CVE-2023-52907 (GCVE-0-2023-52907)

Vulnerability from cvelistv5 – Published: 2024-08-21 06:10 – Updated: 2026-08-05 09:11
VLAI
Title
nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame() Fix a use-after-free that occurs in hcd when in_urb sent from pn533_usb_send_frame() is completed earlier than out_urb. Its callback frees the skb data in pn533_send_async_complete() that is used as a transfer buffer of out_urb. Wait before sending in_urb until the callback of out_urb is called. To modify the callback of out_urb alone, separate the complete function of out_urb and ack_urb. Found by a modified version of syzkaller. BUG: KASAN: use-after-free in dummy_timer Call Trace: memcpy (mm/kasan/shadow.c:65) dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352) transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453) dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972) arch_static_branch (arch/x86/include/asm/jump_label.h:27) static_key_false (include/linux/jump_label.h:207) timer_expire_exit (include/trace/events/timer.h:127) call_timer_fn (kernel/time/timer.c:1475) expire_timers (kernel/time/timer.c:1519) __run_timers (kernel/time/timer.c:1790) run_timer_softirq (kernel/time/timer.c:1803)
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 35529d6b827eedb6bf7e81130e4b7e0aba9e58d2 (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 321db5131c92983dac4f3338e8fbb6df214238c0 (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 9424d2205fe94a095fb9365ec0c6137f0b394a2b (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 0ca78c99656f5c448567db1e148367aa3b01c80a (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 39ae73e581112cfe27ba50aecb1c891ce57cecb1 (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 8998db5021a28ad67aa8d627bdb4226e4046ccc4 (git)
Affected: c46ee38620a2aa2b25b16bc9738ace80dbff76a4 , < 9dab880d675b9d0dd56c6428e4e8352a3339371d (git)
Create a notification for this product.
Linux Linux Affected: 3.1
Unaffected: 0 , < 3.1 (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.164 , ≤ 5.10.* (semver)
Unaffected: 5.15.89 , ≤ 5.15.* (semver)
Unaffected: 6.1.7 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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              "value": "AV:L - The bug is reached via the local NFC control path (netlink GENL ops and AF_NFC sockets) that drives pn533_usb_send_frame() on an attached PN533 USB reader; a local attacker issues those host-side commands rather than exploiting a remote network service.\nAC:L - The race is between out_urb and in_urb completion that the attacker influences by submitting NFC/USB traffic (and fully controls with a USB gadget/dummy_hcd as in the syzkaller report), so success does not depend on conditions outside attacker influence.\nPR:L - Although NFC_CMD_DEV_UP/START_POLL require CAP_NET_ADMIN in the init user namespace, once a reader is up with targets an unprivileged AF_NFC SOCK_SEQPACKET client can connect, activate, and send data into pn533_transceive()/send_frame without further capabilities.\nUI:N - No separate victim action is required; exploitation proceeds by issuing NFC commands against an already-present PN533 USB device (or during automatic probe/setup traffic).\nS:U - This is a host-kernel UAF in the PN533 USB transport with impact confined to the same kernel authority; it is not a VM/IOMMU/sandbox boundary escape.\nC:H - The UAF frees the skb backing out_urb\u0027s transfer_buffer while the HCD still reads it, enabling heap-reuse disclosure of kernel memory (including to a colluding USB endpoint) per UAF scoring guidance.\nI:H - Use-after-free of the in-flight USB transfer buffer is memory corruption that can be leveraged via heap reuse for integrity compromise and control-flow hijacking under standard UAF exploitation.\nA:H - The same UAF triggers KASAN reports/oopses and unstable USB HCD access to freed memory, so availability impact is a kernel crash or hang."
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      "id": "CVE-2023-52907",
      "lastModified": "2024-09-12T16:06:17.460",
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      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52907\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T07:15:06.733\",\"lastModified\":\"2026-08-04T10:18:48.300\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()\\n\\nFix a use-after-free that occurs in hcd when in_urb sent from\\npn533_usb_send_frame() is completed earlier than out_urb. Its callback\\nfrees the skb data in pn533_send_async_complete() that is used as a\\ntransfer buffer of out_urb. Wait before sending in_urb until the\\ncallback of out_urb is called. To modify the callback of out_urb alone,\\nseparate the complete function of out_urb and ack_urb.\\n\\nFound by a modified version of syzkaller.\\n\\nBUG: KASAN: use-after-free in dummy_timer\\nCall Trace:\\n memcpy (mm/kasan/shadow.c:65)\\n dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)\\n transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)\\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)\\n arch_static_branch (arch/x86/include/asm/jump_label.h:27)\\n static_key_false (include/linux/jump_label.h:207)\\n timer_expire_exit (include/trace/events/timer.h:127)\\n call_timer_fn (kernel/time/timer.c:1475)\\n expire_timers (kernel/time/timer.c:1519)\\n __run_timers (kernel/time/timer.c:1790)\\n run_timer_softirq (kernel/time/timer.c:1803)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: nfc: pn533: espere a que se complete out_urb en pn533_usb_send_frame() Se corrige un use-after-free que ocurre en hcd cuando in_urb enviado desde pn533_usb_send_frame() se completa antes que out_urb. Su devoluci\u00f3n de llamada libera los datos de skb en pn533_send_async_complete() que se utilizan como b\u00fafer de transferencia de out_urb. Espere antes de enviar in_urb hasta que se llame a la devoluci\u00f3n de llamada de out_urb. Para modificar la devoluci\u00f3n de llamada de out_urb solo, separe la funci\u00f3n completa de out_urb y ack_urb. Encontrado por una versi\u00f3n modificada de syzkaller. ERROR: KASAN: use-after-free en dummy_timer Rastreo de llamadas: memcpy (mm/kasan/shadow.c:65) dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352) transfer (drivers/usb/gadget/ udc/dummy_hcd.c:1453) dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972) arch_static_branch (arch/x86/include/asm/jump_label.h:27) static_key_false (include/linux/jump_label.h: 207) timer_expire_exit (include/trace/events/timer.h:127) call_timer_fn (kernel/time/timer.c:1475) expire_timers (kernel/time/timer.c:1519) __run_timers (kernel/time/timer.c: 1790) run_timer_softirq (n\u00facleo/hora/timer.c:1803)\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/nfc/pn533/usb.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"35529d6b827eedb6bf7e81130e4b7e0aba9e58d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"321db5131c92983dac4f3338e8fbb6df214238c0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"9424d2205fe94a095fb9365ec0c6137f0b394a2b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"0ca78c99656f5c448567db1e148367aa3b01c80a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"39ae73e581112cfe27ba50aecb1c891ce57cecb1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"8998db5021a28ad67aa8d627bdb4226e4046ccc4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\",\"lessThan\":\"9dab880d675b9d0dd56c6428e4e8352a3339371d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/nfc/pn533/usb.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.303\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.270\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.229\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.164\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.89\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.7\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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\":\"2024-09-10T16:03:08.481823Z\",\"id\":\"CVE-2023-52907\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.1\",\"versionEndExcluding\":\"4.14.303\",\"matchCriteriaId\":\"832DF899-7836-4E2B-B197-9DC370060351\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.270\",\"matchCriteriaId\":\"AE8904A3-99BE-4E49-9682-1F90A6373F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.229\",\"matchCriteriaId\":\"A0C0D95E-414A-445E-941B-3EF6A4D3A093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.164\",\"matchCriteriaId\":\"CA742E66-32D2-459E-AB19-171C4DB3B1F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.89\",\"matchCriteriaId\":\"E706841F-E788-4316-9B05-DA8EB60CE6B3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.7\",\"matchCriteriaId\":\"9275C81F-AE96-4CDB-AD20-7DBD36E5D909\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF501633-2F44-4913-A8EE-B021929F49F6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"2BDA597B-CAC1-4DF0-86F0-42E142C654E9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"725C78C9-12CE-406F-ABE8-0813A01D66E8\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:24:35+00:00",
      "cve": "CVE-2023-52907",
      "id": "CVE-2023-52907",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52907.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T00:06:34Z",
      "cve": "CVE-2023-52907",
      "id": "CVE-2023-52907",
      "initial_release_date": "2024-08-22T03:14:31Z",
      "product_status:known_affected": "425",
      "product_status:known_not_affected": "76",
      "product_status:recommended": "495",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52907",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52907.json",
      "version": "56"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52907\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:03:08.481823Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:18.145Z\"}}], \"cna\": {\"title\": \"nfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The bug is reached via the local NFC control path (netlink GENL ops and AF_NFC sockets) that drives pn533_usb_send_frame() on an attached PN533 USB reader; a local attacker issues those host-side commands rather than exploiting a remote network service.\\nAC:L - The race is between out_urb and in_urb completion that the attacker influences by submitting NFC/USB traffic (and fully controls with a USB gadget/dummy_hcd as in the syzkaller report), so success does not depend on conditions outside attacker influence.\\nPR:L - Although NFC_CMD_DEV_UP/START_POLL require CAP_NET_ADMIN in the init user namespace, once a reader is up with targets an unprivileged AF_NFC SOCK_SEQPACKET client can connect, activate, and send data into pn533_transceive()/send_frame without further capabilities.\\nUI:N - No separate victim action is required; exploitation proceeds by issuing NFC commands against an already-present PN533 USB device (or during automatic probe/setup traffic).\\nS:U - This is a host-kernel UAF in the PN533 USB transport with impact confined to the same kernel authority; it is not a VM/IOMMU/sandbox boundary escape.\\nC:H - The UAF frees the skb backing out_urb\u0027s transfer_buffer while the HCD still reads it, enabling heap-reuse disclosure of kernel memory (including to a colluding USB endpoint) per UAF scoring guidance.\\nI:H - Use-after-free of the in-flight USB transfer buffer is memory corruption that can be leveraged via heap reuse for integrity compromise and control-flow hijacking under standard UAF exploitation.\\nA:H - The same UAF triggers KASAN reports/oopses and unstable USB HCD access to freed memory, so availability impact is a kernel crash or hang.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"35529d6b827eedb6bf7e81130e4b7e0aba9e58d2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"321db5131c92983dac4f3338e8fbb6df214238c0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"9424d2205fe94a095fb9365ec0c6137f0b394a2b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"0ca78c99656f5c448567db1e148367aa3b01c80a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"39ae73e581112cfe27ba50aecb1c891ce57cecb1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"8998db5021a28ad67aa8d627bdb4226e4046ccc4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c46ee38620a2aa2b25b16bc9738ace80dbff76a4\", \"lessThan\": \"9dab880d675b9d0dd56c6428e4e8352a3339371d\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/nfc/pn533/usb.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.303\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.270\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.229\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.164\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.89\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/nfc/pn533/usb.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2\"}, {\"url\": \"https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0\"}, {\"url\": \"https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b\"}, {\"url\": \"https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a\"}, {\"url\": \"https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1\"}, {\"url\": \"https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4\"}, {\"url\": \"https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()\\n\\nFix a use-after-free that occurs in hcd when in_urb sent from\\npn533_usb_send_frame() is completed earlier than out_urb. Its callback\\nfrees the skb data in pn533_send_async_complete() that is used as a\\ntransfer buffer of out_urb. Wait before sending in_urb until the\\ncallback of out_urb is called. To modify the callback of out_urb alone,\\nseparate the complete function of out_urb and ack_urb.\\n\\nFound by a modified version of syzkaller.\\n\\nBUG: KASAN: use-after-free in dummy_timer\\nCall Trace:\\n memcpy (mm/kasan/shadow.c:65)\\n dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)\\n transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)\\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)\\n arch_static_branch (arch/x86/include/asm/jump_label.h:27)\\n static_key_false (include/linux/jump_label.h:207)\\n timer_expire_exit (include/trace/events/timer.h:127)\\n call_timer_fn (kernel/time/timer.c:1475)\\n expire_timers (kernel/time/timer.c:1519)\\n __run_timers (kernel/time/timer.c:1790)\\n run_timer_softirq (kernel/time/timer.c:1803)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.303\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.270\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.229\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.164\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.89\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.7\", \"versionStartIncluding\": \"3.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"3.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T09:11:54.905Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52907\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T09:11:54.905Z\", \"dateReserved\": \"2024-08-21T06:07:11.015Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-21T06:10:48.171Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.