diff for duplicates of <877dmlgnrf.fsf@keithp.com> diff --git a/a/content_digest b/N1/content_digest index 4061ea6..fd11b41 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -3,7 +3,7 @@ "ref\0CAFEAcA9LdZ=Ym_UQFwqMcrHv6pygdxZC+fgoc=N3mU484d-a_A@mail.gmail.com\0" "ref\087im65gxla.fsf@keithp.com\0" "ref\0CAFEAcA8DuMANP7-JF=bTDXG7uJF0q4HUQ2P4WOGvXAOWGtPYnA@mail.gmail.com\0" - "From\0Keith Packard <keithp@keithp.com>\0" + "From\0Keith Packard via <qemu-devel@nongnu.org>\0" "Subject\0Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" "Date\0Fri, 05 Mar 2021 15:54:28 -0800\0" "To\0Peter Maydell <peter.maydell@linaro.org>\0" @@ -57,4 +57,4 @@ "=Ck89\n" -----END PGP SIGNATURE----- -c8b44453f57537ea40fc90119ddadf1982af2b404b0b98518ae4b2556f5cc792 +74083d576bf926ed11c085d34b2cce3fc283f5fc29cf6010e7c294763e03cbc1
diff --git a/a/1.txt b/N2/1.txt index c6b5f84..723c1e0 100644 --- a/a/1.txt +++ b/N2/1.txt @@ -22,3 +22,43 @@ personally feel would offer much value). -- -keith + +-- +You received this bug notification because you are a member of qemu- +devel-ml, which is subscribed to QEMU. +https://bugs.launchpad.net/bugs/1915925 + +Title: + ARM semihosting HEAPINFO results wrote to wrong address + +Status in QEMU: + Confirmed + +Bug description: + This affects latest development branch of QEMU. + + According to the ARM spec of the HEAPINFO semihosting call: + + https://developer.arm.com/documentation/100863/0300/Semihosting- + operations/SYS-HEAPINFO--0x16-?lang=en + + > the PARAMETER REGISTER contains the address of a pointer to a four- + field data block. + + However, QEMU treated the PARAMETER REGISTER as pointing to a four- + field data block directly. + + Here is a simple program that can demonstrate this problem: + https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting- + newlib + + This code links with newlib with semihosting mode, which will call the + HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it + may crash the program either because of invalid write or memory + curruption, depending on the compiled program structure. + + Also refer to my discussion with newlib folks: + https://sourceware.org/pipermail/newlib/2021/018260.html + +To manage notifications about this bug go to: +https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions diff --git a/a/2.bin b/a/2.bin deleted file mode 100644 index f303690..0000000 --- a/a/2.bin +++ /dev/null @@ -1,16 +0,0 @@ ------BEGIN PGP SIGNATURE----- - -iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCxLQACgkQ2yIaaQAA -ABFHExAAnbnZUxZUu0+MzkWHrqiM5ddgv6bMmaklL47A1Jd/z2s/NOFqbqbMtfPY -lQeT9FZE5d23vOEGAY3/5LrK59vN1LXsr1/8IRkGd1/607rs3qEGICeFaqSxbZ8d -ixcE3ip7fVI6E2km7zVY6NWBHt8ungsv6ASMGjPGM8ekJMwSG3DvD61tW1bLhfPR -BzdOURsksPix9z7Gr8WnU/JqBsAohhAZ/h8/lc4UFF2qwvCpaiabrm1ww9cvcnxY -v2JRNv0NxIHtvTywz/UVXD9qpq/av2L/GRsym6exl/zph8svdS4R5UeIAYnsLxPz -f1spoWwb1sltd9CP++RFpXr0JsKc6X7Zgx/WZmvyA2iVYYncSVZkzhjlS74hfZ2Z -iCvQ716Z2Vq6Vn8/yNhwWEd1y/Qi+CxHHLYGuPvWCGbM4dXiUlMmSb0GeIEJP5EX -4rlz5jkaYzjHIGZW3rdIABIWVWiE1LO9sFhcC24y68gNEUt7tRRaUeGtXKDdiP11 -bVosRxdZ5BD2Ra6g8A7D4WrdcwrmxbokGuxlEZpabj5ovstb9MwmQ0M/IgD0cO4e -ZXVE2ai0yq8hscCm+QeKX9ptTFfxHw849dvcjuPxnGSMozYuE3P1OEn/iCRb7gCb -vsx23/Wf34VDv+oNvbuwnCLfqNS7LumCr3PGypZiZuSyWkJwxoU= -=Ck89 ------END PGP SIGNATURE----- diff --git a/a/2.hdr b/a/2.hdr deleted file mode 100644 index 5e5352c..0000000 --- a/a/2.hdr +++ /dev/null @@ -1 +0,0 @@ -Content-Type: application/pgp-signature; name="signature.asc" diff --git a/a/content_digest b/N2/content_digest index 4061ea6..a1d0ede 100644 --- a/a/content_digest +++ b/N2/content_digest @@ -1,17 +1,13 @@ - "ref\020210305135451.15427-1-alex.bennee@linaro.org\0" + "ref\0161356438332.24036.4652954745285513495.malonedeb@chaenomeles.canonical.com\0" "ref\020210305135451.15427-4-alex.bennee@linaro.org\0" "ref\0CAFEAcA9LdZ=Ym_UQFwqMcrHv6pygdxZC+fgoc=N3mU484d-a_A@mail.gmail.com\0" "ref\087im65gxla.fsf@keithp.com\0" "ref\0CAFEAcA8DuMANP7-JF=bTDXG7uJF0q4HUQ2P4WOGvXAOWGtPYnA@mail.gmail.com\0" - "From\0Keith Packard <keithp@keithp.com>\0" - "Subject\0Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" - "Date\0Fri, 05 Mar 2021 15:54:28 -0800\0" - "To\0Peter Maydell <peter.maydell@linaro.org>\0" - "Cc\0Alex Benn\303\251e <alex.bennee@linaro.org>" - QEMU Developers <qemu-devel@nongnu.org> - Bug 1915925 <1915925@bugs.launchpad.net> - " open list:ARM TCG CPUs <qemu-arm@nongnu.org>\0" - "\01:1\0" + "From\0Keith Packard <1915925@bugs.launchpad.net>\0" + "Subject\0[Bug 1915925] Re: [PATCH v1 3/3] semihosting/arg-compat: fix up handling of SYS_HEAPINFO\0" + "Date\0Fri, 05 Mar 2021 23:54:28 -0000\0" + "To\0qemu-devel@nongnu.org\0" + "\00:1\0" "b\0" "Peter Maydell <peter.maydell@linaro.org> writes:\n" "\n" @@ -36,25 +32,46 @@ "personally feel would offer much value).\n" "\n" "-- \n" - -keith - "\01:2\0" - "fn\0signature.asc\0" - "b\0" - "-----BEGIN PGP SIGNATURE-----\n" - "\n" - "iQIzBAEBCAAdFiEEw4O3eCVWE9/bQJ2R2yIaaQAAABEFAmBCxLQACgkQ2yIaaQAA\n" - "ABFHExAAnbnZUxZUu0+MzkWHrqiM5ddgv6bMmaklL47A1Jd/z2s/NOFqbqbMtfPY\n" - "lQeT9FZE5d23vOEGAY3/5LrK59vN1LXsr1/8IRkGd1/607rs3qEGICeFaqSxbZ8d\n" - "ixcE3ip7fVI6E2km7zVY6NWBHt8ungsv6ASMGjPGM8ekJMwSG3DvD61tW1bLhfPR\n" - "BzdOURsksPix9z7Gr8WnU/JqBsAohhAZ/h8/lc4UFF2qwvCpaiabrm1ww9cvcnxY\n" - "v2JRNv0NxIHtvTywz/UVXD9qpq/av2L/GRsym6exl/zph8svdS4R5UeIAYnsLxPz\n" - "f1spoWwb1sltd9CP++RFpXr0JsKc6X7Zgx/WZmvyA2iVYYncSVZkzhjlS74hfZ2Z\n" - "iCvQ716Z2Vq6Vn8/yNhwWEd1y/Qi+CxHHLYGuPvWCGbM4dXiUlMmSb0GeIEJP5EX\n" - "4rlz5jkaYzjHIGZW3rdIABIWVWiE1LO9sFhcC24y68gNEUt7tRRaUeGtXKDdiP11\n" - "bVosRxdZ5BD2Ra6g8A7D4WrdcwrmxbokGuxlEZpabj5ovstb9MwmQ0M/IgD0cO4e\n" - "ZXVE2ai0yq8hscCm+QeKX9ptTFfxHw849dvcjuPxnGSMozYuE3P1OEn/iCRb7gCb\n" - "vsx23/Wf34VDv+oNvbuwnCLfqNS7LumCr3PGypZiZuSyWkJwxoU=\n" - "=Ck89\n" - -----END PGP SIGNATURE----- + "-keith\n" + "\n" + "-- \n" + "You received this bug notification because you are a member of qemu-\n" + "devel-ml, which is subscribed to QEMU.\n" + "https://bugs.launchpad.net/bugs/1915925\n" + "\n" + "Title:\n" + " ARM semihosting HEAPINFO results wrote to wrong address\n" + "\n" + "Status in QEMU:\n" + " Confirmed\n" + "\n" + "Bug description:\n" + " This affects latest development branch of QEMU.\n" + "\n" + " According to the ARM spec of the HEAPINFO semihosting call:\n" + "\n" + " https://developer.arm.com/documentation/100863/0300/Semihosting-\n" + " operations/SYS-HEAPINFO--0x16-?lang=en\n" + "\n" + " > the PARAMETER REGISTER contains the address of a pointer to a four-\n" + " field data block.\n" + "\n" + " However, QEMU treated the PARAMETER REGISTER as pointing to a four-\n" + " field data block directly.\n" + "\n" + " Here is a simple program that can demonstrate this problem:\n" + " https://github.com/iNvEr7/qemu-learn/tree/newlib-bug/semihosting-\n" + " newlib\n" + "\n" + " This code links with newlib with semihosting mode, which will call the\n" + " HEAPINFO SVC during crt0 routine. When running in QEMU (make run), it\n" + " may crash the program either because of invalid write or memory\n" + " curruption, depending on the compiled program structure.\n" + "\n" + " Also refer to my discussion with newlib folks:\n" + " https://sourceware.org/pipermail/newlib/2021/018260.html\n" + "\n" + "To manage notifications about this bug go to:\n" + https://bugs.launchpad.net/qemu/+bug/1915925/+subscriptions -c8b44453f57537ea40fc90119ddadf1982af2b404b0b98518ae4b2556f5cc792 +5e95b82302a672d9c36f24cab1025f182959d50d9cc395524c4c04af82b5e13f
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