{
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    "cveMetadata": {
        "cveId": "CVE-2024-26675",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-19T14:20:24.151Z",
        "datePublished": "2024-04-02T07:01:40.054Z",
        "dateUpdated": "2024-09-11T17:33:36.657Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
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                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:20:38.072Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nppp_async: limit MRU to 64K\n\nsyzbot triggered a warning [1] in __alloc_pages():\n\nWARN_ON_ONCE_GFP(order > MAX_PAGE_ORDER, gfp)\n\nWillem fixed a similar issue in commit c0a2a1b0d631 (\"ppp: limit MRU to 64K\")\n\nAdopt the same sanity check for ppp_async_ioctl(PPPIOCSMRU)\n\n[1]:\n\n WARNING: CPU: 1 PID: 11 at mm/page_alloc.c:4543 __alloc_pages+0x308/0x698 mm/page_alloc.c:4543\nModules linked in:\nCPU: 1 PID: 11 Comm: kworker/u4:0 Not tainted 6.8.0-rc2-syzkaller-g41bccc98fb79 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\nWorkqueue: events_unbound flush_to_ldisc\npstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : __alloc_pages+0x308/0x698 mm/page_alloc.c:4543\n lr : __alloc_pages+0xc8/0x698 mm/page_alloc.c:4537\nsp : ffff800093967580\nx29: ffff800093967660 x28: ffff8000939675a0 x27: dfff800000000000\nx26: ffff70001272ceb4 x25: 0000000000000000 x24: ffff8000939675c0\nx23: 0000000000000000 x22: 0000000000060820 x21: 1ffff0001272ceb8\nx20: ffff8000939675e0 x19: 0000000000000010 x18: ffff800093967120\nx17: ffff800083bded5c x16: ffff80008ac97500 x15: 0000000000000005\nx14: 1ffff0001272cebc x13: 0000000000000000 x12: 0000000000000000\nx11: ffff70001272cec1 x10: 1ffff0001272cec0 x9 : 0000000000000001\nx8 : ffff800091c91000 x7 : 0000000000000000 x6 : 000000000000003f\nx5 : 00000000ffffffff x4 : 0000000000000000 x3 : 0000000000000020\nx2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff8000939675e0\nCall trace:\n  __alloc_pages+0x308/0x698 mm/page_alloc.c:4543\n  __alloc_pages_node include/linux/gfp.h:238 [inline]\n  alloc_pages_node include/linux/gfp.h:261 [inline]\n  __kmalloc_large_node+0xbc/0x1fc mm/slub.c:3926\n  __do_kmalloc_node mm/slub.c:3969 [inline]\n  __kmalloc_node_track_caller+0x418/0x620 mm/slub.c:4001\n  kmalloc_reserve+0x17c/0x23c net/core/skbuff.c:590\n  __alloc_skb+0x1c8/0x3d8 net/core/skbuff.c:651\n  __netdev_alloc_skb+0xb8/0x3e8 net/core/skbuff.c:715\n  netdev_alloc_skb include/linux/skbuff.h:3235 [inline]\n  dev_alloc_skb include/linux/skbuff.h:3248 [inline]\n  ppp_async_input drivers/net/ppp/ppp_async.c:863 [inline]\n  ppp_asynctty_receive+0x588/0x186c drivers/net/ppp/ppp_async.c:341\n  tty_ldisc_receive_buf+0x12c/0x15c drivers/tty/tty_buffer.c:390\n  tty_port_default_receive_buf+0x74/0xac drivers/tty/tty_port.c:37\n  receive_buf drivers/tty/tty_buffer.c:444 [inline]\n  flush_to_ldisc+0x284/0x6e4 drivers/tty/tty_buffer.c:494\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\n  kthread+0x288/0x310 kernel/kthread.c:388\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ppp/ppp_async.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "4fdb14ba89fa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "56fae81633cc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "b06e067e93fa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "58fbe665b097",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "4e2c4846b250",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "7e5ef4967076",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "210d938f963d",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "cb88cb53badb",
                            "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/ppp/ppp_async.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.12",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "4.19.307",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.4.269",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.210",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.149",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.78",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.17",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.7.5",
                            "lessThanOrEqual": "6.7.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.8",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
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