CVE-2024-35877 (GCVE-0-2024-35877)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2025-05-04 09:07
VLAI?
Title
x86/mm/pat: fix VM_PAT handling in COW mappings
Summary
In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: fix VM_PAT handling in COW mappings PAT handling won't do the right thing in COW mappings: the first PTE (or, in fact, all PTEs) can be replaced during write faults to point at anon folios. Reliably recovering the correct PFN and cachemode using follow_phys() from PTEs will not work in COW mappings. Using follow_phys(), we might just get the address+protection of the anon folio (which is very wrong), or fail on swap/nonswap entries, failing follow_phys() and triggering a WARN_ON_ONCE() in untrack_pfn() and track_pfn_copy(), not properly calling free_pfn_range(). In free_pfn_range(), we either wouldn't call memtype_free() or would call it with the wrong range, possibly leaking memory. To fix that, let's update follow_phys() to refuse returning anon folios, and fallback to using the stored PFN inside vma->vm_pgoff for COW mappings if we run into that. We will now properly handle untrack_pfn() with COW mappings, where we don't need the cachemode. We'll have to fail fork()->track_pfn_copy() if the first page was replaced by an anon folio, though: we'd have to store the cachemode in the VMA to make this work, likely growing the VMA size. For now, lets keep it simple and let track_pfn_copy() just fail in that case: it would have failed in the past with swap/nonswap entries already, and it would have done the wrong thing with anon folios. Simple reproducer to trigger the WARN_ON_ONCE() in untrack_pfn(): <--- C reproducer ---> #include <stdio.h> #include <sys/mman.h> #include <unistd.h> #include <liburing.h> int main(void) { struct io_uring_params p = {}; int ring_fd; size_t size; char *map; ring_fd = io_uring_setup(1, &p); if (ring_fd < 0) { perror("io_uring_setup"); return 1; } size = p.sq_off.array + p.sq_entries * sizeof(unsigned); /* Map the submission queue ring MAP_PRIVATE */ map = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, ring_fd, IORING_OFF_SQ_RING); if (map == MAP_FAILED) { perror("mmap"); return 1; } /* We have at least one page. Let's COW it. */ *map = 0; pause(); return 0; } <--- C reproducer ---> On a system with 16 GiB RAM and swap configured: # ./iouring & # memhog 16G # killall iouring [ 301.552930] ------------[ cut here ]------------ [ 301.553285] WARNING: CPU: 7 PID: 1402 at arch/x86/mm/pat/memtype.c:1060 untrack_pfn+0xf4/0x100 [ 301.553989] Modules linked in: binfmt_misc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_g [ 301.558232] CPU: 7 PID: 1402 Comm: iouring Not tainted 6.7.5-100.fc38.x86_64 #1 [ 301.558772] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebu4 [ 301.559569] RIP: 0010:untrack_pfn+0xf4/0x100 [ 301.559893] Code: 75 c4 eb cf 48 8b 43 10 8b a8 e8 00 00 00 3b 6b 28 74 b8 48 8b 7b 30 e8 ea 1a f7 000 [ 301.561189] RSP: 0018:ffffba2c0377fab8 EFLAGS: 00010282 [ 301.561590] RAX: 00000000ffffffea RBX: ffff9208c8ce9cc0 RCX: 000000010455e047 [ 301.562105] RDX: 07fffffff0eb1e0a RSI: 0000000000000000 RDI: ffff9208c391d200 [ 301.562628] RBP: 0000000000000000 R08: ffffba2c0377fab8 R09: 0000000000000000 [ 301.563145] R10: ffff9208d2292d50 R11: 0000000000000002 R12: 00007fea890e0000 [ 301.563669] R13: 0000000000000000 R14: ffffba2c0377fc08 R15: 0000000000000000 [ 301.564186] FS: 0000000000000000(0000) GS:ffff920c2fbc0000(0000) knlGS:0000000000000000 [ 301.564773] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 301.565197] CR2: 00007fea88ee8a20 CR3: 00000001033a8000 CR4: 0000000000750ef0 [ 301.565725] PKRU: 55555554 [ 301.565944] Call Trace: [ 301.566148] <TASK> [ 301.566325] ? untrack_pfn+0xf4/0x100 [ 301.566618] ? __warn+0x81/0x130 [ 301.566876] ? untrack_pfn+0xf4/0x100 [ 3 ---truncated---
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < f18681daaec9665a15c5e7e0f591aad5d0ac622b (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 09e6bb53217bf388a0d2fd7fb21e74ab9dffc173 (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < c2b2430b48f3c9eaccd2c3d2ad75bb540d4952f4 (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 7cfee26d1950250b14c5cb0a37b142f3fcc6396a (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 97e93367e82752e475a33839a80b33bdbef1209f (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 51b7841f3fe84606ec0bd8da859d22e05e5419ec (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 1341e4b32e1fb1b0acd002ccd56f07bd32f2abc6 (git)
Affected: 5899329b19100c0b82dc78e9b21ed8b920c9ffb3 , < 04c35ab3bdae7fefbd7c7a7355f29fa03a035221 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 4.19.312 , ≤ 4.19.* (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.155 , ≤ 5.15.* (semver)
Unaffected: 6.1.85 , ≤ 6.1.* (semver)
Unaffected: 6.6.26 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm/pat: fix VM_PAT handling in COW mappings\n\nPAT handling won\u0027t do the right thing in COW mappings: the first PTE (or,\nin fact, all PTEs) can be replaced during write faults to point at anon\nfolios.  Reliably recovering the correct PFN and cachemode using\nfollow_phys() from PTEs will not work in COW mappings.\n\nUsing follow_phys(), we might just get the address+protection of the anon\nfolio (which is very wrong), or fail on swap/nonswap entries, failing\nfollow_phys() and triggering a WARN_ON_ONCE() in untrack_pfn() and\ntrack_pfn_copy(), not properly calling free_pfn_range().\n\nIn free_pfn_range(), we either wouldn\u0027t call memtype_free() or would call\nit with the wrong range, possibly leaking memory.\n\nTo fix that, let\u0027s update follow_phys() to refuse returning anon folios,\nand fallback to using the stored PFN inside vma-\u003evm_pgoff for COW mappings\nif we run into that.\n\nWe will now properly handle untrack_pfn() with COW mappings, where we\ndon\u0027t need the cachemode.  We\u0027ll have to fail fork()-\u003etrack_pfn_copy() if\nthe first page was replaced by an anon folio, though: we\u0027d have to store\nthe cachemode in the VMA to make this work, likely growing the VMA size.\n\nFor now, lets keep it simple and let track_pfn_copy() just fail in that\ncase: it would have failed in the past with swap/nonswap entries already,\nand it would have done the wrong thing with anon folios.\n\nSimple reproducer to trigger the WARN_ON_ONCE() in untrack_pfn():\n\n\u003c--- C reproducer ---\u003e\n #include \u003cstdio.h\u003e\n #include \u003csys/mman.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003cliburing.h\u003e\n\n int main(void)\n {\n         struct io_uring_params p = {};\n         int ring_fd;\n         size_t size;\n         char *map;\n\n         ring_fd = io_uring_setup(1, \u0026p);\n         if (ring_fd \u003c 0) {\n                 perror(\"io_uring_setup\");\n                 return 1;\n         }\n         size = p.sq_off.array + p.sq_entries * sizeof(unsigned);\n\n         /* Map the submission queue ring MAP_PRIVATE */\n         map = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE,\n                    ring_fd, IORING_OFF_SQ_RING);\n         if (map == MAP_FAILED) {\n                 perror(\"mmap\");\n                 return 1;\n         }\n\n         /* We have at least one page. Let\u0027s COW it. */\n         *map = 0;\n         pause();\n         return 0;\n }\n\u003c--- C reproducer ---\u003e\n\nOn a system with 16 GiB RAM and swap configured:\n # ./iouring \u0026\n # memhog 16G\n # killall iouring\n[  301.552930] ------------[ cut here ]------------\n[  301.553285] WARNING: CPU: 7 PID: 1402 at arch/x86/mm/pat/memtype.c:1060 untrack_pfn+0xf4/0x100\n[  301.553989] Modules linked in: binfmt_misc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_g\n[  301.558232] CPU: 7 PID: 1402 Comm: iouring Not tainted 6.7.5-100.fc38.x86_64 #1\n[  301.558772] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebu4\n[  301.559569] RIP: 0010:untrack_pfn+0xf4/0x100\n[  301.559893] Code: 75 c4 eb cf 48 8b 43 10 8b a8 e8 00 00 00 3b 6b 28 74 b8 48 8b 7b 30 e8 ea 1a f7 000\n[  301.561189] RSP: 0018:ffffba2c0377fab8 EFLAGS: 00010282\n[  301.561590] RAX: 00000000ffffffea RBX: ffff9208c8ce9cc0 RCX: 000000010455e047\n[  301.562105] RDX: 07fffffff0eb1e0a RSI: 0000000000000000 RDI: ffff9208c391d200\n[  301.562628] RBP: 0000000000000000 R08: ffffba2c0377fab8 R09: 0000000000000000\n[  301.563145] R10: ffff9208d2292d50 R11: 0000000000000002 R12: 00007fea890e0000\n[  301.563669] R13: 0000000000000000 R14: ffffba2c0377fc08 R15: 0000000000000000\n[  301.564186] FS:  0000000000000000(0000) GS:ffff920c2fbc0000(0000) knlGS:0000000000000000\n[  301.564773] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  301.565197] CR2: 00007fea88ee8a20 CR3: 00000001033a8000 CR4: 0000000000750ef0\n[  301.565725] PKRU: 55555554\n[  301.565944] Call Trace:\n[  301.566148]  \u003cTASK\u003e\n[  301.566325]  ? untrack_pfn+0xf4/0x100\n[  301.566618]  ? __warn+0x81/0x130\n[  301.566876]  ? untrack_pfn+0xf4/0x100\n[  3\n---truncated---"
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f18681daaec9665a15c5e7e0f591aad5d0ac622b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/09e6bb53217bf388a0d2fd7fb21e74ab9dffc173\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c2b2430b48f3c9eaccd2c3d2ad75bb540d4952f4\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/7cfee26d1950250b14c5cb0a37b142f3fcc6396a\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/97e93367e82752e475a33839a80b33bdbef1209f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/51b7841f3fe84606ec0bd8da859d22e05e5419ec\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1341e4b32e1fb1b0acd002ccd56f07bd32f2abc6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/04c35ab3bdae7fefbd7c7a7355f29fa03a035221\", \"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\": \"2024-08-02T03:21:48.797Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-35877\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-16T21:13:41.454834Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-18T16:56:41.421Z\"}}], \"cna\": {\"title\": \"x86/mm/pat: fix VM_PAT handling in COW mappings\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"f18681daaec9665a15c5e7e0f591aad5d0ac622b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"09e6bb53217bf388a0d2fd7fb21e74ab9dffc173\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"c2b2430b48f3c9eaccd2c3d2ad75bb540d4952f4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"7cfee26d1950250b14c5cb0a37b142f3fcc6396a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"97e93367e82752e475a33839a80b33bdbef1209f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"51b7841f3fe84606ec0bd8da859d22e05e5419ec\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"1341e4b32e1fb1b0acd002ccd56f07bd32f2abc6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5899329b19100c0b82dc78e9b21ed8b920c9ffb3\", \"lessThan\": \"04c35ab3bdae7fefbd7c7a7355f29fa03a035221\", \"versionType\": \"git\"}], \"programFiles\": [\"arch/x86/mm/pat/memtype.c\", \"mm/memory.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.29\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.29\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.312\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.215\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.155\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.26\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/x86/mm/pat/memtype.c\", \"mm/memory.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f18681daaec9665a15c5e7e0f591aad5d0ac622b\"}, {\"url\": \"https://git.kernel.org/stable/c/09e6bb53217bf388a0d2fd7fb21e74ab9dffc173\"}, {\"url\": \"https://git.kernel.org/stable/c/c2b2430b48f3c9eaccd2c3d2ad75bb540d4952f4\"}, {\"url\": \"https://git.kernel.org/stable/c/7cfee26d1950250b14c5cb0a37b142f3fcc6396a\"}, {\"url\": \"https://git.kernel.org/stable/c/97e93367e82752e475a33839a80b33bdbef1209f\"}, {\"url\": \"https://git.kernel.org/stable/c/51b7841f3fe84606ec0bd8da859d22e05e5419ec\"}, {\"url\": \"https://git.kernel.org/stable/c/1341e4b32e1fb1b0acd002ccd56f07bd32f2abc6\"}, {\"url\": \"https://git.kernel.org/stable/c/04c35ab3bdae7fefbd7c7a7355f29fa03a035221\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nx86/mm/pat: fix VM_PAT handling in COW mappings\\n\\nPAT handling won\u0027t do the right thing in COW mappings: the first PTE (or,\\nin fact, all PTEs) can be replaced during write faults to point at anon\\nfolios.  Reliably recovering the correct PFN and cachemode using\\nfollow_phys() from PTEs will not work in COW mappings.\\n\\nUsing follow_phys(), we might just get the address+protection of the anon\\nfolio (which is very wrong), or fail on swap/nonswap entries, failing\\nfollow_phys() and triggering a WARN_ON_ONCE() in untrack_pfn() and\\ntrack_pfn_copy(), not properly calling free_pfn_range().\\n\\nIn free_pfn_range(), we either wouldn\u0027t call memtype_free() or would call\\nit with the wrong range, possibly leaking memory.\\n\\nTo fix that, let\u0027s update follow_phys() to refuse returning anon folios,\\nand fallback to using the stored PFN inside vma-\u003evm_pgoff for COW mappings\\nif we run into that.\\n\\nWe will now properly handle untrack_pfn() with COW mappings, where we\\ndon\u0027t need the cachemode.  We\u0027ll have to fail fork()-\u003etrack_pfn_copy() if\\nthe first page was replaced by an anon folio, though: we\u0027d have to store\\nthe cachemode in the VMA to make this work, likely growing the VMA size.\\n\\nFor now, lets keep it simple and let track_pfn_copy() just fail in that\\ncase: it would have failed in the past with swap/nonswap entries already,\\nand it would have done the wrong thing with anon folios.\\n\\nSimple reproducer to trigger the WARN_ON_ONCE() in untrack_pfn():\\n\\n\u003c--- C reproducer ---\u003e\\n #include \u003cstdio.h\u003e\\n #include \u003csys/mman.h\u003e\\n #include \u003cunistd.h\u003e\\n #include \u003cliburing.h\u003e\\n\\n int main(void)\\n {\\n         struct io_uring_params p = {};\\n         int ring_fd;\\n         size_t size;\\n         char *map;\\n\\n         ring_fd = io_uring_setup(1, \u0026p);\\n         if (ring_fd \u003c 0) {\\n                 perror(\\\"io_uring_setup\\\");\\n                 return 1;\\n         }\\n         size = p.sq_off.array + p.sq_entries * sizeof(unsigned);\\n\\n         /* Map the submission queue ring MAP_PRIVATE */\\n         map = mmap(0, size, PROT_READ | PROT_WRITE, MAP_PRIVATE,\\n                    ring_fd, IORING_OFF_SQ_RING);\\n         if (map == MAP_FAILED) {\\n                 perror(\\\"mmap\\\");\\n                 return 1;\\n         }\\n\\n         /* We have at least one page. Let\u0027s COW it. */\\n         *map = 0;\\n         pause();\\n         return 0;\\n }\\n\u003c--- C reproducer ---\u003e\\n\\nOn a system with 16 GiB RAM and swap configured:\\n # ./iouring \u0026\\n # memhog 16G\\n # killall iouring\\n[  301.552930] ------------[ cut here ]------------\\n[  301.553285] WARNING: CPU: 7 PID: 1402 at arch/x86/mm/pat/memtype.c:1060 untrack_pfn+0xf4/0x100\\n[  301.553989] Modules linked in: binfmt_misc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_g\\n[  301.558232] CPU: 7 PID: 1402 Comm: iouring Not tainted 6.7.5-100.fc38.x86_64 #1\\n[  301.558772] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebu4\\n[  301.559569] RIP: 0010:untrack_pfn+0xf4/0x100\\n[  301.559893] Code: 75 c4 eb cf 48 8b 43 10 8b a8 e8 00 00 00 3b 6b 28 74 b8 48 8b 7b 30 e8 ea 1a f7 000\\n[  301.561189] RSP: 0018:ffffba2c0377fab8 EFLAGS: 00010282\\n[  301.561590] RAX: 00000000ffffffea RBX: ffff9208c8ce9cc0 RCX: 000000010455e047\\n[  301.562105] RDX: 07fffffff0eb1e0a RSI: 0000000000000000 RDI: ffff9208c391d200\\n[  301.562628] RBP: 0000000000000000 R08: ffffba2c0377fab8 R09: 0000000000000000\\n[  301.563145] R10: ffff9208d2292d50 R11: 0000000000000002 R12: 00007fea890e0000\\n[  301.563669] R13: 0000000000000000 R14: ffffba2c0377fc08 R15: 0000000000000000\\n[  301.564186] FS:  0000000000000000(0000) GS:ffff920c2fbc0000(0000) knlGS:0000000000000000\\n[  301.564773] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[  301.565197] CR2: 00007fea88ee8a20 CR3: 00000001033a8000 CR4: 0000000000750ef0\\n[  301.565725] PKRU: 55555554\\n[  301.565944] Call Trace:\\n[  301.566148]  \u003cTASK\u003e\\n[  301.566325]  ? untrack_pfn+0xf4/0x100\\n[  301.566618]  ? __warn+0x81/0x130\\n[  301.566876]  ? untrack_pfn+0xf4/0x100\\n[  3\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.312\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.274\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.215\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.155\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.85\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.26\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.5\", \"versionStartIncluding\": \"2.6.29\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"2.6.29\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:07:25.990Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-35877\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:07:25.990Z\", \"dateReserved\": \"2024-05-17T13:50:33.110Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-19T08:34:34.604Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.