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Author SHA1 Message Date
drh
76ad3be617 Add the --raw option to the dbtotxt command-line tool, for debugging. 
FossilOrigin-Name: abfecc08209c9377b6762125b2372e4eb1ab56b4d0399467c8fbe5cfc11c806e
 2026-06-12 11:55:39 +00:00
dan
23d0a08176 Fix a signed integer overflow that could occur in fts3 when processing corrupt database records. Bug [bugs:/info/2026-06-11T23:12:25Z | 2026-06-11T23:12:25Z]. 
FossilOrigin-Name: 978d04f051c06aff798f915b0774da19a0b4f89f9daee124f7e62b12afaaced8
 2026-06-12 11:24:30 +00:00
drh
b14202f86e Comment improvements on the ".ar -x" command of the CLI. No changes to code. 
FossilOrigin-Name: 5b939fb1a284088c4bd46adf517cf598816e2262cd77ee2d9caaab1cef2ce9a1
 2026-06-11 23:11:14 +00:00
drh
0b9f4ee89c Fix harmless compiler warnings. 
FossilOrigin-Name: dd0c161fcd1619518cd4671d64afb6afeec44c140ec176ccb8616d381a88f42f
 2026-06-11 22:48:16 +00:00
drh
d1b9001a7f Further improvements to the ".ar" command of the CLI. 
FossilOrigin-Name: 6149b938c7a1e95a0fb8600a81557dd0e3efb7b312f3806e2c09d03acf9f4b17
 2026-06-11 16:39:41 +00:00
drh
d57abdb017 Three-pass algorithm for the ".ar x" command in the CLI, so that symlinks 
are created after all regular files are created.

FossilOrigin-Name: 37a80d20fe1948db15ac72432ed7bf3d573c80807fe0a58c58440647e3c34ab8
 2026-06-11 14:28:48 +00:00
drh
970b3bc4c4 Add the (undocumented) --debug option to the ".ar" command in the CLI 
FossilOrigin-Name: 3a040ffc47fa3e38b36716587c56d9b071d9c69d9daaa9cf0ef6baa654419ab5
 2026-06-11 14:14:37 +00:00
drh
d688d1551a Improved detection of corrupt node IDs in RTree shadow tables. 
Test case in TH3.

FossilOrigin-Name: e01a185a699d0c4ad2341ce2114bc826f02768735cef67179a1127229a073d03
 2026-06-11 01:31:19 +00:00
dan
2bd7ac6716 Fix a signed-integer overflow in fts5 that might occur when dealing with strategicly corrupted records. Bug [bugs:/info/2026-06-10T03:56:42Z | 2026-06-10T03:56:42Z]. 
FossilOrigin-Name: fc6442ee54795fbeb746539193716238aa653d80170523bc327ae3ce0d945ebf
 2026-06-10 16:51:20 +00:00
drh
49edbe2150 Detect an OOM condition in the realpath() function of the fileio.c extension 
and cause that function to return NULL.  To Do:  we should go back in and
fix realpath() to raise an SQLITE_NOMEM error on OOM rather than returning
NULL.  But we will delay that, in as much as OOMs are all but impossible
on modern OSes.
[bug:/info/2026-06-10T07:46:32Z|Bug 2026-06-10T07:46:32Z].

FossilOrigin-Name: 8b961dc3d27c5aa62a5dc7c2e44f8b505817e184f8499f3bb903e06b5aec1b72
 2026-06-10 10:40:29 +00:00
drh
062016c2fd Fix a possible signed integer overflow in the RBU extension given a 
maliciously crafted delta.
[bugs:/info/2026-06-10T06:41:54Z|Bug 2026-06-10T06:41:54Z].

FossilOrigin-Name: 8531c0c3b61771592b055b0c22e903b8301a4161c7bcb7f9fc54d730b080d095
 2026-06-10 10:13:11 +00:00
drh
84ead09d94 Harden code that processes Fossil Deltas against OOM and maliciously 
malformed delta blobs.
[bugs:/info/2026-06-10T07:01:00Z|Bug 2026-06-10T07:01:00Z] and
[bugs:/info/2026-06-10T07:06:43Z|Bug 2026-06-10T07:06:43Z].

FossilOrigin-Name: 67271c31292bc1bddbb5e144c881c85c9f91b3963a1db4bae1f738adab50f7c0
 2026-06-10 09:51:33 +00:00
dan
2cb57d9d4a Avoid a possible integer overflow when fts5 tokenizes a very large document. Only possible with non-standard builds that use large values of SQLITE_MAX_LENGTH. Bug [bugs:/info/2026-06-09T05:27:16Z | 2026-06-09T05:27:16Z]. 
FossilOrigin-Name: d562e91374e2bebcf75a00776b4def532bb71914a07e37c8507f7a5918db1d3b
 2026-06-09 10:43:37 +00:00
drh
2f5d281796 Change loop counter variables from int to i64 to avoid a potential 
integer overflow inside an assert() statement when SQLite is compiled 
with SQLITE_DEBUG and an extra-large SQLITE_MAX_LENGTH.  Does not
affect production builds.
[bugs:/info/2026-06-09T08:53:14Z|Bug 2026-06-09T08:53:14Z].

FossilOrigin-Name: 77f615d9833b1f5eaabcb1a6b59af3a6698752abcd16592091f1630beec5969e
 2026-06-09 10:16:40 +00:00
drh
6a1efec20a Fix builds on i486 CPUs. [forum:/info/2025-01-25T12:58:44Z|Forum 2025-01-25T12:58:44Z]. 
FossilOrigin-Name: 4cb349370daab17123770c814c71872a3e4c616a3f984569b3d7f97f9c3f5ea0
 2026-06-08 18:15:27 +00:00
dan
082e41f17b Fix another buffer overread in fts5 when processing corrupt records. Bug [bugs:/info/2026-06-08T16:03:39Z | 2026-06-08T16:03:39Z ]. 
FossilOrigin-Name: 8ba5acabf9a0273ffbc2ba0bacc7f0b000690db91081858e4e563d6cbeeb4e7a
 2026-06-08 17:48:00 +00:00
dan
19a2ba1f5b Fix a buffer overread that could occur in fts5 when processing corrupt records. Bug [bugs:/info/2026-06-08T11:15:52Z | 2026-06-08T11:15:52Z] 
FossilOrigin-Name: b07441cfc06b8e6b47a4f4a6e0f5c261da580d5afe82444cc7f42a9f39ea7026
 2026-06-08 15:20:49 +00:00
dan
b677c5afd4 Avoid a potential use-after-free in fts5. Report [bugs:/info/2026-06-08T08:45:27Z | 2026-06-08T08:45:27Z]. 
FossilOrigin-Name: 9c018b02dbfb071c748d540ad679a4dbdc0fb88a62988e02cb51a3403509febe
 2026-06-08 12:03:52 +00:00
dan
7340b032d1 Clamp the nToken parameter to the fts5 snippet() function between 0 and 64. It has always been documented this way, but not previously implemented. Report [bugs:/info/2026-06-08T08:29:00Z | 2026-06-08T08:29:00Z]. 
FossilOrigin-Name: 4af1d9b3e54a7c42552e61284456bbd7089e525d4aa55e580f7518956d8521bb
 2026-06-08 11:24:05 +00:00
dan
2bc3763ec5 Add extra tests to check that non-deterministic functions may not be used in indexes. 
FossilOrigin-Name: beeef9dc2b1d778ca628c5e3adc097778646933233ea5ea4f03d2cace0199c17
 2026-06-08 10:47:55 +00:00
drh
a6812a4242 Improvements to the GCC compiler bug work-around of check-in [7fae321095ebec77]. 
FossilOrigin-Name: 247894f70d8616cb16468025809513a7db70086d24d2a289b50b4e8d9e073eb4
 2026-06-06 18:32:53 +00:00
drh
6bf7825ac5 Minor performance enhancement and improved comments on the quicksort 
algorithm used by the median() implementation in func.c.

FossilOrigin-Name: 2800f6a75bbb6ddc86f2e029a7d36ff08febe03812302fb7931eb68da316f74d
 2026-06-06 17:20:35 +00:00
drh
192b3a539b A new approach to working around the GCC bug. 
FossilOrigin-Name: 2f95186ea568b27d45bd19fca1e03b878afb0b1ea0938875897c7323bdeab8a2
 2026-06-05 00:11:56 +00:00
drh
002d33d8c5 Disable the vector-IN-SELECT optimization if the number of columns is so 
large that it would cause the WhereTerm.nChild column to wrap.
[bugs:/info/2026-06-04T10:00:49Z|Bug 2026-06-04T10:00:49Z].

FossilOrigin-Name: bb49dfc948048779a30deff9a3d1bb39846f6f72c26a2bdcdd0e386251720fe6
 2026-06-04 16:56:11 +00:00
dan
ee181f479a Fix a crash that could be caused by configuring the pager-cache with a bulk allocation too small to fit even one page. Bug [bugs:/info/2026-06-04T07:03:12Z | 2026-06-04T07:03:12Z]. 
FossilOrigin-Name: b4b9dc632b06f932759bc2fceeb6fa1dd6e0de329106ae1d34be874ea1695859
 2026-06-04 11:48:18 +00:00
drh
076db92d85 Fix a possible NULL pointer derefence in the (experimental and untested) 
uuid.c extension.
[bugs:/info/2026-06-04T09:50:59Z|Bug 2026-06-04T09:50:59Z].

FossilOrigin-Name: fa6374fe3ae1530f0b5ba10b7e6fb703ffe5dd592c532a965e7d50b7d2d70a5f
 2026-06-04 11:42:23 +00:00
drh
2dacda40a6 Extra testcase() macros to ensure adequate testing of the previous 
check-in.

FossilOrigin-Name: 003013ccabaaa7aea1e78844474ed5032ee9c9824f98c5d36687ac5256a5e128
 2026-06-04 11:39:13 +00:00
dan
62a3734e78 Fix problems with expressions like "(?,?,?) IN (SELECT c,b,a FROM ...)" when there is an index on columns "c", "b" and "a", but not in that order. Bug [bugs:/info/2026-06-04T07:02:53Z | 2026-06-04T07:02:53Z]. 
FossilOrigin-Name: 07667afd0f17b73b58df8ace6a2a5c3a593276f9b7804cb14d4705051258dd75
 2026-06-04 11:19:43 +00:00
drh
95d072cc81 Clearly mark the ext/misc/wholenumber.c extension as "testing and 
debugging use only".  Fix a potential integer overflow that can occur
if the above warning is ignored.
[bugs:/info/2026-06-04T09:40:28Z|Bug 2026-06-04T09:40:28Z].

FossilOrigin-Name: 44154ea9ae99d532d5c7268d70bd8b32751f7a82c367c7bd1ec0e6948d71d1b8
 2026-06-04 11:18:11 +00:00
dan
0120735de1 Update the utf-8 decoder in the ICU extension to treat invalid sequences as codepoint 0xFFFD, matching the core. Report [bugs:/info/2026-06-03T04:04:46Z | 2026-06-03T04:04:46Z]. 
FossilOrigin-Name: 840be0ee62c0ba34f4916c382e2d07071bebd8ce7bca31deb1616869722bfa4d
 2026-06-03 17:21:12 +00:00
dan
d80528ad4d Fix a faulty assert() in rtree that could fire when processing an unusually large record. Bug [bugs:/info/2026-06-03T14:44:46Z | 2026-06-03T14:44:46Z]. 
FossilOrigin-Name: e7335dd377a73fc2b913076ee659ed2b0c4a131b16e04b1b55fae677d6b56e8a
 2026-06-03 16:46:15 +00:00
drh
c2d29194a8 Use tail recursion on the larger of the two partitions when doing a 
quicksort as part of the implementation of the median() function,
to avoid excess stack usage on pathological inputs.
[bugs:/info/2026-06-03T07:26:42Z|Bug 2026-06-03T07:26:42Z].

FossilOrigin-Name: 7dc987165c030c260ba90a8878291b5ceb037c48c2f437a8fb3f05b6c4f84fde
 2026-06-03 16:21:17 +00:00
dan
61523e22f9 Fix an integer overflow problem in fts3 that could lead to a buffer overwrite on platforms where size_t is 32-bits. Bug [bugs:/info/2026-06-03T04:28:51Z | 2026-06-03T04:28:51Z]. 
FossilOrigin-Name: ef0c66d2a2e0b8f523633efca66a97236bb5a502525eb6a00a28a350ec7c76e6
 2026-06-03 15:29:59 +00:00
dan
51b2c3863b Fix another buffer overread in fts5 that could occur when processing corrupt records. Bug [bugs:/info/2026-06-03T03:54:40Z | 2026-06-03T03:54:40Z]. 
FossilOrigin-Name: b5337c87cc314e6830615e4efe2d4723fa7cedf87ce404f60d6e520aeab77cbc
 2026-06-03 14:58:13 +00:00
dan
6feeafc7de Fix another potential buffer overrun that could occur in fts5 when processing corrupt records. 
FossilOrigin-Name: 6ee44b199512b8cac604bf062f893a9047af4b5bfc881bb7cb69ae42d0a0adb4
 2026-06-03 13:49:33 +00:00
drh
a735462db6 Fix a potential UAF bug in the zipfile extension. 
[bugs:/info/2026-06-03T10:58:51Z|Bug 2026-06-03T10:58:51Z].

FossilOrigin-Name: 1fb5e9169ace6bea2bdf9013f39002c1ce5dc9ce51d6007bec22d91f456c15f0
 2026-06-03 13:12:20 +00:00
drh
d2240cc988 Fix negative array index in "testing and debugging uses only" extension 
qpvtab.c.
[bugs:/info/2026-06-03T07:26:26Z|Bug 2026-06-03T07:26:26Z].

FossilOrigin-Name: d066699fcacd87496645f3aa3c4049935410ae2451879a033102304c80273deb
 2026-06-03 12:43:50 +00:00
dan
942b7c555a Avoid excessive recursion and stack overflow in fts3 when processing a corrupt 
database.

FossilOrigin-Name: 21369378769195f20f839231f625582552eaa3f79044ca3e3efb7f9476b515a8
 2026-06-03 11:37:45 +00:00
drh
069e5acd63 The prefix_length() function should stop at the first NUL terminator. 
[bugs:/info/2026-06-03T07:42:00Z|Bug 2026-06-03T07:42:00Z].

FossilOrigin-Name: a9b8bdea0683bb03015ea1ee38f75636c80c189eed4b786b6d3d654a831cfdfb
 2026-06-03 11:07:47 +00:00
drh
1c0a370472 Make the (unused, untested, and unsupported) ext/misc/compress.c routines 
responsive to OOM conditions.
[bugs:/info/2026-06-03T08:28:36Z|Bug 2026-06-03T08:28:36Z].

FossilOrigin-Name: e3120e2a4339d51210645b14d075abba27dd97bd6bd6d42f445dd5baf3d337e3
 2026-06-03 10:55:08 +00:00
dan
2acb57c1be Fix a case where sqlite3expert could be tricked into executing arbitrary SQL by a corrupt database schema. 
FossilOrigin-Name: 8a633070e62bdc83a7cf895fd1a22c04b13579659df7cee9584d95096bfffab1
 2026-06-02 15:20:37 +00:00
dan
2a28b15748 Add extra test case to zipfile.test. No code changes. 
FossilOrigin-Name: 83fe72bcdf866bdaf3043ae5b0c1eb45a9d50a01b24b7a531858271dd746baab
 2026-06-02 11:11:02 +00:00
drh
b1637e5408 Fix the CLI so that it works when compiled using STDCALL on 
Microsoft x86.  Change should not affect other platforms.
[forum:/info/2026-06-02T09:44:12Z|Forum 2026-06-02T09:44:12Z].

FossilOrigin-Name: 83adece349aed73b8d0a3aec141213ea329150eb529f4fd9774ca157b49d02fc
 2026-06-02 10:08:30 +00:00
drh
b48ca02d64 Enhance PRAGMA integrity_check so that it better detects incorrect 
header sizes at the beginning of cells.

FossilOrigin-Name: 08bb2878e7575ab069f8f132537880a47a4d4543a1ac8bffc55e32488223245c
 2026-06-01 20:02:17 +00:00
dan
c28f2d22b6 Disable transitive WHERE constraints when there are explicit COLLATE operators. Fix for report [bugs:/info/ffddcd3617 | 2026-05-31T08:33:10Z]. 
FossilOrigin-Name: 18ee3a17c589cfd34500b6a6547d0cb51aea4dd14b4e1e4b2d0cf0dbfb32378e
 2026-06-01 18:01:13 +00:00
dan
48a591fa6b Minor performance improvement for the patch on this branch. 
FossilOrigin-Name: 2702fecc5c47704bdae535459e59260b55c571ff3b7d09617541e36829d4cf9c
 2026-06-01 17:56:11 +00:00
dan
2c351bbf82 Fix minor problems surrounding transitive WHERE constraints and explicit COLLATE terms. 
FossilOrigin-Name: 9500238a1d603a3f08a8fc0954725d5d217aab339720146ea0bc700e47b81c3c
 2026-06-01 17:40:23 +00:00
drh
ddea119f82 Make sure the authenticator is called for columns that are part of 
a USING in a FULL JOIN.
[bugs:/info/2026-05-31T02:00:37Z|Bug 2026-05-31T02:00:37Z].

FossilOrigin-Name: 4ef88a36f9d9669b0d74c58f79ad497803885ff6078e5f9685f13c96eab397cc
 2026-06-01 16:49:39 +00:00
dan
03aa9a7b50 For expressions of the form "(x, y...) IN (SELECT a, b ...)" where the result is not true, consider the collation sequences of columns "a" and "b" when determinining if the result should be false or NULL. Bug report [bugs:/info/0785f45e67 | 2026-05-31T02:10:44Z]. 
FossilOrigin-Name: 04d7a9d788cf0bb811483baceb9142f67d4a2380d4af409d5300a92f7972472e
 2026-06-01 16:20:40 +00:00
dan
62d17739bc Better handle a (possibly) potential buffer overrun in fts5. Based on the report in [bugs:/info/38e75aa4f9 | 2026-05-31T09:06:13Z]. 
FossilOrigin-Name: 9d0e39408075f22dd56ad5fb50ef458c0cd6a4ec234dd43b3a5f5e0ac4447b61
 2026-06-01 15:03:53 +00:00