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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260228-abyss-mmap-relocation-v1-1-c8ec0476894b@astrafall.org> References: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> In-Reply-To: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> To: qemu-devel@nongnu.org Cc: Laurent Vivier , Warner Losh , =?utf-8?q?Alex_R=C3=B8nne_Petersen?= , Richard Henderson , Pierrick Bouvier , Kyle Evans , =?utf-8?q?Alex_Benn=C3=A9e?= , Bingwu Zhang X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1229; i=xtex@astrafall.org; h=from:subject:message-id; bh=rTfZmcXB35KVF+0oZQFtWTXqSC2+Z2NKT1fd0IuSDek=; b=owGbwMvMwCW2U4Ij7wZL9ETG02pJDJkLT00V6LIQm7jx38qKPYoT75cuUpxT0+286Uns0+NJR zcFm3271zGRhUGMi8FSTJGlyLDBm1UnnV90WbkszBxWJpAh0iINDAwMDCwMfLmJeaVGOkZ6ptqG eoaGOkY6RgxcnAIw1R9eMPx3OTGRoTF04aXLGUKHC3TWXPzwcmd82dQdScfnPZDVVeDfxsjwTFj i3xQjgRKnKDHVY981Em3OMTeuWmm9nM11xtTeye08AA== X-Developer-Key: i=xtex@astrafall.org; a=openpgp; fpr=7231804B052C670F15A6771DB918086ED8045B91 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=157.180.15.194; envelope-from=xtex@envs.net; helo=mail.envs.net X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.706, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.401, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 27 Feb 2026 12:17:25 -0500 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @envs.net) X-ZM-MESSAGEID: 1772212714804158500 From: Bingwu Zhang Fixes: 4c13048e02d9 ("linux-user: Use page_find_range_empty for mmap_find_v= ma_reserved") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3310 Signed-off-by: Bingwu Zhang --- linux-user/mmap.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 07175e11d576..76978a56a859 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -423,12 +423,15 @@ abi_ulong mmap_next_start; static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size, abi_ulong align) { - target_ulong ret; + target_ulong ret =3D -1; =20 - ret =3D page_find_range_empty(start, reserved_va, size, align); + if (start <=3D reserved_va) { + ret =3D page_find_range_empty(start, reserved_va, size, align); + } if (ret =3D=3D -1 && start > mmap_min_addr) { /* Restart at the beginning of the address space. */ - ret =3D page_find_range_empty(mmap_min_addr, start - 1, size, alig= n); + ret =3D page_find_range_empty(mmap_min_addr, MIN(start - 1, reserv= ed_va), + size, align); } =20 return ret; --=20 2.52.0