CVE-2024-26675 (GCVE-0-2024-26675)

Vulnerability from cvelistv5 – Published: 2024-04-02 07:01 – Updated: 2026-05-11 20:02
VLAI
Title
ppp_async: limit MRU to 64K
Summary
In the Linux kernel, the following vulnerability has been resolved: ppp_async: limit MRU to 64K syzbot triggered a warning [1] in __alloc_pages(): WARN_ON_ONCE_GFP(order > MAX_PAGE_ORDER, gfp) Willem fixed a similar issue in commit c0a2a1b0d631 ("ppp: limit MRU to 64K") Adopt the same sanity check for ppp_async_ioctl(PPPIOCSMRU) [1]: WARNING: CPU: 1 PID: 11 at mm/page_alloc.c:4543 __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 Modules linked in: CPU: 1 PID: 11 Comm: kworker/u4:0 Not tainted 6.8.0-rc2-syzkaller-g41bccc98fb79 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound flush_to_ldisc pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 lr : __alloc_pages+0xc8/0x698 mm/page_alloc.c:4537 sp : ffff800093967580 x29: ffff800093967660 x28: ffff8000939675a0 x27: dfff800000000000 x26: ffff70001272ceb4 x25: 0000000000000000 x24: ffff8000939675c0 x23: 0000000000000000 x22: 0000000000060820 x21: 1ffff0001272ceb8 x20: ffff8000939675e0 x19: 0000000000000010 x18: ffff800093967120 x17: ffff800083bded5c x16: ffff80008ac97500 x15: 0000000000000005 x14: 1ffff0001272cebc x13: 0000000000000000 x12: 0000000000000000 x11: ffff70001272cec1 x10: 1ffff0001272cec0 x9 : 0000000000000001 x8 : ffff800091c91000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 00000000ffffffff x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff8000939675e0 Call trace: __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] __kmalloc_large_node+0xbc/0x1fc mm/slub.c:3926 __do_kmalloc_node mm/slub.c:3969 [inline] __kmalloc_node_track_caller+0x418/0x620 mm/slub.c:4001 kmalloc_reserve+0x17c/0x23c net/core/skbuff.c:590 __alloc_skb+0x1c8/0x3d8 net/core/skbuff.c:651 __netdev_alloc_skb+0xb8/0x3e8 net/core/skbuff.c:715 netdev_alloc_skb include/linux/skbuff.h:3235 [inline] dev_alloc_skb include/linux/skbuff.h:3248 [inline] ppp_async_input drivers/net/ppp/ppp_async.c:863 [inline] ppp_asynctty_receive+0x588/0x186c drivers/net/ppp/ppp_async.c:341 tty_ldisc_receive_buf+0x12c/0x15c drivers/tty/tty_buffer.c:390 tty_port_default_receive_buf+0x74/0xac drivers/tty/tty_port.c:37 receive_buf drivers/tty/tty_buffer.c:444 [inline] flush_to_ldisc+0x284/0x6e4 drivers/tty/tty_buffer.c:494 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:53 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4fdb14ba89faff6e6969a4dffdc8e54235d6e5ed (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 56fae81633ccee307cfcb032f706bf1863a56982 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b06e067e93fa4b98acfd3a9f38a398ab91bbc58b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 58fbe665b097bf7b3144da7e7b91fb27aa8d0ae3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4e2c4846b2507f6dfc9bea72b7567c2693a82a16 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7e5ef49670766c9742ffcd9cead7cdb018268719 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 210d938f963dddc543b07e66a79b7d8d4bd00bd8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cb88cb53badb8aeb3955ad6ce80b07b598e310b8 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.19.307 , ≤ 4.19.* (semver)
Unaffected: 5.4.269 , ≤ 5.4.* (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.78 , ≤ 6.1.* (semver)
Unaffected: 6.6.17 , ≤ 6.6.* (semver)
Unaffected: 6.7.5 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ppp_async: limitar MRU a 64K syzbot activ\u00f3 una advertencia [1] en __alloc_pages(): WARN_ON_ONCE_GFP(order \u0026gt; MAX_PAGE_ORDER, gfp) Willem solucion\u00f3 un problema similar en el commit c0a2a1b0d631 (\\\"ppp: limite MRU a 64K\\\") Adopte la misma verificaci\u00f3n de cordura para ppp_async_ioctl(PPPIOCSMRU) [1]: ADVERTENCIA: CPU: 1 PID: 11 en mm/page_alloc.c:4543 __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 M\u00f3dulos vinculados en: CPU: 1 PID: 11 Comm: kworker/u4:0 No contaminado 6.8.0-rc2-syzkaller-g41bccc98fb79 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 17/11/2023 Cola de trabajo: events_unbound flux_to_ldisc pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __alloc_pages+0x308/0x698 mm/page_alloc.c:4543 lr : __alloc_pages+0xc8/0x698 mm/page_alloc.c:4537 sp: ffff800093967580 x29: ffff800093967660 x28: ffff8000939675a0 x27: dfff800000000000 x26: ffff70001272ceb4 x25: 0000000000000000 x24: ffff8000 939675c0 x23: 0000000000000000 x22: 0000000000060820 x21: 1ffff0001272ceb8 x20: ffff8000939675e0 x19: 0000000000000010 x18: ffff8000939671 20 x17: ffff800083bded5c x16: ffff80008ac97500 x15: 00000000000000005 x14: 1ffff0001272cebc x13: 0000000000000000 x12: 0000000000000000 x11: ffff70001272cec1 x10: 1ffff0001272cec0 x9: 0000000000000001 x8: ffff800091c 91000 x7: 0000000000000000 x6: 000000000000003f x5: 00000000ffffffff x4: 0000000000000000 x3: 00000000000000020 x2: 0000000000000008 x1: 0000000000000000 x0: ffff8000939675e0 Rastreo de llamadas: __alloc_pages+0x308/ 0x698 mm/page_alloc.c:4543 __alloc_pages_node include/linux/gfp.h:238 [en l\u00ednea] alloc_pages_node include/linux/gfp.h:261 [en l\u00ednea] __kmalloc_large_node+0xbc/0x1fc mm/slub.c:3926 __do_kmalloc_node mm/slub .c:3969 [en l\u00ednea] __kmalloc_node_track_caller+0x418/0x620 mm/slub.c:4001 kmalloc_reserve+0x17c/0x23c net/core/skbuff.c:590 __alloc_skb+0x1c8/0x3d8 net/core/skbuff.c:651 __netdev_alloc_skb+0x b8 /0x3e8 net/core/skbuff.c:715 netdev_alloc_skb include/linux/skbuff.h:3235 [en l\u00ednea] dev_alloc_skb include/linux/skbuff.h:3248 [en l\u00ednea] ppp_async_input drivers/net/ppp/ppp_async.c:863 [ en l\u00ednea] ppp_asynctty_receive+0x588/0x186c controladores/net/ppp/ppp_async.c:341 tty_ldisc_receive_buf+0x12c/0x15c controladores/tty/tty_buffer.c:390 tty_port_default_receive_buf+0x74/0xac controladores/tty/tty_port.c:37 recibir_buf controladores /tty /tty_buffer.c:444 [en l\u00ednea] Flush_to_ldisc+0x284/0x6e4 controladores/tty/tty_buffer.c:494 Process_one_work+0x694/0x1204 kernel/workqueue.c:2633 Process_scheduled_works kernel/workqueue.c:2706 [en l\u00ednea] trabajador_thread+0x938/ 0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ppp/ppp_async.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"4fdb14ba89faff6e6969a4dffdc8e54235d6e5ed\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"56fae81633ccee307cfcb032f706bf1863a56982\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"b06e067e93fa4b98acfd3a9f38a398ab91bbc58b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"58fbe665b097bf7b3144da7e7b91fb27aa8d0ae3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"4e2c4846b2507f6dfc9bea72b7567c2693a82a16\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"7e5ef49670766c9742ffcd9cead7cdb018268719\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"210d938f963dddc543b07e66a79b7d8d4bd00bd8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"cb88cb53badb8aeb3955ad6ce80b07b598e310b8\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ppp/ppp_async.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.307\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.269\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.210\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.149\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.78\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.17\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.7.5\",\"lessThanOrEqual\":\"6.7.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T15:53:26.335519Z\",\"id\":\"CVE-2024-26675\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T08:02:57+00:00",
      "cve": "CVE-2024-26675",
      "id": "CVE-2024-26675",
      "initial_release_date": "2024-04-02T00:00:00+00:00",
      "product_status:fixed": "430",
      "product_status:known_affected": "64",
      "product_status:known_not_affected": "16",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ppp_async: limit MRU to 64K",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26675.json",
      "version": "3"
    },
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\"https://git.kernel.org/stable/c/cb88cb53badb8aeb3955ad6ce80b07b598e310b8\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T00:14:12.841Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26675\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:53:26.335519Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:17.617Z\"}}], \"cna\": {\"title\": \"ppp_async: limit MRU to 64K\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"4fdb14ba89faff6e6969a4dffdc8e54235d6e5ed\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"56fae81633ccee307cfcb032f706bf1863a56982\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"b06e067e93fa4b98acfd3a9f38a398ab91bbc58b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"58fbe665b097bf7b3144da7e7b91fb27aa8d0ae3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"4e2c4846b2507f6dfc9bea72b7567c2693a82a16\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"7e5ef49670766c9742ffcd9cead7cdb018268719\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"210d938f963dddc543b07e66a79b7d8d4bd00bd8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"cb88cb53badb8aeb3955ad6ce80b07b598e310b8\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ppp/ppp_async.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.307\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.269\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.210\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.149\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.78\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.17\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ppp/ppp_async.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4fdb14ba89faff6e6969a4dffdc8e54235d6e5ed\"}, {\"url\": \"https://git.kernel.org/stable/c/56fae81633ccee307cfcb032f706bf1863a56982\"}, {\"url\": \"https://git.kernel.org/stable/c/b06e067e93fa4b98acfd3a9f38a398ab91bbc58b\"}, {\"url\": \"https://git.kernel.org/stable/c/58fbe665b097bf7b3144da7e7b91fb27aa8d0ae3\"}, {\"url\": \"https://git.kernel.org/stable/c/4e2c4846b2507f6dfc9bea72b7567c2693a82a16\"}, {\"url\": \"https://git.kernel.org/stable/c/7e5ef49670766c9742ffcd9cead7cdb018268719\"}, {\"url\": \"https://git.kernel.org/stable/c/210d938f963dddc543b07e66a79b7d8d4bd00bd8\"}, {\"url\": \"https://git.kernel.org/stable/c/cb88cb53badb8aeb3955ad6ce80b07b598e310b8\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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 \u003e 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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.307\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.269\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.210\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.149\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.78\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.17\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.5\", \"versionStartIncluding\": \"2.6.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"2.6.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:02:01.178Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26675\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:02:01.178Z\", \"dateReserved\": \"2024-02-19T14:20:24.151Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-02T07:01:40.054Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.