185 lines
11 KiB
JSON
185 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-53709",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-10-22T13:21:37.346Z",
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"datePublished": "2025-10-22T13:23:45.155Z",
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"dateUpdated": "2026-05-11T19:50:20.480Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:50:20.480Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Handle race between rb_move_tail and rb_check_pages\n\nIt seems a data race between ring_buffer writing and integrity check.\nThat is, RB_FLAG of head_page is been updating, while at same time\nRB_FLAG was cleared when doing integrity check rb_check_pages():\n\n rb_check_pages() rb_handle_head_page():\n -------- --------\n rb_head_page_deactivate()\n rb_head_page_set_normal()\n rb_head_page_activate()\n\nWe do intergrity test of the list to check if the list is corrupted and\nit is still worth doing it. So, let's refactor rb_check_pages() such that\nwe no longer clear and set flag during the list sanity checking.\n\n[1] and [2] are the test to reproduce and the crash report respectively.\n\n1:\n``` read_trace.sh\n while true;\n do\n # the \"trace\" file is closed after read\n head -1 /sys/kernel/tracing/trace > /dev/null\n done\n```\n``` repro.sh\n sysctl -w kernel.panic_on_warn=1\n # function tracer will writing enough data into ring_buffer\n echo function > /sys/kernel/tracing/current_tracer\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n ./read_trace.sh &\n```\n\n2:\n------------[ cut here ]------------\nWARNING: CPU: 9 PID: 62 at kernel/trace/ring_buffer.c:2653\nrb_move_tail+0x450/0x470\nModules linked in:\nCPU: 9 PID: 62 Comm: ksoftirqd/9 Tainted: G W 6.2.0-rc6+\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\nrel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014\nRIP: 0010:rb_move_tail+0x450/0x470\nCode: ff ff 4c 89 c8 f0 4d 0f b1 02 48 89 c2 48 83 e2 fc 49 39 d0 75 24\n83 e0 03 83 f8 02 0f 84 e1 fb ff ff 48 8b 57 10 f0 ff 42 08 <0f> 0b 83\nf8 02 0f 84 ce fb ff ff e9 db\nRSP: 0018:ffffb5564089bd00 EFLAGS: 00000203\nRAX: 0000000000000000 RBX: ffff9db385a2bf81 RCX: ffffb5564089bd18\nRDX: ffff9db281110100 RSI: 0000000000000fe4 RDI: ffff9db380145400\nRBP: ffff9db385a2bf80 R08: ffff9db385a2bfc0 R09: ffff9db385a2bfc2\nR10: ffff9db385a6c000 R11: ffff9db385a2bf80 R12: 0000000000000000\nR13: 00000000000003e8 R14: ffff9db281110100 R15: ffffffffbb006108\nFS: 0000000000000000(0000) GS:ffff9db3bdcc0000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00005602323024c8 CR3: 0000000022e0c000 CR4: 00000000000006e0\nCall Trace:\n <TASK>\n ring_buffer_lock_reserve+0x136/0x360\n ? __do_softirq+0x287/0x2df\n ? __pfx_rcu_softirq_qs+0x10/0x10\n trace_function+0x21/0x110\n ? __pfx_rcu_softirq_qs+0x10/0x10\n ? __do_softirq+0x287/0x2df\n function_trace_call+0xf6/0x120\n 0xffffffffc038f097\n ? rcu_softirq_qs+0x5/0x140\n rcu_softirq_qs+0x5/0x140\n __do_softirq+0x287/0x2df\n run_ksoftirqd+0x2a/0x30\n smpboot_thread_fn+0x188/0x220\n ? __pfx_smpboot_thread_fn+0x10/0x10\n kthread+0xe7/0x110\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2c/0x50\n </TASK>\n---[ end trace 0000000000000000 ]---\n\n[ crash report and test reproducer credit goes to Zheng Yejian]"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/trace/ring_buffer.c"
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],
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{
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"version": "1039221cc2787dee51a7ffbf9b0e79d192dadf76",
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"lessThan": "6e02a43acd0691791df79ce538f2dd497a6c9b76",
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"status": "affected",
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},
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{
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"version": "1039221cc2787dee51a7ffbf9b0e79d192dadf76",
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"lessThan": "d41db100bc386b9433a3fc87026f5e8b453653e3",
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"status": "affected",
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{
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"version": "1039221cc2787dee51a7ffbf9b0e79d192dadf76",
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"lessThan": "9674390ac540ed06768e3fbc2dba553929fbd736",
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"status": "affected",
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"lessThan": "8843e06f67b14f71c044bf6267b2387784c7e198",
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"status": "affected",
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/trace/ring_buffer.c"
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],
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"versions": [
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{
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"version": "5.7",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.7",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.173",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.99",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.16",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.2.3",
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"lessThanOrEqual": "6.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"operator": "OR",
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"negate": false,
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/6e02a43acd0691791df79ce538f2dd497a6c9b76"
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},
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{
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"url": "https://git.kernel.org/stable/c/d41db100bc386b9433a3fc87026f5e8b453653e3"
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},
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{
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"url": "https://git.kernel.org/stable/c/9674390ac540ed06768e3fbc2dba553929fbd736"
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{
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"url": "https://git.kernel.org/stable/c/09b1bf25f7f7a8f2bf8cd4278bba9c3172db8013"
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},
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{
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"url": "https://git.kernel.org/stable/c/8843e06f67b14f71c044bf6267b2387784c7e198"
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}
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],
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"title": "ring-buffer: Handle race between rb_move_tail and rb_check_pages",
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"x_generator": {
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}
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} |