CVE-2024-26783 (GCVE-0-2024-26783)
Vulnerability from cvelistv5
Published
2024-04-04 08:20
Modified
2026-10-15 00:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index With numa balancing on, when a numa system is running where a numa node doesn't have its local memory so it has no managed zones, the following oops has been observed. It's because wakeup_kswapd() is called with a wrong zone index, -1. Fixed it by checking the index before calling wakeup_kswapd(). > BUG: unable to handle page fault for address: 00000000000033f3 > #PF: supervisor read access in kernel mode > #PF: error_code(0x0000) - not-present page > PGD 0 P4D 0 > Oops: 0000 [#1] PREEMPT SMP NOPTI > CPU: 2 PID: 895 Comm: masim Not tainted 6.6.0-dirty #255 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS > rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 > RIP: 0010:wakeup_kswapd (./linux/mm/vmscan.c:7812) > Code: (omitted) > RSP: 0000:ffffc90004257d58 EFLAGS: 00010286 > RAX: ffffffffffffffff RBX: ffff88883fff0480 RCX: 0000000000000003 > RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88883fff0480 > RBP: ffffffffffffffff R08: ff0003ffffffffff R09: ffffffffffffffff > R10: ffff888106c95540 R11: 0000000055555554 R12: 0000000000000003 > R13: 0000000000000000 R14: 0000000000000000 R15: ffff88883fff0940 > FS: 00007fc4b8124740(0000) GS:ffff888827c00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00000000000033f3 CR3: 000000026cc08004 CR4: 0000000000770ee0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > PKRU: 55555554 > Call Trace: > <TASK> > ? __die > ? page_fault_oops > ? __pte_offset_map_lock > ? exc_page_fault > ? asm_exc_page_fault > ? wakeup_kswapd > migrate_misplaced_page > __handle_mm_fault > handle_mm_fault > do_user_addr_fault > exc_page_fault > asm_exc_page_fault > RIP: 0033:0x55b897ba0808 > Code: (omitted) > RSP: 002b:00007ffeefa821a0 EFLAGS: 00010287 > RAX: 000055b89983acd0 RBX: 00007ffeefa823f8 RCX: 000055b89983acd0 > RDX: 00007fc2f8122010 RSI: 0000000000020000 RDI: 000055b89983acd0 > RBP: 00007ffeefa821a0 R08: 0000000000000037 R09: 0000000000000075 > R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 > R13: 00007ffeefa82410 R14: 000055b897ba5dd8 R15: 00007fc4b8340000 > </TASK>
References
Impacted products
Vendor Product Version
Linux Linux Version: c574bbe917036c8968b984c82c7b13194fe5ce98
Version: c574bbe917036c8968b984c82c7b13194fe5ce98
Version: c574bbe917036c8968b984c82c7b13194fe5ce98
Version: c574bbe917036c8968b984c82c7b13194fe5ce98
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\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.140\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.22\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/migrate.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e5ec1c24e71dbf144677a975d6ba91043c2193db\"}, {\"url\": \"https://git.kernel.org/stable/c/d6159bd4c00594249e305bfe02304c67c506264e\"}, {\"url\": \"https://git.kernel.org/stable/c/bdd21eed8b72f9e28d6c279f6db258e090c79080\"}, {\"url\": \"https://git.kernel.org/stable/c/2774f256e7c0219e2b0a0894af1c76bdabc4f974\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index\\n\\nWith numa balancing on, when a numa system is running where a numa node\\ndoesn\u0027t have its local memory so it has no managed zones, the following\\noops has been observed.  It\u0027s because wakeup_kswapd() is called with a\\nwrong zone index, -1.  Fixed it by checking the index before calling\\nwakeup_kswapd().\\n\\n\u003e BUG: unable to handle page fault for address: 00000000000033f3\\n\u003e #PF: supervisor read access in kernel mode\\n\u003e #PF: error_code(0x0000) - not-present page\\n\u003e PGD 0 P4D 0\\n\u003e Oops: 0000 [#1] PREEMPT SMP NOPTI\\n\u003e CPU: 2 PID: 895 Comm: masim Not tainted 6.6.0-dirty #255\\n\u003e Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\\n\u003e    rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\n\u003e RIP: 0010:wakeup_kswapd (./linux/mm/vmscan.c:7812)\\n\u003e Code: (omitted)\\n\u003e RSP: 0000:ffffc90004257d58 EFLAGS: 00010286\\n\u003e RAX: ffffffffffffffff RBX: ffff88883fff0480 RCX: 0000000000000003\\n\u003e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88883fff0480\\n\u003e RBP: ffffffffffffffff R08: ff0003ffffffffff R09: ffffffffffffffff\\n\u003e R10: ffff888106c95540 R11: 0000000055555554 R12: 0000000000000003\\n\u003e R13: 0000000000000000 R14: 0000000000000000 R15: ffff88883fff0940\\n\u003e FS:  00007fc4b8124740(0000) GS:ffff888827c00000(0000) knlGS:0000000000000000\\n\u003e CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n\u003e CR2: 00000000000033f3 CR3: 000000026cc08004 CR4: 0000000000770ee0\\n\u003e DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n\u003e DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n\u003e PKRU: 55555554\\n\u003e Call Trace:\\n\u003e  \u003cTASK\u003e\\n\u003e ? __die\\n\u003e ? page_fault_oops\\n\u003e ? __pte_offset_map_lock\\n\u003e ? exc_page_fault\\n\u003e ? asm_exc_page_fault\\n\u003e ? wakeup_kswapd\\n\u003e migrate_misplaced_page\\n\u003e __handle_mm_fault\\n\u003e handle_mm_fault\\n\u003e do_user_addr_fault\\n\u003e exc_page_fault\\n\u003e asm_exc_page_fault\\n\u003e RIP: 0033:0x55b897ba0808\\n\u003e Code: (omitted)\\n\u003e RSP: 002b:00007ffeefa821a0 EFLAGS: 00010287\\n\u003e RAX: 000055b89983acd0 RBX: 00007ffeefa823f8 RCX: 000055b89983acd0\\n\u003e RDX: 00007fc2f8122010 RSI: 0000000000020000 RDI: 000055b89983acd0\\n\u003e RBP: 00007ffeefa821a0 R08: 0000000000000037 R09: 0000000000000075\\n\u003e R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\\n\u003e R13: 00007ffeefa82410 R14: 000055b897ba5dd8 R15: 00007fc4b8340000\\n\u003e  \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.140\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.22\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.9\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"5.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:04:06.074Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26783\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-15T00:38:34.383Z\", \"dateReserved\": \"2024-02-19T14:20:24.177Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-04T08:20:17.118Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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