Description of problem:


During an S3 CopyObject request involving encrypted multipart objects, RGW crashes with a SIGABRT in the notif-worker0 thread.

This crash does not occur with unencrypted or non-multipart uploaded objects, indicating the issue is specific to handling multipart + encryption during copy operations.

Version-Release number of selected component (if applicable):

ceph version 18.2.1-327.el9cp 

How reproducible:

Always 

Steps to Reproduce:
1. Create a bucket with SSE-S3 bucket encryption enabled.
# s3cmd mb s3://testenc1

#  aws --endpoint-url http://ceph-pri-vim-single-site-71-nf1bqi-node5:80 s3api put-bucket-encryption --bucket testenc1 --server-side-encryption-configuration '{"Rules": [{"ApplyServerSideEncryptionByDefault": {"SSEAlgorithm": "AES256"}}]}'

# aws --endpoint-url http://ceph-pri-vim-single-site-71-nf1bqi-node5:80 s3api get-bucket-encryption --bucket testenc1 
{
    "ServerSideEncryptionConfiguration": {
        "Rules": [
            {
                "ApplyServerSideEncryptionByDefault": {
                    "SSEAlgorithm": "AES256"
                }
            }
        ]
    }
}

2. Upload a multipart object

# s3cmd put obj20m s3://testenc1
upload: 'obj20m' -> 's3://testenc1/obj20m'  [part 1 of 2, 15MB] [1 of 1]
 15728640 of 15728640   100% in    0s    57.90 MB/s  done
upload: 'obj20m' -> 's3://testenc1/obj20m'  [part 2 of 2, 5MB] [1 of 1]
 5242880 of 5242880   100% in    0s    38.52 MB/s  done

# s3cmd info  s3://testenc1/obj20m
s3://testenc1/obj20m (object):
   File size: 20971520
   Last mod:  Fri, 25 Apr 2025 06:34:34 GMT
   MIME type: application/octet-stream
   Storage:   STANDARD
   MD5 sum:   8f4e33f3dc3e414ff94e5fb6905cba8c
   SSE:       AES256
   Policy:    none
   CORS:      none
   ACL:       winona hein: FULL_CONTROL
   x-amz-meta-s3cmd-attrs: atime:1745562289/ctime:1745562280/gid:0/gname:root/md5:8f4e33f3dc3e414ff94e5fb6905cba8c/mode:33188/mtime:1745562280/uid:0/uname:root


3. Perform S3 CopyObject

# s3cmd cp s3://testenc1/obj20m s3://testenc1/obj20m_copy
WARNING: Retrying failed request: /obj20m_copy (Remote end closed connection without response)
WARNING: Waiting 3 sec...


4. Observe the RGW crash

2025-04-25T06:04:01.541+0000 7f1b64491640 20 req 479854084246211760 0.009000130s s3:copy_obj max_chunk_size=4194304
2025-04-25T06:04:01.541+0000 7f1b64491640 20 req 479854084246211760 0.009000130s s3:copy_obj get_obj_state: rctx=0x55be905db490 obj=dolliel.691-bucky-3206-0:prefix1key_dolliel.691-bucky-3206-0_24 state=0x55be8ec445e8 s->prefetch_data=1
2025-04-25T06:04:01.541+0000 7f1b64491640 20 req 479854084246211760 0.009000130s s3:copy_obj max_chunk_size=4194304
2025-04-25T06:04:01.541+0000 7f1b64491640 20 req 479854084246211760 0.009000130s s3:copy_obj rados->read obj-ofs=0 read_ofs=0 read_len=4194304
2025-04-25T06:04:01.548+0000 7f1b64491640 20 req 479854084246211760 0.016000232s s3:copy_obj rados->read r=0 bl.length=4194304
2025-04-25T06:04:01.557+0000 7f1b64491640 20 req 479854084246211760 0.025000360s s3:copy_obj get_obj_state: rctx=0x55be905db490 obj=dolliel.691-bucky-3206-0:prefix1key_dolliel.691-bucky-3206-0_24 state=0x55be8ec445e8 s->prefetch_data=1
2025-04-25T06:04:01.557+0000 7f1b64491640 20 req 479854084246211760 0.025000360s s3:copy_obj max_chunk_size=4194304
2025-04-25T06:04:01.557+0000 7f1b64491640 20 req 479854084246211760 0.025000360s s3:copy_obj rados->read obj-ofs=4194304 read_ofs=0 read_len=1048576
2025-04-25T06:04:01.560+0000 7f1b64491640 20 req 479854084246211760 0.028000403s s3:copy_obj rados->read r=0 bl.length=1048576
2025-04-25T06:04:01.563+0000 7f1b64491640 -1 *** Caught signal (Aborted) **
 in thread 7f1b64491640 thread_name:notif-worker0

 ceph version 18.2.1-327.el9cp (8231b23b5fc431238517dc3adc21a3b5a4a7ce71) reef (stable)
 1: /lib64/libc.so.6(+0x3e730) [0x7f1c69a19730]
 2: /lib64/libc.so.6(+0x8b52c) [0x7f1c69a6652c]
 3: raise()
 4: abort()
 5: /lib64/libstdc++.so.6(+0xa1b21) [0x7f1c69d7ab21]
 6: /lib64/libstdc++.so.6(+0xad52c) [0x7f1c69d8652c]
 7: /lib64/libstdc++.so.6(+0xac4f9) [0x7f1c69d854f9]
 8: __gxx_personality_v0()
 9: /lib64/libgcc_s.so.1(+0x112d4) [0x7f1c69bf52d4]
 10: _Unwind_Resume()
 11: /usr/bin/radosgw(+0x2eb4a5) [0x55be88b0f4a5]
 12: /usr/bin/radosgw(+0x3e25e0) [0x55be88c065e0]
 13: /lib64/libstdc++.so.6(+0xdbad4) [0x7f1c69db4ad4]
 14: /lib64/libc.so.6(+0x897e2) [0x7f1c69a647e2]
 15: /lib64/libc.so.6(+0x10e800) [0x7f1c69ae9800]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- begin dump of recent events ---
 -9999> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s x>> x-amz-content-sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
 -9998> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s x>> x-amz-date:20250425T060400Z
 -9997> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s handler=14RGWHandler_Log
 -9996> 2025-04-25T06:04:00.290+0000 7f1b179f4640  2 req 5723659324235957503 0.000000000s getting op 0
 -9995> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s cache get: name=primary.rgw.log++script.prerequest. : hit (negative entry)
 -9994> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s :list_data_changes_log scheduling with throttler client=0 cost=1
 -9993> 2025-04-25T06:04:00.290+0000 7f1b179f4640 10 req 5723659324235957503 0.000000000s :list_data_changes_log op=18RGWOp_DATALog_List


Actual results:

RGW crashes with signal SIGABRT. Crash occurs in notif-worker0 thread

Expected results:

CopyObject should complete successfully, regardless of encryption or multipart status.

Additional info:

The last successful run for the S3 copy of encrypted multipart objects was seen in 7.1 (18.2.1-298) as per our automation results.