{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-48937", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.623Z", "datePublished": "2024-08-22T03:31:32.165Z", "dateUpdated": "2026-05-11T18:50:01.685Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:50:01.685Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: add a schedule point in io_add_buffers()\n\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\nespecially with DEBUG features (like KASAN).\n\n[ 253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\n[ 253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\n[ 253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S O 5.17.0-smp-DEV #801\n[ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\n[ 253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\n[ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\n[ 253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\n[ 253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\n[ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\n[ 253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\n[ 253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\n[ 253.544483] FS: 00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\n[ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\n[ 253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 253.544494] Call Trace:\n[ 253.544496] <TASK>\n[ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544505] __kernel_text_address (kernel/extable.c:78)\n[ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\n[ 253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\n[ 253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544521] stack_trace_save (kernel/stacktrace.c:123)\n[ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\n[ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\n[ 253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\n[ 253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\n[ 253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\n[ 253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\n[ 253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\n[ 253.544596] __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544600] io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544603] io_submit_sqe (fs/io_uring.c:?)\n[ 253.544608] io_submit_sqes (fs/io_uring.c:?)\n[ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/io_uring.c"], "versions": [{"version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "4a93c6594613c3429b6f30136fff115c7f803af4", "status": "affected", "versionType": "git"}, {"version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "c718ea4e7382e18957ed0e88a5f855e2122d9c00", "status": "affected", "versionType": "git"}, {"version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "8f3cc3c5bc43d03b5748ac4fb8d180084952c36a", "status": "affected", "versionType": "git"}, {"version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "f240762f88b4b1b58561939ffd44837759756477", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/io_uring.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.103", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.26", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.12", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.10.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.15.26"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.16.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4"}, {"url": "https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00"}, {"url": "https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a"}, {"url": "https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477"}], "title": "io_uring: add a schedule point in io_add_buffers()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48937", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:32:30.798795Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:09.380Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48937", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:32:30.798795Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:15.519Z"}}], "cna": {"title": "io_uring: add a schedule point in io_add_buffers()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "4a93c6594613c3429b6f30136fff115c7f803af4", "versionType": "git"}, {"status": "affected", "version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "c718ea4e7382e18957ed0e88a5f855e2122d9c00", "versionType": "git"}, {"status": "affected", "version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "8f3cc3c5bc43d03b5748ac4fb8d180084952c36a", "versionType": "git"}, {"status": "affected", "version": "ddf0322db79c5984dc1a1db890f946dd19b7d6d9", "lessThan": "f240762f88b4b1b58561939ffd44837759756477", "versionType": "git"}], "programFiles": ["fs/io_uring.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"status": "unaffected", "version": "0", "lessThan": "5.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.103", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.26", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.12", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/io_uring.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4"}, {"url": "https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00"}, {"url": "https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a"}, {"url": "https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: add a schedule point in io_add_buffers()\n\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\nespecially with DEBUG features (like KASAN).\n\n[ 253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\n[ 253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\n[ 253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S O 5.17.0-smp-DEV #801\n[ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\n[ 253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\n[ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\n[ 253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\n[ 253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\n[ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\n[ 253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\n[ 253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\n[ 253.544483] FS: 00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\n[ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\n[ 253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 253.544494] Call Trace:\n[ 253.544496] <TASK>\n[ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544505] __kernel_text_address (kernel/extable.c:78)\n[ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\n[ 253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\n[ 253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544521] stack_trace_save (kernel/stacktrace.c:123)\n[ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\n[ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\n[ 253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\n[ 253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\n[ 253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\n[ 253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\n[ 253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\n[ 253.544596] __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544600] io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544603] io_submit_sqe (fs/io_uring.c:?)\n[ 253.544608] io_submit_sqes (fs/io_uring.c:?)\n[ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\n---truncated---"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.103", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.26", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.12", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "5.7"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:50:01.685Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48937", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:50:01.685Z", "dateReserved": "2024-08-22T01:27:53.623Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-22T03:31:32.165Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7BF4E57B-2E8D-4F4A-9DD0-A1A61CDDD2B6", "versionEndExcluding": "5.10.103", "versionStartIncluding": "5.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9AB342AE-A62E-4947-A6EA-511453062B2B", "versionEndExcluding": "5.15.26", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C76BAB21-7F23-4AD8-A25F-CA7B262A2698", "versionEndExcluding": "5.16.12", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: add a schedule point in io_add_buffers()\n\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\nespecially with DEBUG features (like KASAN).\n\n[ 253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\n[ 253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\n[ 253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S O 5.17.0-smp-DEV #801\n[ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\n[ 253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\n[ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\n[ 253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\n[ 253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\n[ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\n[ 253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\n[ 253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\n[ 253.544483] FS: 00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\n[ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\n[ 253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 253.544494] Call Trace:\n[ 253.544496] <TASK>\n[ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544505] __kernel_text_address (kernel/extable.c:78)\n[ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\n[ 253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\n[ 253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544521] stack_trace_save (kernel/stacktrace.c:123)\n[ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\n[ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\n[ 253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\n[ 253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\n[ 253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\n[ 253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\n[ 253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\n[ 253.544596] __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544600] io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544603] io_submit_sqe (fs/io_uring.c:?)\n[ 253.544608] io_submit_sqes (fs/io_uring.c:?)\n[ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: io_uring: agregue un punto de programaci\u00f3n en io_add_buffers() Realizar bucles ~65535 veces al realizar llamadas kmalloc() puede desencadenar bloqueos suaves, especialmente con funciones DEBUG (como KASAN). [253.536212] perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU#64 bloqueada durante 26 segundos! [b219417889:12575] [253.544433] M\u00f3dulos vinculados en: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O) [253.544451] CPU: 64 PID: 12575 Comm: 417889 Contaminado: GSO 5.17.0-smp-DEV #801 [ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98) [ 253.544464] C\u00f3digo: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb &lt;48&gt; c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40 [ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246 [ 253.544471] RAX: 1ffff1105b1 75e00 RBX: fffffffa13ef09a RCX: 00000000a13ef001 [ 253.544474] RDX: fffffffa13ef09a RSI: ffff8882d8baf558 RDI: fffffffa13ef09a [ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 00000000000000004 [ 253.544479] R10: ffff8882d8baf5e8 R11: 0d59a50 R12: ffff8882eab20380 [ 253.544481] R13: fffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0 [ 253.544483] FS: 00000000016d3380( 0000) GS: ffff88af48c00000(0000) knlGS:00000000000000000 [ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 253.544488] CR2: af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0 [ 253.544491] DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 253.544 492] DR3 : 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 253.544494] Seguimiento de llamadas: [ 253.544496] [ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143) [ 253.544505] __kernel_text_address (kernel/extable.c:78) [ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19) [ 253.544514] arch_stack_walk (arch/ x86/n\u00facleo /stacktrace.c:27) [253.544517]? io_queue_sqe (fs/io_uring.c:7143) [ 253.544521] stack_trace_save (kernel/stacktrace.c:123) [ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/ common.c:436 mm/kasan/common.c:515) [ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515) [ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524) [253.544535]? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [253.544544]? __io_queue_sqe (fs/io_uring.c:?) [ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524) [ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567) [ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828) [ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828 ) [253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469) [ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546) [ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078) [253.544578]? io_submit_sqes (fs/io_uring.c:7441) [253.544581]? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096) [253.544584]? __x64_sys_io_uring_enter (fs/io_uring.c:10096) [253.544587]? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) [253.544590]? entrada_SYSCALL_64_after_hwframe (??:?) [ 253.544596] __io_queue_sqe (fs/io_uring.c:?) [ 253.544600] io_queue_sqe (fs/io_uring.c:7143) [ 253.544603] io_submit_sqe (fs/io_uring.c :?) [ 253.544608] io_submit_sqes (fs/io_uring.c:?) [ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri ---truncado---"}], "id": "CVE-2022-48937", "lastModified": "2024-08-22T19:07:28.567", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-08-22T04:15:17.137", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4a93c6594613c3429b6f30136fff115c7f803af4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f3cc3c5bc43d03b5748ac4fb8d180084952c36a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c718ea4e7382e18957ed0e88a5f855e2122d9c00"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f240762f88b4b1b58561939ffd44837759756477"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: io_uring: add a schedule point in io_add_buffers()", "id": "2307193", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2307193"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nio_uring: add a schedule point in io_add_buffers()\nLooping ~65535 times doing kmalloc() calls can trigger soft lockups,\nespecially with DEBUG features (like KASAN).\n[ 253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]\n[ 253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)\n[ 253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S O 5.17.0-smp-DEV #801\n[ 253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)\n[ 253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40\n[ 253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246\n[ 253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001\n[ 253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a\n[ 253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004\n[ 253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380\n[ 253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0\n[ 253.544483] FS: 00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000\n[ 253.544486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0\n[ 253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 253.544494] Call Trace:\n[ 253.544496] <TASK>\n[ 253.544498] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544505] __kernel_text_address (kernel/extable.c:78)\n[ 253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)\n[ 253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)\n[ 253.544517] ? io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544521] stack_trace_save (kernel/stacktrace.c:123)\n[ 253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)\n[ 253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544544] ? __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544551] __kasan_kmalloc (mm/kasan/common.c:524)\n[ 253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)\n[ 253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)\n[ 253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)\n[ 253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)\n[ 253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)\n[ 253.544578] ? io_submit_sqes (fs/io_uring.c:7441)\n[ 253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)\n[ 253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)\n[ 253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)\n[ 253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)\n[ 253.544596] __io_queue_sqe (fs/io_uring.c:?)\n[ 253.544600] io_queue_sqe (fs/io_uring.c:7143)\n[ 253.544603] io_submit_sqe (fs/io_uring.c:?)\n[ 253.544608] io_submit_sqes (fs/io_uring.c:?)\n[ 253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uri\n---truncated---", "A vulnerability was found in the Linux kernel\u2019s io_uring subsystem, specifically within the io_add_buffers() function. This issue could lead to soft lockups by repeatedly invoking kmalloc() in a loop of around 65,535 iterations, especially when debugging features like KASAN are enabled. Symptoms included the kernel watchdog reporting that a CPU was stuck for extended periods."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-48937", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48937\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48937\nhttps://lore.kernel.org/linux-cve-announce/2024082225-CVE-2022-48937-d289@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}