions": [ { "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "32ca3557d968e662957131374a5f81c9c9cdbba8", "status": "affected", "versionType": "git" }, { "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "9f6f54e6a6863131442b40e14d1792b090c7ce21", "status": "affected", "versionType": "git" }, { "version": "8700e3e7c4857d28ebaa824509934556da0b3e76", "lessThan": "2ac5415022d16d63d912a39a06f32f1f51140261", "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/infiniband/sw/rxe/rxe.c", "drivers/infiniband/sw/rxe/rxe.h", "drivers/infiniband/sw/rxe/rxe_mcast.c", "drivers/infiniband/sw/rxe/rxe_net.c", "drivers/infiniband/sw/rxe/rxe_verbs.c", "drivers/infiniband/sw/rxe/rxe_verbs.h" ], "versions": [ { "version": "4.8", "status": "affected" }, { "version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.9", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "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": "4.8", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.12.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/32ca3557d968e662957131374a5f81c9c9cdbba8" }, { "url": "https://git.kernel.org/stable/c/9f6f54e6a6863131442b40e14d1792b090c7ce21" }, { "url": "https://git.kernel.org/stable/c/2ac5415022d16d63d912a39a06f32f1f51140261" } ], "title": "RDMA/rxe: Remove the direct link to net_device", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-57795", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-13T13:56:40.628550Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-13T14:04:27.443Z" } } ] } }