CVE-2026-68188

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68188", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.373Z", "datePublished": "2026-08-10T12:00:00.521Z", "dateUpdated": "2026-11-06T16:45:01.235Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:30:59.491Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: Fix session UAF in set_termios\n\nrfcomm_tty_set_termios() tests dlc->session without rfcomm_mutex and\nlater passes the pointer to rfcomm_send_rpn(). The latter dereferences\nboth session->initiator and session->sock. Meanwhile, krfcommd can\nunlink the DLC and free the session while holding rfcomm_mutex.\n\nThe race can proceed as follows:\n\n TTY ioctl task krfcommd\n -------------- --------\n load dlc->session\n enter rfcomm_send_rpn()\n lock rfcomm_mutex\n clear dlc->session\n free session\n unlock rfcomm_mutex\n read session->initiator\n\nKASAN reported:\n\n BUG: KASAN: slab-use-after-free in rfcomm_send_rpn+0x297/0x2a0\n Read of size 4 at addr ffff88810012a850 by task poc/92\n\n Call Trace:\n rfcomm_send_rpn+0x297/0x2a0\n rfcomm_tty_set_termios+0x50d/0x850\n tty_set_termios+0x596/0x950\n set_termios+0x46a/0x6e0\n tty_mode_ioctl+0x152/0xbd0\n tty_ioctl+0x915/0x1240\n __x64_sys_ioctl+0x134/0x1c0\n\n Allocated by task 92:\n rfcomm_session_add+0x9e/0x2e0\n rfcomm_dlc_open+0x8b1/0xe00\n rfcomm_dev_activate+0x85/0x1a0\n rfcomm_tty_open+0x90/0x280\n\n Freed by task 68:\n kfree+0x131/0x3c0\n rfcomm_session_del+0x119/0x180\n rfcomm_run+0x737/0x4710\n\nAdd rfcomm_dlc_send_rpn(), which holds rfcomm_mutex while it verifies\nthat the DLC is still attached and sends the RPN frame. Have the TTY\npath use the helper and drop its unlocked session check. This keeps the\nsession valid through both the frame construction and socket send."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "versions": [{"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "4eac4576a072084b06459de6c054b4ebc764b4ea", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "82c383f9031f1ce919ac6c3c06bc5bd492a6b078", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "c5c060597247131f90f39ea7c8c978fa0c2e79d0", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "2894bd8c68e97accd758ca6e5fc375d7e9e8882c", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "a82a9d3891f5607030b0672c255087a12bb9837b", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "780b04d09c941262ee2a2b4a09906451b69df8a6", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea", "status": "affected", "versionType": "git"}, {"version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "c783399efc22d035443f1dfbf2a09bf9562aaa5e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "versions": [{"version": "2.6.14", "status": "affected"}, {"version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "2.6.14", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4eac4576a072084b06459de6c054b4ebc764b4ea"}, {"url": "https://git.kernel.org/stable/c/82c383f9031f1ce919ac6c3c06bc5bd492a6b078"}, {"url": "https://git.kernel.org/stable/c/c5c060597247131f90f39ea7c8c978fa0c2e79d0"}, {"url": "https://git.kernel.org/stable/c/2894bd8c68e97accd758ca6e5fc375d7e9e8882c"}, {"url": "https://git.kernel.org/stable/c/a82a9d3891f5607030b0672c255087a12bb9837b"}, {"url": "https://git.kernel.org/stable/c/780b04d09c941262ee2a2b4a09906451b69df8a6"}, {"url": "https://git.kernel.org/stable/c/98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea"}, {"url": "https://git.kernel.org/stable/c/c783399efc22d035443f1dfbf2a09bf9562aaa5e"}], "title": "Bluetooth: RFCOMM: Fix session UAF in set_termios", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": 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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68188", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:44:10.338418Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:44:11.703Z"}}], "cna": {"title": "Bluetooth: RFCOMM: Fix session UAF in set_termios", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "4eac4576a072084b06459de6c054b4ebc764b4ea", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "82c383f9031f1ce919ac6c3c06bc5bd492a6b078", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "c5c060597247131f90f39ea7c8c978fa0c2e79d0", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "2894bd8c68e97accd758ca6e5fc375d7e9e8882c", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "a82a9d3891f5607030b0672c255087a12bb9837b", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "780b04d09c941262ee2a2b4a09906451b69df8a6", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea", "versionType": "git"}, {"status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "lessThan": "c783399efc22d035443f1dfbf2a09bf9562aaa5e", "versionType": "git"}], "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.14"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.14", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.265", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.216", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.183", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.148", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.101", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.42", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.6", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/4eac4576a072084b06459de6c054b4ebc764b4ea"}, {"url": "https://git.kernel.org/stable/c/82c383f9031f1ce919ac6c3c06bc5bd492a6b078"}, {"url": "https://git.kernel.org/stable/c/c5c060597247131f90f39ea7c8c978fa0c2e79d0"}, {"url": "https://git.kernel.org/stable/c/2894bd8c68e97accd758ca6e5fc375d7e9e8882c"}, {"url": "https://git.kernel.org/stable/c/a82a9d3891f5607030b0672c255087a12bb9837b"}, {"url": "https://git.kernel.org/stable/c/780b04d09c941262ee2a2b4a09906451b69df8a6"}, {"url": "https://git.kernel.org/stable/c/98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea"}, {"url": "https://git.kernel.org/stable/c/c783399efc22d035443f1dfbf2a09bf9562aaa5e"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: Fix session UAF in set_termios\n\nrfcomm_tty_set_termios() tests dlc->session without rfcomm_mutex and\nlater passes the pointer to rfcomm_send_rpn(). The latter dereferences\nboth session->initiator and session->sock. Meanwhile, krfcommd can\nunlink the DLC and free the session while holding rfcomm_mutex.\n\nThe race can proceed as follows:\n\n TTY ioctl task krfcommd\n -------------- --------\n load dlc->session\n enter rfcomm_send_rpn()\n lock rfcomm_mutex\n clear dlc->session\n free session\n unlock rfcomm_mutex\n read session->initiator\n\nKASAN reported:\n\n BUG: KASAN: slab-use-after-free in rfcomm_send_rpn+0x297/0x2a0\n Read of size 4 at addr ffff88810012a850 by task poc/92\n\n Call Trace:\n rfcomm_send_rpn+0x297/0x2a0\n rfcomm_tty_set_termios+0x50d/0x850\n tty_set_termios+0x596/0x950\n set_termios+0x46a/0x6e0\n tty_mode_ioctl+0x152/0xbd0\n tty_ioctl+0x915/0x1240\n __x64_sys_ioctl+0x134/0x1c0\n\n Allocated by task 92:\n rfcomm_session_add+0x9e/0x2e0\n rfcomm_dlc_open+0x8b1/0xe00\n rfcomm_dev_activate+0x85/0x1a0\n rfcomm_tty_open+0x90/0x280\n\n Freed by task 68:\n kfree+0x131/0x3c0\n rfcomm_session_del+0x119/0x180\n rfcomm_run+0x737/0x4710\n\nAdd rfcomm_dlc_send_rpn(), which holds rfcomm_mutex while it verifies\nthat the DLC is still attached and sends the RPN frame. Have the TTY\npath use the helper and drop its unlocked session check. This keeps the\nsession valid through both the frame construction and socket send."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "2.6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "2.6.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:30:59.491Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68188", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:45:01.235Z", "dateReserved": "2026-07-30T09:28:09.373Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-10T12:00:00.521Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4eac4576a072084b06459de6c054b4ebc764b4ea", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "82c383f9031f1ce919ac6c3c06bc5bd492a6b078", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "c5c060597247131f90f39ea7c8c978fa0c2e79d0", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "2894bd8c68e97accd758ca6e5fc375d7e9e8882c", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "a82a9d3891f5607030b0672c255087a12bb9837b", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "780b04d09c941262ee2a2b4a09906451b69df8a6", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}, {"lessThan": "c783399efc22d035443f1dfbf2a09bf9562aaa5e", "status": "affected", "version": "3a5e903c09aed19ca4a1bb26d87b8d6461a93818", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/net/bluetooth/rfcomm.h", "net/bluetooth/rfcomm/core.c", "net/bluetooth/rfcomm/tty.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.14"}, {"lessThan": "2.6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: Fix session UAF in set_termios\n\nrfcomm_tty_set_termios() tests dlc->session without rfcomm_mutex and\nlater passes the pointer to rfcomm_send_rpn(). The latter dereferences\nboth session->initiator and session->sock. Meanwhile, krfcommd can\nunlink the DLC and free the session while holding rfcomm_mutex.\n\nThe race can proceed as follows:\n\n TTY ioctl task krfcommd\n -------------- --------\n load dlc->session\n enter rfcomm_send_rpn()\n lock rfcomm_mutex\n clear dlc->session\n free session\n unlock rfcomm_mutex\n read session->initiator\n\nKASAN reported:\n\n BUG: KASAN: slab-use-after-free in rfcomm_send_rpn+0x297/0x2a0\n Read of size 4 at addr ffff88810012a850 by task poc/92\n\n Call Trace:\n rfcomm_send_rpn+0x297/0x2a0\n rfcomm_tty_set_termios+0x50d/0x850\n tty_set_termios+0x596/0x950\n set_termios+0x46a/0x6e0\n tty_mode_ioctl+0x152/0xbd0\n tty_ioctl+0x915/0x1240\n __x64_sys_ioctl+0x134/0x1c0\n\n Allocated by task 92:\n rfcomm_session_add+0x9e/0x2e0\n rfcomm_dlc_open+0x8b1/0xe00\n rfcomm_dev_activate+0x85/0x1a0\n rfcomm_tty_open+0x90/0x280\n\n Freed by task 68:\n kfree+0x131/0x3c0\n rfcomm_session_del+0x119/0x180\n rfcomm_run+0x737/0x4710\n\nAdd rfcomm_dlc_send_rpn(), which holds rfcomm_mutex while it verifies\nthat the DLC is still attached and sends the RPN frame. Have the TTY\npath use the helper and drop its unlocked session check. This keeps the\nsession valid through both the frame construction and socket send."}], "id": "CVE-2026-68188", "lastModified": "2026-11-06T17:19:21.530", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68188", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:44:10.338418Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:06.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2894bd8c68e97accd758ca6e5fc375d7e9e8882c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4eac4576a072084b06459de6c054b4ebc764b4ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/780b04d09c941262ee2a2b4a09906451b69df8a6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82c383f9031f1ce919ac6c3c06bc5bd492a6b078"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a82a9d3891f5607030b0672c255087a12bb9837b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5c060597247131f90f39ea7c8c978fa0c2e79d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c783399efc22d035443f1dfbf2a09bf9562aaa5e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios", "id": "2513222", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513222"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.8", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-364", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: RFCOMM: Fix session UAF in set_termios\nrfcomm_tty_set_termios() tests dlc->session without rfcomm_mutex and\nlater passes the pointer to rfcomm_send_rpn(). The latter dereferences\nboth session->initiator and session->sock. Meanwhile, krfcommd can\nunlink the DLC and free the session while holding rfcomm_mutex.\nThe race can proceed as follows:\nTTY ioctl task krfcommd\n-------------- --------\nload dlc->session\nenter rfcomm_send_rpn()\nlock rfcomm_mutex\nclear dlc->session\nfree session\nunlock rfcomm_mutex\nread session->initiator\nKASAN reported:\nBUG: KASAN: slab-use-after-free in rfcomm_send_rpn+0x297/0x2a0\nRead of size 4 at addr ffff88810012a850 by task poc/92\nCall Trace:\nrfcomm_send_rpn+0x297/0x2a0\nrfcomm_tty_set_termios+0x50d/0x850\ntty_set_termios+0x596/0x950\nset_termios+0x46a/0x6e0\ntty_mode_ioctl+0x152/0xbd0\ntty_ioctl+0x915/0x1240\n__x64_sys_ioctl+0x134/0x1c0\nAllocated by task 92:\nrfcomm_session_add+0x9e/0x2e0\nrfcomm_dlc_open+0x8b1/0xe00\nrfcomm_dev_activate+0x85/0x1a0\nrfcomm_tty_open+0x90/0x280\nFreed by task 68:\nkfree+0x131/0x3c0\nrfcomm_session_del+0x119/0x180\nrfcomm_run+0x737/0x4710\nAdd rfcomm_dlc_send_rpn(), which holds rfcomm_mutex while it verifies\nthat the DLC is still attached and sends the RPN frame. Have the TTY\npath use the helper and drop its unlocked session check. This keeps the\nsession valid through both the frame construction and socket send.", "A flaw was found in the Linux kernel's Bluetooth RFCOMM subsystem. A race condition in the `rfcomm_tty_set_termios()` function allows a session to be freed while it is still actively in use. This use-after-free (UAF) vulnerability can be exploited by a local attacker. Successful exploitation leads to a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-68188", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68188\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68188\nhttps://git.kernel.org/stable/c/2894bd8c68e97accd758ca6e5fc375d7e9e8882c\nhttps://git.kernel.org/stable/c/780b04d09c941262ee2a2b4a09906451b69df8a6\nhttps://git.kernel.org/stable/c/98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea\nhttps://git.kernel.org/stable/c/a82a9d3891f5607030b0672c255087a12bb9837b\nhttps://git.kernel.org/stable/c/c783399efc22d035443f1dfbf2a09bf9562aaa5e"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a5e903c09aed19ca4a1bb26d87b8d6461a93818,2894bd8c68e97accd758ca6e5fc375d7e9e8882c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a5e903c09aed19ca4a1bb26d87b8d6461a93818,a82a9d3891f5607030b0672c255087a12bb9837b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a5e903c09aed19ca4a1bb26d87b8d6461a93818,780b04d09c941262ee2a2b4a09906451b69df8a6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a5e903c09aed19ca4a1bb26d87b8d6461a93818,98bc68194e37bfa5e8ddc80b5c1eb0be4dc607ea)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3a5e903c09aed19ca4a1bb26d87b8d6461a93818,c783399efc22d035443f1dfbf2a09bf9562aaa5e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T14:30:04.129359+00:00", "updated": "2026-08-13T10:00:05.006092+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}