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Thu, 18 Apr 2024 00:08:21 +0200 Message-ID: <143afb82-dcc4-4fd3-a851-a03b01532694@gmx.de> Date: Thu, 18 Apr 2024 00:08:22 +0200 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] firmware: dmi: Stop decoding on broken entry Content-Language: de-DE To: Jean Delvare Cc: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, Michael Kelley References: From: Michael Schierl Autocrypt: addr=schierlm@gmx.de; keydata= xsFNBF+amRYBEACvwIMUTYHep294xNuk+jKA63GkZl7D3SlI4LbzJt1Cm4AvT/mQ5/UV3bAG VeB6iXDeCH28bQNXd4DymSMEzgXVkmcNws4MzFhhA/mbRuVntN8G6zGnAJb9NerBLwhEcSzN vCG7FnUKOLs+z75rQfyuBpYnzMj5prrFvCBW/3fBElajvLbDT/ZRdU7QqFmCVy7dtdk++tz+ 5pZzN4Tfy2f+DVsvdWjrQ0NX8J0FsI5QtdRLHP3oRJLTuNl7Vff6CE/wPnvFQQjguoapolFz jQFX5krR2C8axNg00qIMviGpio/AAI6La1QdSP/CpcD2QfzZPIdIaQy4yUCE/BoTBPgZWdC5 zwhmpN/qfSBs5QtUacL/4I+knomX/XyIqZNWqoVZ8FkX7i8AZO4ymuBwx8wZP5XUZwM6rzAd MMEKWrWWvks67uYmEuL4isP9QhZmG7EniWVt7is+X/alCT9cULEg+sXhHW4NOhCNlg020Bdg CHmdo7RecGqzKFIE/3RgYm+TwKc3YU/bgslIPu6Qz+Qqvz10Y4DFpyuNH6yOJMdRjpYpXYSF 6EjkFdFJKBmdpbYx08QRjPaQzt6ZYLEVm/bFhtyoBE9fyLLOjt/kERoMs+Ho4uNpjPKFfFR8 UD/SMkP7AaztCaQJT8EtczAXOtLdVar9+7143jEUuJlgg232SQARAQABzS9NaWNoYWVsIFNj aGllcmwgKFRodW5kZXJiaXJkKSA8c2NoaWVybG1AZ214LmRlPsLBlAQTAQgAPhYhBDX8Kw94 NM6vtg6y281NaFzbm/3GBQJlHx1cAhsDBQkJRv/KBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheA AAoJEM1NaFzbm/3GlIkQAIXZGienuIciGMXWcvRwDSjtm+tgoTXoyFCQKuhoa2EArpa5mRQS EXZ/68jdeaEoHii4u8utNSccLUVtM8DQTGOhuwhdjDYN2a9YcUtyVCoHuE9kqd6yURzu8uEU cb3ViQUDEkv3s0ZTty4VYuEYnV+BrhFMOvfY13HsMZQ+HNpqOt+3FjB17YBXyUc84RRanmIX BcLTW+LB/y+jpWaK6CvP7Mpst3HAXTl2fp/lERGLkDjFABqgbTxAvZG9baigUoFjrhniuukw 7dZ0T7fwjDNvMRXFU4sigP77l9vwMqGwCrykYm0KnxtdWNM8mu8iPfHZyZTHv5siYv1URovx abh/6e0sDJKPipsWTIbD9AokYPzbinJNs9iVly5aAFQuo53hUnSxxjoWTPLtbgoAV4TBuScJ h40ij1cgq7cJgFORb/FhuNjgv/SJhQaL/YWBgywxI4XdMTj5mh5vIhJnewTiaLrSxDGm2aTQ O+T1r96052STv/yz8hFT2N1pMxXGtHONjQzrGyqg4b8oaBUv/qTCYGAJmFDCy5UC1awPuRcp pTmW5U75XjdxjO1pVxrZfWTMYy4I02XlEb6zisWZpwrq14rcl1C2XyNtD/q5I0q3MgKXpzxT AHSuS/IMrYHpCi4gkFDCuEQIa9QM33kPh6eAIL6zevBe1XnU1FIuk/y0zsFNBF+amRYBEACo T8ZSaqeSZ6RxkNu5f9e+Cnlvyc1R+UJUTD34nQMDzupXbbo8xCEjF6AefjopsOQ/6w4P5shd 2RGlt2cUxq4RaNlogJSwXL8wzPJSkROtDrhYMBtLiZI6XK6H6IAlnkEZIvzZCVd0y1muhKXw C5x/9aKPkWFDVfpXvSHQ9chGOWVu6QiWHVSgg/y0+cATbun1gv/zkwD+pu1N6uZdlTw34uL/ I2MRkuJIbb4M904y548aHXMDCILBRH26VQ5LwJ2jd0HblZEt+O+I6J7OovzAkFZTHu/2RvX7 Sr2rN5XIMYTKApe+nqLW3nbCD526TX5mh99+4R6nQE+A2CF4Z1uBfXkVIZftWQ4zv6qJiqrm fCFH0uOcgN/Lrz8yz3iGZ/+cbV0B4IWeZq0EVHuKzD9mZyM2j7Y6Ih1gGIqfokNgueUh/hyv DY4fEW4QZQfGwXDCxUY44dmFAcfA941S7EWDp1XqtSS4COtejPzIud3zsGnpOQRJi2s4oUOn HHVr5TdDIRD7zu0hiOkv5C4k1PNJ68goMeu1FJzFcZDOd7sZ0x71OPi4FZ10hmTAB1Op+kiu RYoNuUfCA0xwZsGF7KUdIm/Qg69FIVCAPa6Vd2rTXIbB7pgmi595wVWObaSRYrwyBbUDCfMu K1BHqMUxwnZMYcELVYAkRq3U3uL7EihvaQARAQABwsF8BBgBCAAmFiEENfwrD3g0zq+2DrLb zU1oXNub/cYFAmUfHV0CGwwFCQlG/8oACgkQzU1oXNub/ca6vRAAlKbBvN7QJz5x1mPooqY0 qz6+yJVYA4wWCFEWfdOF4oIDXR6WJpt09UNrp7JUNF2NtCZAoLdHMACMAaGM+9Ujrz93hZPP tRca7gyyolWHVIAz+setuGU9UDC9ut4MpolZbhbDunX6Ris8mkoQoWU7FgfQ8TOGTIhaPb2G rLWAIs6Qc5jtoIItnc8bbebZGn7drGKY7FFqOsggERR/6oO/mkcP3NL+5NAAX6p2w1fVLmrV D21olKqOBmSK/DS2UAKf22/MxsT0/3IKxrcL8sOqHkQ2TaDTysdWVyF1gTo9YUlbw6y/omzZ irDlwcCAxPSG2ysiDQTK/jWhmsPMZ5QclsC5/DBi369zZfVyzU6tIylThddxM+EV+l9GWPm+ wTTrVT9VStkm2nQFIfOfZrmAX7o0hNiK+cB8u8EFni1MrMk+BY5EskFRcxq97+nhFZ3z0I6q obUwLL0gH1iO/zFXdStHju7NV5d9V/OXwPMcRvSNOBPoC2b6ekP7iN0RUwBHCyNrL2Vu3LHy BwZ3jk6JR+xhRvVn2gXIMKA6qJ5XEhzGjKYYg7MnbA73jXuaa8RIvWJbMmnzkk57czt+Nycz X/YlaN5mlntK0gHYX29ddh59l2atvpzOiOi9uiRMJI6ZI+jy141kvQTgjnxUOS9mQN853jLL uxTR60TDY/d6Kz8= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:dIKsefGdEySh3Ykba5hNpP8J0uk+A9B0UDyZ93+aL//4edatlHv mL1GzioOT3Wbi7U1aYxhk+97wyyOEkT5/tyhhLv0Sos5FGwfUJuqEjc3AXedmmI+b13zjVi B8rxVIzwapQDYWNxw/MkEUmuvfaflQ0T1Qk+N+Z0ctHg/vi+afxwcF1V4kKibv0GvOGrR9r JwG8UUYJlsYvxN7Owz4aA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:rcZhV4wFv+0=;HnOqxM3K3kp9qAvmz3WXmQ1gyWh PLDLt5gH1pFRY6oIWjYMScD2GV7Oq9OJ+pt7Ufeo+IIXpZKkZNMQwuhNMgguVYPNluxaHl80M gFnZPE9TgA94MCOlj0U9BTaP/dq6I1O09TfklOHQ37hNvAk9zv/ohkxjcuWdz4WwfQ43p0l1i dHAsi67wxdyB0m8Ke3X9MrJUhChCv48l+ujhLdJWkIXHUQfYTu3vOfRHljDY2PFwYbrchOEHB CLOSeu6i05SHeWr9fvHmzuTKUiNL/VdSt0ansuSBadfx3a59g/+4QmrVKiBhSGTryAfOMdEg8 BGUFgWQeHZftMG5z/Bf7keC3bZajYaff/VPhxQHxVMbsY4ymJhjPuPdJGg4CznwbfoPfba8JS NQKZQXH3VfOO/t2NfVE4FtBMus6XVgisgxOHisQKFfDoCNchU5z9NUL27PSCus7PfKB5peHm2 1o9jgHU686R+dhi4+pUXsMagVdM5pQPCoOYF702nAmA9cYChXtfwUjv2CO9tMlukc4NWY44ju kZ/CVl7HjirY7SjCmfmvp1jveU9LTD61T33QcbKjkLJtVlBiNaadD/NaCTV2ht6iDWH6+jvUZ 0/VRtw0xQHa4ODFz/iZkutdOJ7Z6UQnYHtqCGUmUYBwkDh9D6iS3DR9o353KE/2FwykDnkQB4 u51hPZu8pkPTGvw4z/zOqGuHE6A7I/hzE6EjlBVmE6Y9GjtH4IfbwkiXVEwLaSZCIEKI3WQgb r0cMz5JiFp/5IdRrmCgRRBQCpsw6N7hU7UtU+tKrMdrlZ07EaHnuAywV7Tg1TkT4OZE549EOG 7rVcq2FJXIFfoxeheCuN/sa/ZZ95Hyg8XEkmlYUGuWYUE= Hello, Am 17.04.2024 um 17:33 schrieb Jean Delvare: > If a DMI table entry is shorter than 4 bytes, it is invalid. Due to > how DMI table parsing works, it is impossible to safely recover from > such an error, so we have to stop decoding the table. > > Signed-off-by: Jean Delvare > Link: https://lore.kernel.org/linux-kernel/Zh2K3-HLXOesT_vZ@liuwe-devbox= -debian-v2/T/ > --- > Michael, can you please test this patch and confirm that it prevents > the early oops? Tested-By: Michael Schierl Applied on top of 6.8.4, it prevents the early oops I previously observed when booting with 2 vCPUs. Regards, Michael