{"id":"CVE-2021-47153","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: i801: Don't generate an interrupt on bus reset\n\nNow that the i2c-i801 driver supports interrupts, setting the KILL bit\nin a attempt to recover from a timed out transaction triggers an\ninterrupt. Unfortunately, the interrupt handler (i801_isr) is not\nprepared for this situation and will try to process the interrupt as\nif it was signaling the end of a successful transaction. In the case\nof a block transaction, this can result in an out-of-range memory\naccess.\n\nThis condition was reproduced several times by syzbot:\nhttps://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e\nhttps://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e\nhttps://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e\nhttps://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb\nhttps://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a\nhttps://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79\n\nSo disable interrupts while trying to reset the bus. Interrupts will\nbe enabled again for the following transaction.","modified":"2026-03-15T22:43:06.494461Z","published":"2024-03-25T09:15:09.407Z","related":["ALSA-2024:3618","ALSA-2024:3627","SUSE-SU-2024:1454-1","SUSE-SU-2024:1465-1","SUSE-SU-2024:1489-1","SUSE-SU-2024:1643-1","SUSE-SU-2024:1646-1","SUSE-SU-2024:1870-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/1f583d3813f204449037cd2acbfc09168171362a"},{"type":"FIX","url":"https://git.kernel.org/stable/c/b523feb7e8e44652f92f3babb953a976e7ccbbef"},{"type":"FIX","url":"https://git.kernel.org/stable/c/c70e1ba2e7e65255a0ce004f531dd90dada97a8c"},{"type":"FIX","url":"https://git.kernel.org/stable/c/dfa8929e117b0228a7765f5c3f5988a4a028f3c6"},{"type":"FIX","url":"https://git.kernel.org/stable/c/e4d8716c3dcec47f1557024add24e1f3c09eb24b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/f9469082126cebb7337db3992d143f5e4edfe629"},{"type":"FIX","url":"https://git.kernel.org/stable/c/04cc05e3716ae31b17ecdab7bc55c8170def1b8b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"3.6"},{"fixed":"4.4.271"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.271"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.14.235"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.193"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.124"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.42"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.12.9"}]},{"events":[{"introduced":"0"},{"last_affected":"5.13-rc1"}]},{"events":[{"introduced":"0"},{"last_affected":"5.13-rc2"}]},{"events":[{"introduced":"0"},{"last_affected":"5.13-rc3"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47153.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}